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Amplitude Modulation (AM) and Frequency Modulation (FM)

Amplitude Modulation (AM) and Frequency Modulation (FM)

A modulated waveform consists of a carrier waveform and a modulating waveform. In AM, the carrier amplitude is var-
ied by the voltage level of the modulating waveform. In FM, the carrier frequency is varied by the voltage level of the
modulating waveform. The instrument accepts an internal or external modulation source. On a two-channel instru-
ment, one channel can modulate the other.

Select AM or FM before setting up any other modulation parameter. For more information on modulation, see

To Select AM or FM Modulation

l

The instrument allows only one modulation mode to be enabled on a channel. When you enable AM or FM, all other
modulations are off. On two-channel models, the two channels’ modulations are independent from one another,
and the instrument can add modulated waveforms from two channels. See

PHASe:SYNChronize

and

for details.

l

The instrument will not allow AM or FM to be enabled with sweep or burst. Enabling AM or FM, turns off sweep and
burst.

l

To avoid multiple waveform changes, enable modulation after configuring the other modulation parameters.

l

Front Panel:

or

Then turn modulation on:

The waveform is output using the present carrier and modulating waveform settings..

l

SCPI:

AM:STATe {OFF|ON}
FM:STATE (OFF|ON)

Agilent 33500 Series Operating and Service Guide

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Summary of Contents for Agilent 33500 Series

Page 1: ...Agilent Technologies 33500 Series Waveform Generator Operating and Service Guide ...

Page 2: ...mation Models and Options Introduction to Instrument Quick Start Front Panel Menu Operation Features and Functions Waveform Generation Tutorial SCPI Programming Reference Introduction to SCPI Language Alphabetical List of SCPI Commands and Queries Programming Examples Command Quick Reference Factory Reset State SCPI Error Messages Service and Repair Information Service and Repair Introduction Cali...

Page 3: ... To use the Web Interface 1 Establish a LAN connection from your PC to the instrument 2 Open your PC s Web browser 3 Launch the instrument s Web Interface by entering the instrument s IP address or fully qualified hostname in the browser address field 4 Follow the instructions in the Web Interface s on line help Example Programs There are several example programs on the product page Web site www a...

Page 4: ...ide or contact your Agilent Technologies Representative Trademarks Microsoft Visual Basic and Windows are U S registered trademarks of Microsoft Corporation Java is a U S trademark of Sun Microsystems Inc Agilent Technologies Inc 2012 Revised May 2012 Agilent 33500 Series Operating and Service Guide 3 ...

Page 5: ...an be found at www agilent com find GPLV2 This product uses Microsoft Windows CE Agilent highly recommends that all Windows based computers connected to Windows CE instruments use current anti virus software For more information see www agilent com find 33500 Warranty The material contained in this document is provided as is and is subject to being changed without notice in future editions Further...

Page 6: ...AR 52 227 14 June 1987 or DFAR 252 227 7015 b 2 November 1995 as applicable in any technical data Safety Notices A CAUTION notice denotes a hazard It calls attention to an operating procedure practice or the like that if not cor rectly performed or adhered to could result in damage to the product or loss of important data Do not proceed beyond a CAUTION notice until the indicated conditions are fu...

Page 7: ...nologies assumes no liability of the cus tomer s failure to comply with the requirements General Do not use this product in any manner not specified by the manufacturer The protective features of this product may be impaired if it is used in a manner not specified in the operation instructions Before Applying Power Verify that all safety precautions are taken Make all connections to the unit befor...

Page 8: ...ed service personnel Unless otherwise noted in the specifications this instrument or system is intended for indoor use in an installation cat egory II pollution degree 2 environment per IEC 61010 1 and 664 respectively It is designed to operate at a max imum relative humidity of 20 to 80 at 40 C or less non condensing This instrument or system is designed to operate at altitudes up to 2000 meters ...

Page 9: ...el 002 16MSa Arb Memory 004 GPIB Interface OCXO High stability OCXO Timebase 33509B 20 MHz One channel No arbitrary waveforms OCX Add High stability OCXO Timebase SEC Enable NISPOM File Security 33510B 20 MHz Two channels No arbitrary waveforms OCX Add High stability OCXO Timebase SEC Enable NISPOM File Security 33511B 20 MHz One channel Arbitrary waveforms MEM 16MSa Memory OCX Add High stability ...

Page 10: ...ase SEC Enable NISPOM File Security IQP Add IQ Baseband signal player One and two channel upgrades Model Description 335BW30 Increase bandwidth to 30 MHz 335ARB1 Add arbitrary waveforms to one channel 33500 Series 335ARB2 Add arbitrary waveforms to two channel 33500 Series 335MEM1 16 MSa memory for one channel 33500 Series 335MEM2 16 MSa memory for two channel 33500 Series 335OCX Add high stabilit...

Page 11: ...uture Convenient bench top features l 16 standard waveforms l Built in 16 bit arbitrary waveform capability l Precise pulse waveform capabilities with adjustable edge time l LCD display with numeric and graphical views l Easy to use knob and numeric keypad l Instrument state storage with user defined names l Portable ruggedized case with non skid feet Flexible system features l Downloadable 1M poi...

Page 12: ...ent Front Panel at a Glance The following table lists the main parts of the front panel generally from left to right Physical Feature Location On Off Switch USB Port Display Agilent 33500 Series Operating and Service Guide 11 ...

Page 13: ...duction to Instrument Physical Feature Location Menu Softkeys Fixed Function Buttons Numeric Keypad Knob Cursor Arrows Manual Trigger Button Sync Connector 12 Agilent 33500 Series Operating and Service Guide ...

Page 14: ...t context sensitive help Front Panel Display at a Glance Front Panel Number Entry You can enter numbers from the front panel in two ways l Use the knob and cursor keys to modify the number Rotate the knob to change a digit clockwise increases The keys below the knob move the cursor left or right Agilent 33500 Series Operating and Service Guide 13 ...

Page 15: ... a unit softkey to enter the value The key changes the number s sign Rear Panel at a Glance The following table lists the main parts of the front panel generally from top to bottom left to right Physical Feature Location External 10 MHz Reference Input Internal 10 MHz Reference Output 14 Agilent 33500 Series Operating and Service Guide ...

Page 16: ...re Location GPIB Connector Chassis Ground External Modulation Input Input External Trig Gate FSK Burst USB Interface Connector Local Area Network LAN Connector Instrument Cable Lock AC Power Agilent 33500 Series Operating and Service Guide 15 ...

Page 17: ... above to a good earth ground Contacting Agilent Technologies You can contact Agilent Technologies for warranty service or technical support l In the United States 800 829 4444 l In Europe 31 20 547 2111 l In Japan 0120 421 345 Use www agilent com find assist for information on contacting Agilent worldwide or contact your Agilent Technologies Representative 16 Agilent 33500 Series Operating and Se...

Page 18: ... doc umentation is also available at www agilent com find 33500 2 Connect the power cord and LAN GPIB or USB cable as desired Turn the instrument on by pressing the power switch in the lower left corner of front panel The instrument runs a power on self test and then displays a message about how to obtain help along with the current IP address It also displays the GPIB address if the GPIB option i...

Page 19: ... the instrument for service To turn off the instrument hold the power switch down for about 500 ms This prevents you from accidentally turning the instrument off by brushing against the power switch Adjust the Carrying Handle Grasp the sides of the handle pull outward and rotate the handle Set Output Frequency The default frequency is 1 kHz You can change the frequency and you can specify frequenc...

Page 20: ...o change frequency with the knob To change frequency with the numeric keypad Finish by selecting frequency units To change the units to period instead of frequency Agilent 33500 Series Operating and Service Guide 19 ...

Page 21: ...nd low values press and then the second softkey In this case we will highlight Amp Offs 2 Enter the magnitude of the desired amplitude Press and then press Amplitude Using the numeric keypad enter the number 50 3 Select the desired units Press the softkey that corresponds to the desired units When you select the units the instrument outputs the waveform with the displayed amplitude if the output i...

Page 22: ...value or the offset previously selected When you change func tions the same offset is used if the present value is valid for the new function 2 Enter the desired offset In this case we will use the numeric keypad to enter 1 5 3 Select the desired units Press the softkey for the desired units When you select the units the instrument outputs the waveform with the Agilent 33500 Series Operating and S...

Page 23: ...nt for digital applications In the following example we will set the high level to 1 0 V and the low level to 0 0 V 1 Press the Units key 2 Press the Amp Offs softkey to toggle to High Low as shown below 3 Set the High Level value Press the Parameters key and press High Level Using the numeric keypad or knob and arrows select a value of 1 0 V If you are using the keypad you will need to select the...

Page 24: ...et Enter 1 0 with the numeric keypad or knob and press the V softkey if you used the keypad Set Duty Cycle of a Square Wave The power on default for square wave duty cycle is 50 The duty cycle is limited by the minimum pulse width spec ification of 16 ns The following procedure changes the duty cycle to 75 1 Select the square wave function Press the Waveforms key and choose Square 2 Press the Duty...

Page 25: ...can configure the instrument to output a pulse waveform with variable pulse width and edge time The following steps configure a 500 ms periodic pulse waveform with a pulse width of 10 ms and edge times of 50 ns 1 Select the pulse function Press the Waveforms key and choose Pulse to select the pulse function 2 Set the pulse period Press the Units key and then press Frequency Period to choose Period...

Page 26: ...the front panel For information on creating a cus tom arbitrary waveform refer to Set Up Arbitrary Waveform 1 Select the arbitrary waveform function Press the Waveforms button and choose the Arb softkey and then the Arbs softkey 2 Then choose Select Arb and use the knob to select Exp_Fall Press Select Use Built in Help System The built in help system provides context sensitive help on any front pa...

Page 27: ...hen press Select Press Done to exit Help View the help information for displayed messages Whenever a limit is exceeded or any other invalid configuration is found the instrument will display a message The built in help system provides additional information on the most recent message Press the System button and then press Help Then select the topic View the last message displayed and press Select ...

Page 28: ...ystem II instrument of the same size can be rack mounted beside the instrument Remove the carrying handle and the front and rear rubber bumpers before rack mounting the instrument To remove the handle rotate it to vertical and pull the ends outward To remove the rubber bumper stretch a corner and then slide it off To rack mount a single instrument order adapter kit 5063 9240 To rack mount two inst...

Page 29: ...f the actual load impedance differs from the value specified the displayed amplitude and offset levels will be incorrect The load imped ance setting is simply a convenience to ensure that the displayed voltage matches the expected load 1 Press a channel output key to open the channel configuration screen Note that the current output termination values both 50 Ω in this case appear on the tabs at t...

Page 30: ...otice that the Modulate button is illuminated and the status message AM Modulated by Sine appears at the top left of the display 3 Set the modulation depth Press the AM Depth softkey and then set the value to 80 using the numeric keypad or the knob and cursor keys 4 Select the modulating waveform shape Press Shape to select the modulating waveform s shape For this example select a sine wave 5 Pres...

Page 31: ...ntry by pressing the Hz softkey 4 Set the FSK shift rate Press the FSK Rate softkey and then set the value to 100 Hz using the numeric keypad or the knob and cursor keys At this point the instrument outputs an FSK waveform Output PWM Waveform You can configure the instrument to output a pulse width modulated PWM waveform PWM is only available for the Pulse waveform and the pulse width varies accor...

Page 32: ... of 50 ns both leading and trailing 2 Select PWM Press Modulate and choose Type then PWM Then press the first softkey Modulate to turn modulation on Notice the status message PWM Modulated by Sine in the upper left corner of the display 3 Set the width deviation Press the Width Dev softkey and set the value to 20 µs using the numeric keypad or the knob and cursor keys 4 Set the modulating frequenc...

Page 33: ... logarithmic spacing or using a list of frequencies For this example you will output a swept sine wave from 50 Hz to 5 kHz 1 Select the function and amplitude for the sweep For sweeps you can select sine square ramp pulse triangle or PRBS waveforms arbitrary waveforms noise and DC are not allowed For this example select a sine wave with an amplitude of 5 Vpp 2 Select the sweep mode Press and then ...

Page 34: ...and stop frequency above and they provide added flexibility To achieve the same results set the center frequency to 2 525 kHz and the frequency span to 4 950 kHz To generate a frequency sweep press Trigger twice The first press puts the trigger in manual mode and the second one sends a trigger For more information see Trigger Sweep or Burst Output Burst Waveform You can configure the instrument to...

Page 35: ...nd DC is not allowed For this example select a sine wave with an ampli tude of 5 Vpp 2 Select the burst mode Press Burst and then press the Burst Off On softkey Notice that a status message N Cycle Burst Trig Imm is shown in the tab of the current channel 3 Set the burst count Press the of Cycles softkey and then set the count to 3 using the numeric keypad or knob Press the Enter 34 Agilent 33500 ...

Page 36: ...e sweep or burst each time you press Trigger Continue pressing Trigger to re trigger instru ment l Timer issues one or more triggers a fixed time amount apart If sweep or burst is on pressing Trigger displays the trigger menu An illuminated Trigger key solid or blinking indi cates that one or both channels are in awaiting a manual trigger Solid illumination occurs when trigger menu is selected and...

Page 37: ...ht of the existing name and then turn the knob To delete a character rotate the knob until you get to the blank character before the capital A To delete all characters from the cursor position to the end of the line press the key You can enter numbers directly from the numeric keypad 3 Store the instrument state To restore retrieve a stored state 36 Agilent 33500 Series Operating and Service Guide...

Page 38: ...ont panel menus Selects waveform l Sine l Square l Ramp l Pulse l Arbitrary l Triangle l Noise l PRBS l DC Configures waveform specific parameters l Period Frequency l Amplitude or High and Low Voltage l Offset l Phase l Duty Cycle l Symmetry l Pulse Width l Edge Time l Arbitrary Waveform l Bandwidth Agilent 33500 Series Operating and Service Guide 37 ...

Page 39: ...lse Width or Duty Cycle l Frequency sweep as Center Span or Start Stop Configures modulation parameters l Modulation on or off l Modulation type AM FM PM PWM BPSK FSK or Sum l Modulation source l Modulation parameters Configures frequency sweep parameters l Sweep on or off l Linear logarithmic or frequency list l Sweep time 38 Agilent 33500 Series Operating and Service Guide ...

Page 40: ...l Starting phase angle of burst 360 to 360 l Burst period Stores and recalls instrument states l Store instrument states in non volatile memory l Assign custom names to storage locations l Recall stored instrument states l Delete stored instrument states l Restore all instrument settings to their factory default values l Select the instrument s power on configuration last power down or factory def...

Page 41: ... self test l Configure reference oscillator l Clear instrument memory NISPOM secure Configures system related parameters l Set screen layout l Select local language for front panel messages and help text l Select how periods and commas are used in numbers on display l Turn display on and off l Enable or disable error beeper l Enable or disable screen saver l Adjust display brightness l Install lic...

Page 42: ...ort l View about data serial number IP address firmware version and so on Enables and configures channels l Turn channel on and off l Specify which channel is the focus of the menus l Select output termination 1 Ω to 10 kΩ or Infinite l Enable disable amplitude autoranging l Select waveform polarity normal or inverted l Specify voltage limits l Specify whether output is normal or gated l Configure...

Page 43: ...weep burst or arbitrary waveform advance l Specify the trigger count and delay l Specify the slope rising or falling edge for an external trigger source l Specify the slope rising or falling edge of the trigger output signal l Enable disable the signal output from the Sync connector 42 Agilent 33500 Series Operating and Service Guide ...

Page 44: ... you are using the numeric keypad USB Configuration The USB interface requires no front panel configuration parameters Just connect the instrument to your PC with the appropriate USB cable The interface will configure itself The instrument supports both USB 1 1 and USB 2 0 LAN Configuration There are several parameters that you might need to set to establish network communication using the LAN int...

Page 45: ...o the Gateway configuration feature Contact your network administrator for the IP address subnet mask and gateway to use All IP addresses take the dot notation form nnn nnn nnn nnn where nnn in each case is a byte value in the range 0 through 255 You can enter a new IP address using the numeric keypad not the knob Just type in the numbers and the period delimiters using the keypad Use the left cur...

Page 46: ...ation Dot notation addresses nnn nnn nnn nnn where nnn is a byte value from 0 to 255 must be expressed with care as most PC web software interprets byte values with leading zeros as octal base 8 numbers For example 192 168 020 011 is actually equivalent to decimal 192 168 16 9 because 020 is interpreted as 16 expressed in octal and 011 as 9 To avoid confusion use only decimal values from 0 to 255 ...

Page 47: ...it New accept the default file name and then Start Editor You now have a 0 VDC waveform of exactly 8 points 2 Press Insert Built in then Choose Wave Use the knob or the arrows below the knob to select D Lorentz and press OK Use the keypad and the V softkey that appears when you start typing on the keypad to set the Ampli tude to 2 V and then press OK The waveform now has 108 points as the D Lorent...

Page 48: ...s highlighted and press OK For help in understanding the various parameters on the screen press Parameter Help Then press Done to exit the help screen 6 Using the numeric keypad and the up and down arrow softkeys set the Amplitude to 3 5 V the Cycles to 4 and the Points to 200 Leave all other settings at their default values and press OK Agilent 33500 Series Operating and Service Guide 47 ...

Page 49: ...de to 3 V the Offset to 2 V the Cycles to 8 and the Points to 100 Press OK Notice that the 8 square wave cycles have been inserted beginning at the marker Press Done Edit Waveform Characteristics 1 Press Edit Params and then set the Sampling Rate to 100 Sa s Press Cycle Period and notice that it has been set to 4 08 seconds This is because you have 408 sample points in the waveform and the sample ...

Page 50: ...ange the voltage of the selected point to 4 2 V Press Point and change the point marker to 150 to move the marker off the point When you press Enter to finish entering point 150 you will see the 4 2 V anomaly in the wave that you just created at point 160 Zoom and Pan 1 To see the point in detail press System then Pan Zoom Control Notice that the first softkey is set to Hor izontal meaning that th...

Page 51: ...e axis but we are too low to see the 4 2 V anomaly in the sine wave 3 Press Pan and set the Pan to 3 V in order to move higher on the waveform The 4 2 V point is now clearly visible 4 To see the entire waveform again press Show All Then press Done and Done again to return to the Edit Points screen 50 Agilent 33500 Series Operating and Service Guide ...

Page 52: ...e Point 20 times watching the display carefully as you do so in order to see the points being removed from the waveform 3 You can also edit points by using a table of voltages Press Advanced Edit and then Edit Via Table Set Point to 200 and then set the Voltage for point 200 to 3 V Use the knob to move between rows and set the Voltage for points 205 and 210 to 3 V Press Done Agilent 33500 Series O...

Page 53: ...tkey and change the Marker to Marker 2 Set Marker 2 to 300 The range defined by the markers is now highlighted in black 6 Press Copy then Paste and then At Start Notice that section you copied is now duplicated at the beginning of the waveform 7 Now press Paste and At End The same section of the waveform now also appears at the very end 52 Agilent 33500 Series Operating and Service Guide ...

Page 54: ...efine the range of the waveform that you want to modify You can then add subtract or multiply that por tion of the waveform by another waveform or you can transform the waveform in ways that do not involve other wave forms 1 Press Perform Math Set Marker 1 to 400 and Marker 2 to 500 2 Press Add then select Haversine and OK Set the Amplitude to 3 V the Offset to 0 V and press OK Notice that the hig...

Page 55: ...t Marker 1 to 200 and Marker 2 to 600 5 Press Advanced Math select Mirror and then OK 6 7 Continue learning about the interface by trying other Advanced Math features such as Invert Absolute Scale and so on Press the Operation Help softkey for details on these features 8 54 Agilent 33500 Series Operating and Service Guide ...

Page 56: ...lation AM and Frequency Modulation FM Phase Modulation PM Frequency Shift Keying FSK Modulation Pulse Width Modulation PWM Sum Modulation Frequency Sweep Burst Mode Triggering Dual Channel Operations System Related Operations Remote Interface Configuration External Timebase Reference Embedded Waveform Editor Throughout this document default states and values are identified These are the power on d...

Page 57: ... shows which functions are allowed with modulation sweep and burst Selecting a function that is not allowed with a modulation or mode disables the modulation or mode Carrier AM FM PM FSK BPSK PWM Sum Burst Sweep Sine and Square Pulse Triangle and Ramp Gaussian Noise a PRBS Arbitrary Waveform b b Sequence a Gated burst only b Applies to sample clock not whole waveform l Frequency Limitations Changi...

Page 58: ...figures a waveform with one command Output Frequency As shown below the output frequency range depends on the function default frequency 1 kHz for all functions Function Minimum Frequency Maximum Frequency Sine 1 µHz 30 MHz Square 1 µHz 30 MHz Ramp Tri 1 µHz 200 kHz Pulse 1 µHz 30 MHz PRBS 1 µbps 50 Mbps Arbitrary 1 µSa s 250 MSa s Agilent 33500 Series Operating and Service Guide 57 ...

Page 59: ...put termination setting does not affect the actual output voltage it only changes the values displayed and queried from the remote interface Actual output voltage depends on the connected load l Limits Due to Units Selection Amplitude limits are sometimes determined by the output units selected This may occur when the units are Vrms or dBm due to the differences in various functions crest factors ...

Page 60: ...ionship between offset voltage and output amplitude is shown below Vmax is the maximum peak voltage for the selected output termination 5 V for a 50 Ω load or 10 V for a high impedance load Voffset Vmax Vpp 2 If the specified offset voltage is not valid the instrument will adjust it to the maximum DC voltage allowed with the specified amplitude From the remote interface a Data out of range error w...

Page 61: ...ge VOLT age OFFSet Valid values are between 5 VDC into 50 Ω or 10 VDC into an open circuit While the instrument is in DC mode setting amplitude has no effect l Front Panel l SCPI SOURce 1 2 VOLTage OFFSet offset MIN MAX SOURce 1 2 VOLTage HIGH voltage MIN MAX SOURce 1 2 VOLTage LOW voltage MIN MAX The APPLy command configures a waveform with one command Output Units Applies to output amplitude onl...

Page 62: ...ffset no error is generated If the amplitude is 10 Vpp and you change the output termination setting from 50 Ω to high impedance OUT Put 1 2 LOAD INF the displayed amplitude doubles to 20 Vpp Changing from high impedance to 50 Ω halves the displayed amplitude The output termination setting does not affect the actual output voltage it only changes the values displayed and queried from the remote in...

Page 63: ...se the numeric keypad press Percent to finish l SCPI FUNCtion SQUare DCYCle percent MIN MAX The APPLy command sets the duty cycle to 50 Symmetry Ramp Waves Applies to ramp waves only Symmetry represents the fraction of each cycle that the ramp wave is rising assuming waveform is not inverted 0 Symmetry 100 Symmetry l The symmetry default 100 is stored in volatile memory and is remembered when you ...

Page 64: ...ing disabled the instrument uses the current attenuator settings and does not switch attenuator relays l You can disable autoranging to eliminate momentary disruptions caused by attenuator switching while changing amplitude However l The amplitude and offset accuracy and resolution and waveform fidelity may be adversely affected when reduc ing the amplitude below a range change that would occur wi...

Page 65: ...ates an error message and disables the output To re enable output remove the overload and turn the channel on again l Front Panel l l SCPI OUTPut 1 2 OFF ON The APPLy command always enables the channel output connector Waveform Polarity In normal mode default the waveform goes positive at the beginning of the cycle Inverted mode does the opposite l As shown below the waveform is inverted relative ...

Page 66: ...wave that is high in the first half of the cycle and low in the last half The Sync signal s voltages are TTL compatible when its load impedance exceeds 1 kΩ l For arbitrary waveforms the Sync signal rises at the beginning of the waveform and falls at the middle of the arbi trary waveform You can override this default behavior by using MARKer POINt to specify the point within the arbi trary wavefor...

Page 67: ...Marker On the Sync signal is a TTL high at the beginning of the sweep and a low at the marker frequency You can change this with OUTPut 1 2 SYNC MODE MARKER Burst l For a triggered burst the Sync signal is a TTL high when the burst begins The Sync signal is a TTL low at the end of the specified number of cycles may not be the zero crossing point if the waveform has an associated start phase For an...

Page 68: ...Output Configuration OUTPUT SYNC SOURCE CH1 CH2 Agilent 33500 Series Operating and Service Guide 67 ...

Page 69: ... reciprocal of maximum frequency to 1 000 000 s The default is 1 ms l The instrument adjusts the pulse width and edge time as needed to accommodate the specified period l Front Panel Select Pulse waveform Select period instead of frequency Set the period l SCPI SOURce 1 2 FUNC PULS PER seconds MIN MAX 68 Agilent 33500 Series Operating and Service Guide ...

Page 70: ...dth Period Pulse width is the time from the 50 threshold of a pulse s rising edge to the 50 threshold of the next falling edge l Pulse duty cycle 0 01 to 99 99 see restrictions below The default is 10 l The pulse duty cycle must conform to the following restrictions determined by the minimum pulse width Wmin The instrument will adjust the pulse duty cycle to accommodate the specified period Duty C...

Page 71: ...esents the time between the 10 and 90 thresholds l Edge time 8 4 ns to 1 μs default 10 ns l The specified edge time must fit within the specified pulse width as shown above The instrument will adjust the edge time to accommodate the specified pulse width l Front Panel l SCPI FUNC PULS TRAN LEAD seconds MIN MAX FUNC PULS TRAN TRA seconds MIN MAX FUNC PULS TRAN BOTH seconds MIN MAX 70 Agilent 33500 ...

Page 72: ... To Select AM or FM Modulation l The instrument allows only one modulation mode to be enabled on a channel When you enable AM or FM all other modulations are off On two channel models the two channels modulations are independent from one another and the instrument can add modulated waveforms from two channels See PHASe SYNChronize and COM Bine FEED for details l The instrument will not allow AM or...

Page 73: ...ation to an invalid value the instrument adjusts it to the maximum value allowed with the present carrier frequency The remote interface also generates a Data out of range error l Front Panel Then select a waveform shape l SCPI FUNCtion SINusoid SQU PULS RAMP TRI ARB NOISe PRBS The APPLy command configures a waveform with one command Carrier Frequency The maximum carrier frequency varies by functi...

Page 74: ...t modulate noise with noise PRBS with PRBS or an arbitrary waveform with an arbitrary waveform l The modulating waveform shape internal source may be l Sine wave l Square with 50 duty cycle l UpRamp with 100 symmetry l Triangle with 50 symmetry l DnRamp with 0 symmetry l Noise white gaussian noise l PRBS Pseudo Random Bit Sequence polynomial PN7 l Arb Arbitrary waveform l Front Panel or Then choos...

Page 75: ...INTernal FREQ freq MIN MAX SOURce 1 2 FM INTernal FREQ freq MIN MAX Modulation Depth AM The modulation depth is a percentage that represents the amplitude variation At 0 depth the amplitude is one half of the carrier s amplitude setting At 100 depth the amplitude varies according to the modulating waveform from 0 to 100 of the carrier s amplitude l Modulation depth 0 to 120 The default is 100 l Ev...

Page 76: ... half of the set frequency For example a 10 kHz deviation is equivalent to a 5 KBPS change in bit rate l Frequency deviation 1 µHz to carrier frequency 2 default 100 Hz l For FM the carrier frequency must always be greater than or equal to the frequency deviation Attempting to set a deviation greater than the carrier frequency will cause the instrument to set the deviation equal to the carrier fre...

Page 77: ...nal modulation input has 3 dB bandwidth of 100 kHz l AM example with modulation depth 100 when the modulating signal is at 5 V the output will be at the max imum amplitude When the modulating signal at 5 V the output will be at minimum amplitude l FM example with deviation of 10 kHz then a 5 V signal level corresponds to a 10 kHz increase in frequency Lower external signal levels produce less devi...

Page 78: ...onfiguring the other modulation parameters l SCPI PM STATe OFF ON Carrier Waveform Shape l PM carrier shape Sine default Square Ramp Triangle Pulse PRBS or Arbitrary You cannot use Noise or DC as the carrier waveform l Front Panel Then select any waveform except Noise or DC l SCPI FUNCtion SIN SQUare TRIangle RAMP PULSe PRBS ARB l The APPLy command configures a waveform with one command l When the...

Page 79: ...1 2 FREQuency frequency MIN MAX l The APPLy command configures a waveform with one command Modulating Waveform Shape The instrument accepts an internal or external modulation source l The modulating waveform shape internal source may be l Sine wave l Square with 50 duty cycle l UpRamp with 100 symmetry l Triangle with 50 symmetry l DnRamp with 0 symmetry l Noise white gaussian noise l PRBS Pseudo ...

Page 80: ...The external modulation input has a 3dB band width of 100 kHz l Modulating frequency internal 1 µHz to 30 MHz default 10 Hz l Front Panel Then set the modulating waveform frequency l SCPI SOURce 1 2 PM INT FREQ freq MIN MAX Phase Deviation The phase deviation setting represents the peak variation in phase of the modulated waveform from the carrier wave form The phase deviation can be set from 0 to...

Page 81: ...rce The instrument accepts an internal or external modulation source l Modulating source Internal default Other Channel or External l With the External source the carrier waveform is modulated with an external waveform The 5 V signal level present on the rear panel Modulation In connector controls the phase deviation For example if the deviation is set to 180 degrees a 5 V signal corresponds to a ...

Page 82: ...fter configuring the other modulation parameters FSK Carrier Frequency SOURce 1 2 FREQuency frequency MIN MAX The maximum carrier frequency varies by function as shown below The default is 1 kHz for all functions Function Minimum Carrier Frequency Maximum Carrier Frequency Sine 1 µHz 30 MHz Square 1 µHz 30 MHz Ramp Tri 1 µHz 200 kHz Pulse 1 µHz 30 MHz l When the External source is selected the out...

Page 83: ...ted FSK Source FSKey SOURce INTernal EXTernal May be Internal default or External l When the Internal source is selected the rate at which the output frequency shifts between the carrier frequency and hop frequency is determined by the FSK rate l When the External source is selected the output frequency is determined by the signal level on the rear panel Ext Trig connector When a logic low is pres...

Page 84: ...s from 15 to 25 under control of the modulating signal The instrument accepts an internal or external modulation source To Select PWM Modulation l You cannot enable PWM when sweep or burst is enabled l To avoid multiple waveform changes enable modulation after configuring the other modulation parameters l Front Panel The waveform is output using the present carrier and modulating waveform settings...

Page 85: ...C as the car rier l Front Panel l SCPI PWM INTernal FUNCtion SIN SQUare RAMP NRAMp TRIangle NOISe PRBS ARB Modulating Waveform Frequency The instrument accepts an internal or external modulation source The external modulation input has a 3dB band width of 100 kHz l Modulating frequency internal source 1 µHz to 30 MHz The default is 10 Hz l Front Panel l SCPI SOURce 1 2 PWM INT FREQ freq MIN MAX 84...

Page 86: ...od 16 ns l If necessary the instrument will adjust the deviation to accommodate the specified period Modulating Source The instrument accepts an internal or external modulation source l Modulating source Internal default Other Channel or External l If you select the External modulating source the deviation is controlled by the 5 V signal level on the rear panel Modulation In connector For example ...

Page 87: ...n PULSe The APPLy command configures a waveform with one command Pulse Period The range for the pulse period is from the reciprocal of the instrument s maximum frequency up to 1 000 000 s default 100 µs l Front Panel Select the pulse function press and toggle Frequency Period to Period Then use the knob or keypad to enter 86 Agilent 33500 Series Operating and Service Guide ...

Page 88: ...M the period If you use the keypad press a softkey to specify the units l SCPI FUNCtion PULSe PERiod seconds MIN MAX Note that the waveform period limits the maximum deviation Agilent 33500 Series Operating and Service Guide 87 ...

Page 89: ...uring other modulation parameters l Front Panel l SCPI SUM STATe OFF ON Modulating Waveform Shape The instrument accepts an internal or external modulation source On a two channel instrument you can modulate one channel with the other l The modulating waveform shape internal source may be l Sine wave l Square with 50 duty cycle l UpRamp with 100 symmetry l Triangle with 50 symmetry l DnRamp with 0...

Page 90: ... 1 µHz to 30 MHz default 100 Hz l Front Panel l SCPI SOURce 1 2 SUM INTernal FREQuency frequency MIN MAX Sum Amplitude The Sum Amplitude represents the amplitude of the signal added to the carrier in percent of carrier amplitude l Amplitude setting 0 to 100 of carrier amplitude 0 01 resolution l Sum Amplitude remains a constant fraction of carrier amplitude and tracks carrier amplitude changes l F...

Page 91: ...rrier waveform is summed by the 5 V signal level on the rear panel Modulation In connector For example if you have set the sum amplitude to 10 then when the modulating signal is at 5 V the output will be at the maximum amplitude 110 of carrier amplitude When the modulating signal is at 5 V the output will be at the minimum amplitude 90 of carrier amplitude l Front Panel l SCPI SUM SOURce INTernal ...

Page 92: ...is turned off l To avoid multiple waveform changes enable the sweep mode after configuring the other parameters l Front Panel Output a sweep using the present amplitude offset and frequency l SCPI FREQuency MODE SWEEP SWEep STATe OFF ON Start Frequency and Stop Frequency The start frequency and stop frequency set the sweep s upper and lower frequency bounds The sweep begins at the start frequency ...

Page 93: ...cy span 30 µHz to 30 MHz limited to 200 kHz for ramps The default is 900 Hz l To sweep up in frequency set a positive frequency span to sweep down set a negative frequency span l For sweeps with Marker Off the Sync signal is a square waveform with a 50 duty cycle missing or bad snippet The frequency of the Sync waveform is equal to the specified sweep time The signal is output from the front panel...

Page 94: ...f one is set The sweep return is always linear l Sweep mode Linear default Logarithmic or List l Front Panel l SCPI SOURce 1 2 SWEep SPACing LINear LOGarithmic Sweep Time Sweep time specifies the number of seconds required to sweep from the start frequency to the stop frequency The instrument calculates the number of points in the sweep based on the sweep time l Sweep time 1 ms to 250 000 seconds ...

Page 95: ...the signal on the front panel Sync connector goes to a logic low during the sweep The Sync signal always goes from low to high at the beginning of the sweep l Marker frequency 1 µHz to 30 MHz limited to 200 kHz for ramp The default is 500 Hz l When the sweep mode is enabled the marker frequency must be between the specified start frequency and stop frequency If you attempt to set the marker freque...

Page 96: ...diate source the instrument outputs a continuous sweep at a rate determined by the total of the hold time sweep time and return time The sweep time for this source is limited to 8000 seconds l With the External source the instrument accepts a hardware trigger on the rear panel Ext Trig connector and ini tiates one sweep each time Ext Trig receives a TTL pulse with the specified polarity l The trig...

Page 97: ...the beginning of each sweep or burst l To specify whether the instrument triggers on the rising or falling edge of the Ext Trig connector press the Trigger key then Trig Out Setup Then select the desired edge by pressing Trig Out l SCPI OUTPut TRIGger SLOPe POSitive NEGative OUTPut TRIGger OFF ON Frequency List In frequency list mode the instrument steps through a list of frequencies dwelling on e...

Page 98: ...igger The instrument can use an internal trigger to initiate burst or you can provide external trigger by pressing the front panel Trigger key applying trigger signal to rear panel Ext Trig connector or sending software trigger command from remote interface l External Gated Burst Mode Output waveform is on or off based on level of external signal applied to rear panel Ext Trig connector When the g...

Page 99: ...nt Panel l SCPI SOURce 1 2 BURSt MODE TRIGgered GATed Waveform Frequency You can specify the signal frequency during the burst in triggered and external gated modes In the triggered mode the number of cycles specified by the burst count is output at the waveform frequency In the external gated mode the waveform frequency is output when the external gate signal is true This differs from the burst p...

Page 100: ...mote interface while in the gated mode the instrument remembers the new count and will use it when the triggered mode is selected l Front Panel or l SCPI SOURce 1 2 BURS NCYC _cycles INF MIN MAX Burst Period Burst period is the time from the start of one burst to the start of next burst 1 µs to 8000 s default 10 ms Used in internal triggered burst mode only Burst period differs from waveform frequ...

Page 101: ...nt outputs a waveform of the specified number of cycles burst count when a trigger received After the specified number of cycles have been output the instrument stops and waits for next trigger l IMMediate internal the instrument outputs continuously when burst mode is enabled The rate at which the burst is generated is determined by BURSt INTernal PERiod l EXTernal the instrument accepts a hardwa...

Page 102: ...ep or burst l When the Internal immediate trigger source is selected the instrument outputs a square waveform with a 50 duty cycle from the Ext Trig connector at the beginning of the sweep or burst The frequency of the waveform cor responds to the specified burst period or total sweep time l When the External trigger source is selected the instrument disables the trigger out signal The Ext Trig co...

Page 103: ...Burst Mode Then use this softkey to choose the desired edge direction l SCPI OUTPut TRIGger SLOPe POSitive NEGative OUTPut TRIGger OFF ON 102 Agilent 33500 Series Operating and Service Guide ...

Page 104: ...sabled when in remote and when a function other than burst or sweep is currently selected Trigger Sources This triggering information applies to sweep and burst only You must specify the source from which the instrument accepts a trigger l Sweep and Burst trigger source Immediate default External Manual or Timer l The instrument will accept a manual trigger a hardware trigger from the rear panel E...

Page 105: ...Trig connector See Trigger Input Signal below Front Panel To specify whether the instrument triggers on a rising or falling edge press Trigger Setup and select the edge direction by pressing Slope SCPI TRIGger SOURce EXTernal TRIGger SLOPe POSitive NEGative Software Bus Triggering Available only from remote interface this is similar to manual trigger mode from the front panel but you trigger the i...

Page 106: ... gate signal goes false the current waveform cycle completes and then instrument stops while remaining at voltage level corresponding to starting burst phase For noise output stops as soon as the gate signal goes false Trigger Output Signal l A trigger out signal is provided on the rear panel Ext Trig connector used with burst and sweep only When enabled a TTL compatible pulse with either a rising...

Page 107: ...Triggering Then use this softkey to choose the desired edge direction l SCPI OUTPut TRIGger SLOPe POSitive NEGative OUTPut TRIGger OFF ON 106 Agilent 33500 Series Operating and Service Guide ...

Page 108: ... opens the menu shown below The first softkey allows you to specify whether you want to couple the frequencies with a ratio or an offset and the second softkey allows you to specify the ratio or offset Amplitude Coupling Amplitude coupling enabled by the Ampl Cpl softkey couples the amplitude and offset voltage between the channels so that changing the amplitude or offset on one channel affects bo...

Page 109: ...eform is a 100 mVpp 1 kHz sine wave on channel 1 and the middle waveform is a 100 mVpp 14 kHz sine wave on channel 2 The bottom trace is a Sync signal derived from channel 1 This image shows the two outputs combined on channel 1 The signals being combined do not have to be of the same type for example this image shows the same 14 kHz chan nel on channel 2 combined with a 100 mVpp square wave on ch...

Page 110: ...r signal They are not OR d together For example con sider the signals below When these are combined the amplitudes are added as shown below Note that the combined signal has three voltage levels 150 mV 50 mV and 50 mV This is a result of the following combinations l CH1 50 mV 50 mV DC Offset plus CH2 50 mV signal 150 mV l CH1 50 mV 50 mV DC Offset plus CH2 50 mV signal 50 mV l CH1 50 mV 50 mV DC O...

Page 111: ...kHz sine wave on channel 1 and three cycle bursts of a 14 kHz sine wave on channel 2 When these signals are combined on channel 1 the result is a simple amplitude addition of the two signals as shown below You also can combine the signals on channel 2 as shown below 110 Agilent 33500 Series Operating and Service Guide ...

Page 112: ...columns of ASCII numbers ranging between 1 0 and 1 0 in either scientific or decimal notation The data represents the relative shape of the waveform at the current amplitude range Finally you can import one or two column data files in CSV or TXT format To import a file press Waveforms then Arb then Arbs and Import Data on the front panel This opens a menu interface that quickly guides you through ...

Page 113: ... To compensate for minor channel channel time skew begin by pressing either of the channel output buttons and then pressing More to go to page 2 of the menu On this menu press IQ Arb Skew to open the following menu which allows you to compensate for up to 4 ns of skew SCPI Commands There are eight SCPI commands associated with the IQ Player Loading Dual Arbitrary Waveforms DATA ARB2 DATA ARB2 DAC ...

Page 114: ...djusting Playback of Dual Arbitrary Waveforms FUNCtion ARB SKEW STATe FUNCtion ARB SKEW FUNCtion ARB BALance STATe FUNCtion ARB BALance GAIN FUNCtion ARB BALance OFFSet Agilent 33500 Series Operating and Service Guide 113 ...

Page 115: ... ment state on power down l Both state storage methods remember the selected function including arbitrary waveforms frequency ampli tude DC offset duty cycle symmetry and modulation parameters l If you delete an arbitrary waveform from non volatile memory after storing the instrument state the waveform data is lost and the instrument uses exponential rise in its place l Stored states are not affec...

Page 116: ...s can be stored in the instrument s interface specific error queues See SCPI Error Messages for more information l Front Panel l SCPI SYSTem ERRor Beeper Control The instrument normally beeps when an error is generated from the front panel or remote interface You may disable the beeper but not the click generated by pressing a front panel key or turning the knob l This setting is non volatile it w...

Page 117: ...ST l Front Panel Display Brightness You can adjust display brightness 10 to 100 from the front panel only l This setting is non volatile it will not be changed by power cycling or RST l Front Panel Date and Time You can set the instrument s date and time clock l Front Panel l SCPI SYSTem DATE yyyy mm dd SYSTem TIME hh mm ss Manage Files You can perform file management tasks including copying renam...

Page 118: ...trument to assure you that the instrument is oper ational You can also run a more complete self test For details see Self Test Procedures Display Control For security reasons or to speed up the rate at which the instrument executes remote interface commands you may want to turn off the display You can also remotely display a message or clear a message on the display l The display is enabled when p...

Page 119: ...nguage Version Query The instrument complies with the rules and conventions of the present version of SCPI Standard Commands for Pro grammable Instruments Use SYSTem VERSion to determine the SCPI version with which the instrument complies The query returns a string in the form YYYY V representing the year and version number for that year for example 1999 0 License Installation The 33500 Series has...

Page 120: ... information l Agilent 33500 Series Product Reference CD Contains instrument drivers product documentation and pro gramming examples Auto starts and provides instructions GPIB Configuration Each device on the GPIB IEEE 488 interface must have a unique whole number address between 0 and 30 The instrument ships with a default address of 10 and the GPIB address is displayed at power on l This setting...

Page 121: ...ftkey to DHCP to use DHCP to automatically assign an IP address l SCPI SYSTem COMMunicate LAN DHCP state To manually set an IP address Subnet Mask or Default Gateway turn DHCP off then change IP setup as described below IP Address You can enter a static IP address for the instrument as a four byte integer expressed in dot notation Each byte is a dec imal value with no leading zeros for example 169...

Page 122: ... l This setting is non volatile it will not be changed by power cycling or RST l Front Panel l Finally toggle the first softkey to Manual and press Subnet Mask to enter a new subnet mask with the numeric keypad or knob for example 255 255 0 0 l SCPI SYSTem COMMunicate LAN SMASk mask Default Gateway A gateway is a network device that connects networks The default gateway setting is the IP address o...

Page 123: ...anel Finally press Host Name and enter the hostname with the knob and cursor keys The knob changes the char acter cursor arrows move between characters l SCPI SYSTem COMMunicate LAN HOSTname name Domain Name A domain name is a registered Internet name that gets translated into an IP address You cannot set it from the front panel or SCPI DNS Server DNS Domain Name Service is an Internet service tha...

Page 124: ...oes into remote all LAN changes will be canceled and the display will go to a different screen Re selecting the LAN Settings page will display the new settings if a LAN restart took place See SYSTem Subsystem Introduction for additional LAN configuration commands Web Interface The instrument includes a built in Web Interface You can use this interface over LAN for remote instrument access and cont...

Page 125: ... retrieve the USB ID string set by the manufacturer by using the Show USB Id feature l Front Panel The USB string appears on the screen The longest string of digits within the USB ID is the instrument s serial number l SCPI No equivalent command 124 Agilent 33500 Series Operating and Service Guide ...

Page 126: ...e the instrument with the more pre cise timebase as the 10 MHz reference output source 2 Connect instrument outputs to scope channel inputs 3 Set the same frequency on both instruments The scope should show the signals to be in sync with regard frequency but not phase A square wave works well to show the phase difference 4 For two channel instruments phase sync the two channels to each other This ...

Page 127: ...o phase reference point with the two instruments now aligned l Front Panel Then set the phase angle using the keypad or knob Once they are aligned press Set 0 Phase l SCPI SOURce 1 2 PHASe angle MINimum MAXimum SOURce 1 2 PHASe REFerence 126 Agilent 33500 Series Operating and Service Guide ...

Page 128: ...orm Editing Advanced Edit Advanced Math Utility Menu Standard Waveforms The embedded waveform editor includes the following 12 waveforms Sine y sin x Square A square wave that switches between two voltage levels Ramp A waveform with linearly rising or falling voltage Line Line segment DC A DC voltage Noise Random noise Gaussian A gaussian bell curve Sinc y sin x x D Lorentz The derivative of the L...

Page 129: ...a positive integer that the waveform includes Each cycle must have at least 8 points Points The number of points the waveform includes from 8 to 1 000 000 default 100 You may also extend the memory up to 16 000 000 points Because a cycle must have at least 8 points the number of points divided by the number of cycles must be at least 8 Half Width D Lorentz only A value that controls the waveform w...

Page 130: ...ditor press Waveforms and Arb then Arbs Edit New and Start Editor the opening screen appears Note that the same menu that contains the Edit New softkey also contains an Import CSV softkey You can use this to import ASCII files from oscilloscopes and other common instruments Edit Points allows you to edit the voltage values of individual points in the waveform You can also insert and remove points ...

Page 131: ...aveforms into the current waveform Select Point allows you to specify where the waveform is to be inserted and the Choose Wave softkey allows you to specify which one of the 12 waveform types is to be inserted Once you have used the arrow keys to select the waveform to insert and pressed OK the instrument displays the parameters for the waveform to be inserted Specify the parameters and press OK 1...

Page 132: ... If you have unsaved changes a message gives you the option of staying in the embedded waveform editor Advanced Edit As described above the Edit Points menu includes an Advanced Edit softkey This softkey allows you to cut copy and paste portions of the waveform edit waveform points in a table and perform mathematical operations on the waveform Agilent 33500 Series Operating and Service Guide 131 ...

Page 133: ... the end of the waveform or any point within the waveform Edit Via Table allows you to edit the voltage values of individual points in a table You can use the knob to scroll through the table or you can use the Point softkey to directly select any particular point You can also insert or remove waveform points Perform Math allows you to use markers to specify a range of the waveform You can then ad...

Page 134: ...ase the screen below shows that you picked D Lorentz You can also use the From Point and To Point parameters to specify the range of points on which to perform the mathematical operation Advanced Math Advanced Math allows you to perform several different types of operations on the waveform To open Advanced Math from the embedded waveform editor press Edit Points Advanced Edit Perform Math and Adva...

Page 135: ...en Each of the operations shown below will be described below using images taken before and after each operation to demonstrate the operations effects Invert reflects the waveform across the horizontal axis Image Before Invert 134 Agilent 33500 Series Operating and Service Guide ...

Page 136: ...itor Image After Invert Absolute multiplies all negative waveform values by 1 Image Before Absolute Image After Absolute Mirror reverses order of the points in the range Agilent 33500 Series Operating and Service Guide 135 ...

Page 137: ...e Mirror Image After Mirror Scale allows you to scale the waveform s amplitude and offset Here the amplitude scale was set to 180 and the off set scale was set to 1 V Image Before Scale 136 Agilent 33500 Series Operating and Service Guide ...

Page 138: ...the limits In this example the waveform was clipped to stay within the 400 mV lower limit and the 700 mV upper limit Image Before Clip Image After Clip Trim allows you to use markers to crop the waveform so that only the points defined by the marker range remain in the waveform Agilent 33500 Series Operating and Service Guide 137 ...

Page 139: ...ws you to undo recent operations subject to the amount of available memory and the size of the undo oper ation Redo allows you to redo undone tasks subject to the same limitations Pan Zoom Control allows you to pan or zoom horizontally or vertically You zoom using a percentage zoom factor and you pan by specifying a point and or voltage 138 Agilent 33500 Series Operating and Service Guide ...

Page 140: ...Embedded Waveform Editor Show All resets the scaling to display the entire waveform Agilent 33500 Series Operating and Service Guide 139 ...

Page 141: ... read is the sample rate and the waveform frequency equals the sample rate divided by the number of points in the waveform For example suppose a waveform has 40 points and the sample rate is 10 MHz The frequency would be 10 MHz 40 250 kHz and its period would be 4 µs Dual Arbitrary Waveforms Arbitrary waveforms may be single channel waveforms or with option IQP they may be dual channel arbitrary w...

Page 142: ...nc at the beginning of the segment l negate Sync at the beginning of the segment l maintain the current Sync state throughout the segment l assert Sync at the beginning of the segment and negate it at a defined point within the segment Quasi Gaussian Noise The Noise waveform is optimized for both quantitative and qualitative statistical properties It does not repeat for more than 50 years of conti...

Page 143: ...on for DSB FC is y t 1 2 1 2 d m t A c sin ω c t where m t is the modulating signal A c is the carrier amplitude ω c is the carrier frequency of the carrier d is the modulation depth or fraction of the amplitude range is used by the modulation For example a depth setting of 80 varies the amplitude from 10 to 90 of the amplitude setting 90 10 80 with either an internal or a full scale 5 V external ...

Page 144: ...BW 2 Modulating Signal Bandwidth for narrowband FM BW 2 Deviation Modulating Signal Bandwidth for wideband FM Phase Modulation PM PM is similar to FM but the phase of the carrier waveform is varied rather than the frequency y t sin ω c t d m t where m t is the modulating signal and d is the phase deviation Frequency Shift Keying FSK FSK is similar to FM except the carrier frequency alternates betw...

Page 145: ...an add controlled amounts of variable bandwidth noise to a signal or create two tone signals The instrument s internal modulation generator can produce the same continuous waveform as the main generator so the Sum function lets you to create many signals that would have required two instruments before The Sum feature increases the amplitude of the output signal by the amplitude of the modulating s...

Page 146: ...pleted and the instrument stops and remains at the voltage level corresponding to the waveform s starting burst phase For a noise waveform the out put stops immediately when the gate signal goes false Frequency Sweep Frequency sweeping is similar to FM but no modulating waveform is used Instead the instrument sets the output frequency based on either a linear or logarithmic function or a list of u...

Page 147: ...ak voltage is the maximum absolute value of all of its points The peak to peak voltage is the difference between the maximum and minimum The RMS voltage equals the standard deviation of all waveform points it also represents the one cycle average power in the signal minus the power in any DC component of the signal Crest factor is the ratio of a signal s peak value to its RMS value and varies acco...

Page 148: ...nal s RMS voltage and the load resistance in order to make the calculation dBm 10 x log 10 P 0 001 where P VRMS2 RL For a sine wave into a 50 Ω load the following table relates dBm to voltage dBm RMS Voltage Peak to Peak Voltage 23 98 dBm 3 54 Vrms 10 00 Vpp 13 01 dBm 1 00 Vrms 2 828 Vpp 10 00 dBm 707 mVrms 2 000 Vpp 6 99 dBm 500 mVrms 1 414 Vpp 3 98 dBm 354 mVrms 1 000 Vpp 0 00 dBm 224 mVrms 632 ...

Page 149: ...al to analog converter DAC that con verts the digital waveform values into voltage Non linearity in this DAC gives rise to harmonics that can be higher than the Nyquist frequency and will therefore be aliased to a lower frequency For example the fifth harmonic of 30 MHz 150 MHz could create a spur at 100 MHz Another source of non harmonic spurs is the coupling of unrelated signal sources such as t...

Page 150: ... than resistive and the cable begins to act like a transformer When this happens voltage drops in the shield due to I GND tend to be offset by equal voltages in the center conductor thereby reducing the effects of ground loops at higher frequencies Coaxial cables with two or three braided shields are much better than those with single braided or foil shields because they have lower resistance and ...

Page 151: ...scribes the SCPI programming language for the instrument Introduction to SCPI Language Alphabetical List of SCPI Commands and Queries Programming Examples Command Quick Reference Factory Reset State SCPI Error Messages 150 Agilent 33500 Series Operating and Service Guide ...

Page 152: ...LTAG are not valid and will generate an error l Braces enclose the parameter choices for a given command string The braces are not sent with the com mand string l A vertical bar separates multiple parameter choices for a given command string For example VPP VRMS DBM in the above command indicates that you can specify VPP VRMS or DBM The bar is not sent with the command string l Triangle brackets i...

Page 153: ...sing the MIN MAX and DEF Parameters For many commands you can substitute MIN or MAX in place of a parameter In some cases you may also sub stitute DEF For example consider the following command SOURce 1 2 APPLy DC frequency DEF amplitude DEF offset MIN MAX DEF Instead of selecting a specific value for the offset parameter you can substitute MIN to set the offset to its mini mum value MAX to set th...

Page 154: ...ommand keyword is separated from the first parameter by a blank space Use a semicolon to separate multiple commands as shown below RST CLS ESE 32 OPC SCPI Parameter Types The SCPI language defines several data formats to be used in program messages and response messages Numeric Parameters Commands that require numeric parameters will accept all commonly used decimal representations of numbers incl...

Page 155: ... between The following command uses a string parameter DISPlay TEXT quoted string For example the following command displays the message WAITING on the instrument s front panel the quotes are not displayed DISP TEXT WAITING You can also display the same message using single quotes DISP TEXT WAITING Using Device Clear Device Clear is an IEEE 488 low level bus message that you can use to return the ...

Page 156: ...ystem HCOPy Subsystem IEEE 488 2 Common Commands INITiate Subsystem LIST Subsystem LXI Subsystem MARKer Subsystem MEMory Subsystem MMEMory Subsystem OUTPut Subsystem PHASe Subsystem PM Subsystem PWM Subsystem RATE Subsystem ROSC Subsystem SOURce Subsystem STATus Subsystem SUM Subsystem SWEep Subsystem SYSTem Subsystem TRIGger Subsystem VOLTage Subsystem Other Commands ABORt COMBine FEED FORMat BOR...

Page 157: ...instrument is in normal or modulated modes except for sequenced arbitrary wave forms lists bursts and sweeps If instrument is running a sequence list burst or sweep ABORt restarts the stopped item with the current INIT and trigger conditions l When ABORt occurs in list mode the frequency goes back to the normal mode frequency until the first trigger occurs After the first trigger the first frequen...

Page 158: ...ation in percent Parameter Typical Return 0 to 120 default 100 5 000000000000000E 01 Set the internal modulation depth to 50 AM DEPT 50 Set the internal modulation depth to 120 AM DEPT MAX l Even at greater than 100 depth the instrument will not exceed 5 V peak on the output into a 50 Ω load To achieve modulation depth greater than 100 output carrier amplitude may be reduced l With AM SOURce EXTer...

Page 159: ...orm as the modulating source the frequency changes to the frequency of the arbitrary waveform based on the sample rate and the number of points in the arbitrary waveform l When using an arbitrary waveform for the modulating source changing this parameter also changes the cached metadata representing the aribtrary waveform s sample rate You can also change the modulating frequency of an arbitrary w...

Page 160: ...View internal function waveforms SIN SQU RAMP NRAM TRI NOIS PRBS or ARB Select a sine wave as the modulating waveform AM INT FUNC SIN l This command should be used only with the internal modulation source AM SOURce INTernal l Pulse and DC cannot be carrier waveform for AM Agilent 33500 Series Operating and Service Guide 159 ...

Page 161: ...on the rear panel Modulation In connector For example if modulation depth AM DEPTh is 100 then when the modulating signal is at 5 V the out put will be at the maximum amplitude Similarly a 5 V modulating signal produces output at minimum ampli tude l FM If you select the External modulating source the deviation is controlled by the 5 V signal level on the rear panel Modulation In connector For exa...

Page 162: ...op frequency is output l The maximum external BPSK rate is 1 MHz and the maximum FSK rate is 1 MHz l Note the connector used for externally controlled BPSK or FSK waveforms Trig In is not the same connector that is used for externally modulated AM FM PM and PWM waveforms Modulation In When used for BPSK or FSK the Trig In connector does not have adjustable edge polarity and is not affected by the ...

Page 163: ...Parameter Typical Return ON 1 OFF 0 default OFF 0 OFF or 1 ON Enable AM could also substitute FM BPSK FSK PM or PWM AM STAT ON l To avoid multiple waveform changes enable modulation after configuring the other modulation parameters l Only one modulation mode may be enabled at a time l The instrument will not enable modulation with sweep or burst enabled When you enable modulation the sweep or burs...

Page 164: ...y user waveform Waveform specific settings exist in the FUNCtion subsystem You can also query current output configuration APPLy General Remarks Amplitude l Changing amplitude may briefly disrupt output at certain voltages due to output attenuator switching The ampli tude is controlled however so the output voltage will never exceed the current setting while switching ranges To prevent this disrup...

Page 165: ...is returned as specified by VOLTage UNIT SOURce 1 2 APPLy ARBitrary sample_rate MIN MAX DEF amplitude MIN MAX DEF offset MIN MAX DEF Outputs arbitrary waveform selected by FUNCtion ARBitrary using the specified sample rate amplitude and offset Parameter Typical Return sample_rate from 1 µSa s to 250 MSa s default 40 kSa s none amplitude from 1 mVpp to 10 Vpp into 50 Ω 2 mVpp to 20 Vpp into an open...

Page 166: ... offset voltage will be halved See OUTPut 1 2 LOAD for details SOURce 1 2 APPLy DC frequency DEF amplitude DEF offset MIN MAX DEF Outputs a DC voltage Parameter Typical Return frequency not applicable to DC function Must be specified as a placeholder the value is remem bered when you change to a different function none amplitude not applicable to DC function Must be specified as a placeholder the ...

Page 167: ...NCtion NOISe BANDwidth Offset Voltage l The relationship between offset voltage and output amplitude is shown below Vmax is the maximum peak voltage for the selected output termination 5 V for a 50 Ω load or 10 V for a high impedance load Voffset Vmax Vpp 2 If the specified offset voltage is not valid the instrument will adjust it to the maximum DC voltage allowed with the specified amplitude From...

Page 168: ...hip between offset voltage and output amplitude is shown below Vmax is the maximum peak voltage for the selected output termination 5 V for a 50 Ω load or 10 V for a high impedance load Voffset Vmax Vpp 2 If the specified offset voltage is not valid the instrument will adjust it to the maximum DC voltage allowed with the specified amplitude From the remote interface a Data out of range error will ...

Page 169: ... adjust it to the maximum DC voltage allowed with the specified amplitude From the remote interface a Data out of range error will also be generated l Limits Due to Output Termination The offset range depends on the output termination setting For example if you set offset to 100 mVDC and then change output termination from 50 Ω to high impedance the offset volt age displayed on the front panel dou...

Page 170: ...n 5 V for a 50 Ω load or 10 V for a high impedance load Voffset Vmax Vpp 2 If the specified offset voltage is not valid the instrument will adjust it to the maximum DC voltage allowed with the specified amplitude From the remote interface a Data out of range error will also be generated l Limits Due to Output Termination The offset range depends on the output termination setting For example if you...

Page 171: ... example if you set offset to 100 mVDC and then change output termination from 50 Ω to high impedance the offset volt age displayed on the front panel doubles to 200 mVDC no error is generated If you change from high imped ance to 50 Ω the displayed offset voltage will be halved See OUTPut 1 2 LOAD for details SOURce 1 2 APPLy SQUare frequency MIN MAX DEF amplitude MIN MAX DEF offset MIN MAX DEF O...

Page 172: ...he specified offset voltage is not valid the instrument will adjust it to the maximum DC voltage allowed with the specified amplitude From the remote interface a Data out of range error will also be generated l Limits Due to Output Termination The offset range depends on the output termination setting For example if you set offset to 100 mVDC and then change output termination from 50 Ω to high im...

Page 173: ...K INTernal RATE 5 Enable BPSK Modulation BPSK STATe ON SOURce 1 2 BPSK INTernal RATE modulating_frequency MI Nimum MAXimum SOURce 1 2 BPSK INTernal RATE MINimum MAXimum Sets the rate at which the output phase shifts between the carrier and offset phase Parameter Typical Return 1 mHZ to 1 MHz default 10 Hz 1 000000000000000E 03 Set BPSK rate to 10 kHz BPSK INT RATE MIN l The BPSK rate is used only ...

Page 174: ...on the rear panel Modulation In connector For example if modulation depth AM DEPTh is 100 then when the modulating signal is at 5 V the out put will be at the maximum amplitude Similarly a 5 V modulating signal produces output at minimum ampli tude l FM If you select the External modulating source the deviation is controlled by the 5 V signal level on the rear panel Modulation In connector For exa...

Page 175: ...op frequency is output l The maximum external BPSK rate is 1 MHz and the maximum FSK rate is 1 MHz l Note the connector used for externally controlled BPSK or FSK waveforms Trig In is not the same connector that is used for externally modulated AM FM PM and PWM waveforms Modulation In When used for BPSK or FSK the Trig In connector does not have adjustable edge polarity and is not affected by the ...

Page 176: ...Parameter Typical Return ON 1 OFF 0 default OFF 0 OFF or 1 ON Enable AM could also substitute FM BPSK FSK PM or PWM AM STAT ON l To avoid multiple waveform changes enable modulation after configuring the other modulation parameters l Only one modulation mode may be enabled at a time l The instrument will not enable modulation with sweep or burst enabled When you enable modulation the sweep or burs...

Page 177: ...phase Set the starting phase of the burst from 360 to 360 degrees using BURSt PHASe 6 Select the trigger source Select the trigger source using the TRIGger 1 2 SOURce command Used in the trig gered burst mode only 7 Enable the burst mode After configuring the other burst parameters enable the burst mode BURSt STATe ON Burst Modes There are two burst modes described below The instrument enables one...

Page 178: ...ypical Return NORMal INVerted default NORMal NORM or INV Select true low logic for an externally gated burst BURS GATE POL INV SOURce 1 2 BURSt INTernal PERiod seconds MINimum MAXimum SOURce 1 2 BURSt INTernal PERiod MINimum MAXimum Sets the burst period for internally triggered bursts Parameter Typical Return 1 µs to 8000 s default 10 ms 1 200000000000000E 01 Sets the burst period to 12 seconds B...

Page 179: ...f a manual trigger is received TRIGger 1 2 it is ignored and no error will be generated SOURce 1 2 BURSt NCYCles num_cycles INFinity MINimum MAXimum SOURce 1 2 BURSt NCYCles MINimum MAXimum Sets the number of cycles to be output per burst triggered burst mode only Parameter Typical Return Whole number from 1 default to 100 000 000 limited as described below 5 000000000000000E 01 Return number of c...

Page 180: ...f the waveform is 1 000 000 points or less l Start phase also used in gated burst mode When the gate signal goes false the current waveform cycle finishes and output remains at the voltage level of the starting burst phase SOURce 1 2 BURSt STATe ON 1 OFF 0 SOURce 1 2 BURSt STATe Enables or disables burst mode Parameter Typical Return ON 1 OFF 0 default OFF 0 OFF or 1 ON Enable burst mode BURS STAT...

Page 181: ... The instrument must be unlocked CAL ibration_SECure_STATe OFF code to calibrate Parameter Typical Return none 0 pass or 1 fail Calibrate using the current value CAL l CALibration SETup should always precede the CALibration query l Increments the instrument s calibration count CALibration COUNt l Modifies the volatile version of the calibration constants Use CALibration STORe to save these constan...

Page 182: ... 33521A and 33522A or AT33500 for other 33500 Series instruments l To change code unsecure calibration memory with old code then set new code l If you forget the security code see Unsecure Instrument Without Security Code l This setting is non volatile it will not be changed by power cycling or RST CALibration SECure STATe ON 1 OFF 0 code CALibration SECure STATe Unsecures or secures the instrumen...

Page 183: ...re calibration constants into non volatile memory CAL STOR CALibration STRing string CALibration STRing Stores a message of up to 40 characters in calibration memory Common messages include last calibration date cal ibration due date or contact information for calibration department The instrument must be unlocked CALibration_ SECure_STATe OFF code to store this string Parameter Typical Return Quo...

Page 184: ... value of the known calibration signal Parameter Typical Return Numeric default 0 0 1 72300000E 001 Specify calibration value 0 0237 CAL VAL 2 37E 2 l This setting is non volatile it will not be changed by power cycling or RST Agilent 33500 Series Operating and Service Guide 183 ...

Page 185: ...utput to exceed either the instrument s output rating or the pro grammed limits the instrument will set COMBine FEED to NONE and report a settings conflict error l Signals are combined in digital form When two signals of significantly different amplitudes are combined the lower amplitude signal may have reduced resolution proportional to the ratio of the two amplitudes l Changing the function ampl...

Page 186: ...long DATA SEQuence command splits across lines for readability purposes Names of the form a and ar such as a09 and ar27 refer to arbitrary waveforms Build a Sequence from internal memory waveforms with binblock DATA SEQuence 42734 mybigSeq1 a01 0 once highAtStartGoLow 4 ar01 0 once highAtStartGoLow 20 a02 0 once highAtStartGoLow 5 ar02 0 once highAtStartGoLow 25 a03 0 once highAtStartGoLow 6 ar03 ...

Page 187: ...ighAtStartGoLow 6 ar36 0 once highAtStartGoLow 195 a37 0 once highAtStartGoLow 4 ar37 0 once highAtStartGoLow 200 a38 0 once highAtStartGoLow 5 ar38 0 once highAtStartGoLow 205 a39 0 once highAtStartGoLow 6 ar39 0 once highAtStartGoLow 210 a40 0 once highAtStartGoLow 4 ar40 0 once highAtStartGoLow 215 a41 0 once highAtStartGoLow 5 ar41 0 once highAtStartGoLow 220 a42 0 once highAtStartGoLow 6 ar42...

Page 188: ...DATA 1 2 DATA ARBitrary or DATA ARBitrary DAC for valid formats for arb_name SOURce 1 2 DATA ARBitrary2 FORMat ABAB AABB Applies only to instruments with the optional IQ player capability Specifies whether the format for data points in DATA ARB2 and DATA ARB2 DAC commands is interleaved ABAB or all of channel 1 followed by all of channel 2 AABB You may spell out the keyword ARBitrary2 but you must...

Page 189: ...of data The optional 1 2 after the ARBitrary keyword indicates whether the data to be down loaded contains one default or two channels of data To use dual arbitrary waveform files single files containing two channels of arbitrary waveform data you must have the optional IQ Player Parameter Typical Return arb_name An unquoted string of up to 12 characters none binary_block integer values from 32767...

Page 190: ...000 9000 7000 4000 7000 9000 10000 9000 l Each data point is either a 16 bit integer from 32 767 and 32 767 or a 32 bit floating point value from 1 0 to 1 0 Therefore the total number of bytes is always two times or four times the number of data points in the waveform For example 16 000 bytes are required to download a waveform with 8 000 points as integers but 32 000 bytes are required to downloa...

Page 191: ...Ction ARBitrary 1 73205100E 000 Return crest factor of all data points stored in NEG_RAMP DATA ATTR CFAC INT BuiltIn NEG_RAMP arb l Crest factor is the ratio of the peak value to the RMS value of the waveform l Querying a waveform that does not exist generates a Specified arb waveform does not exist error l arb_name can be a file name put in memory by MMEMory LOAD DATA 1 2 or a name generated from...

Page 192: ... Defines a sequence of waveforms already loaded into waveform memory via MMEMory LOAD DATA 1 2 or DATA A RBitrary The MMEMory LOAD DATA 1 2 command can also load a sequence file that automatically loads the asso ciated arbitrary waveforms and includes the amplitude offset sample rate and filter setup Parameter Typical Return IEEE Definite Length Arbitrary Block described below none see example l E...

Page 193: ...ion l marker point a number specifying the marker location in the arbitrary waveform This value must be between 4 and the number of points in the arbitrary waveform minus 3 l If you specify an arbitrary waveform that has not been loaded a Specified arb waveform does not exist error is generated Example of DATA SEQuence command The following command constructs a sequence named mySequence of three s...

Page 194: ...ult waveform Parameter Typical Return none none Clear contents of waveform memory on channel 1 and reload default waveform DATA VOL CLE SOURce 1 2 DATA VOLatile FREE Returns number of points available free in volatile memory Each arbitrary waveform loaded into volatile memory consumes space allocated in 128 point blocks so a waveform of 8 to 128 points consumes one such block a waveform of 129 to ...

Page 195: ...annunciators are disabled However the LCD screen remains on Parameter Typical Return ON 1 OFF 0 default ON 0 OFF or 1 ON Turn display off DISP OFF l Disabling the display improves command execution speed from the remote interface and provides basic security l Sending DISPlay TEXT string overrides the display state You can display a message with the display disabled l The display is enabled when po...

Page 196: ...t power on DISPlay TEXT CLEar Clears the text message from the front panel display Parameter Typical Return none none Clear message on display DISP TEXT CLE l l With DISPlay ON DISP TEXT CLEar returns the display to its normal mode l With DISPlay OFF DISP TEXT CLEar clears the message and the display remains disabled To enable the display send DISPplay ON or press the front panel Local key l The d...

Page 197: ...at car rier frequency From the remote interface a Settings conflict error will also be generated l The carrier frequency plus the deviation cannot exceed the selected function s maximum frequency plus 100 kHz If you attempt to set the deviation to an invalid value the instrument adjusts it to the maximum value allowed with the present carrier frequency The remote interface also generates a Data ou...

Page 198: ...ion its sample rate and corresponding frequency based upon the number of points will be the same as it was when played as the modulation source l If the internal function is TRIangle RAMP or NRAMp the maximum frequency limited to 200 kHz If the internal function is PRBS the frequency refers to bit rate and is limited to 50 Mbps l This command should be used only with the internal modulation source...

Page 199: ...on the rear panel Modulation In connector For example if modulation depth AM DEPTh is 100 then when the modulating signal is at 5 V the out put will be at the maximum amplitude Similarly a 5 V modulating signal produces output at minimum ampli tude l FM If you select the External modulating source the deviation is controlled by the 5 V signal level on the rear panel Modulation In connector For exa...

Page 200: ...op frequency is output l The maximum external BPSK rate is 1 MHz and the maximum FSK rate is 1 MHz l Note the connector used for externally controlled BPSK or FSK waveforms Trig In is not the same connector that is used for externally modulated AM FM PM and PWM waveforms Modulation In When used for BPSK or FSK the Trig In connector does not have adjustable edge polarity and is not affected by the ...

Page 201: ...Parameter Typical Return ON 1 OFF 0 default OFF 0 OFF or 1 ON Enable AM could also substitute FM BPSK FSK PM or PWM AM STAT ON l To avoid multiple waveform changes enable modulation after configuring the other modulation parameters l Only one modulation mode may be enabled at a time l The instrument will not enable modulation with sweep or burst enabled When you enable modulation the sweep or burs...

Page 202: ...ansfers in the block mode Parameter Typical Return NORMal SWAPped default NORMal NORM or SWAP Set SWAPped order FORM BORD SWAP l NORMal most significant byte MSB of each data point is first l SWAPped least significant byte LSB of each data point is first Most computers use this Agilent 33500 Series Operating and Service Guide 201 ...

Page 203: ...g 4 Set sweep time in seconds SWEep TIME 5 Select sweep trigger source TRIGger 1 2 SOURce 6 Set frequency at which signal on front panel Sync connector goes low during sweep optional MARKer FREQuency SOURce 1 2 FREQuency frequency MINimum MAXimum SOURce 1 2 FREQuency MINimum MAXimum Sets the output frequency This command is paired with FUNCtion PULSe PERiod whichever one is executed last over ride...

Page 204: ...combined with the current frequency settings would cause either frequency to exceed instrument specifications the instrument will generate an error and the exceeded frequency will clip at its maximum or minimum value l If setting mode to RATIO and setting RATIO to 1 0 still exceeds the specifications of either channel for example channel 1 is a 3 MHz sine and channel 2 is a ramp which cannot go th...

Page 205: ...change to maintain the 500 kHz offset l If the frequency coupling would cause either channel to exceed instrument frequency specifications for the present functions the command will result in an error and the frequency will be set to its maximum or minimum limit for that channel l Frequency coupling is not valid with arbitrary waveforms SOURce 1 2 FREQuency COUPle RATio ratio SOURce 1 2 FREQuency ...

Page 206: ... 2 FREQuency SPAN MINimum MAXimum Sets frequency span used in conjunction with the center frequency for a frequency sweep Parameter Typical Return instrument s maximum frequency 200 kHz for ramps default 900 Hz 1 000000000000000E 02 Set sweep frequency span to 100 kHz FREQ SPAN 100 KHZ l The following equation shows the limitation for the maximum frequency span Frequency Span max Max Frequency for...

Page 207: ...tem Parameter Typical Return instrument s maximum frequency 200 kHz for ramps default 100 Hz 1 000000000000000E 02 Set sweep start frequency to 100 Hz FREQ STAR 100 206 Agilent 33500 Series Operating and Service Guide ...

Page 208: ...SKey FREQuency MINimum MAXimum Sets the FSK alternate or hop frequency Parameter Typical Return 1 μHz to maximum instrument frequency 200 kHz limit for ramps default 100 Hz 1 000000000000000E 06 Set hop frequency to 10 kHz FSK FREQ 10000 Set hop frequency to 1 μHz FSK FREQ MIN SOURce 1 2 FSKey INTernal RATE rate_in_Hz MINimum MAXimum SOURce 1 2 FSKey INTernal RATE MINimum MAXimum Sets the rate at ...

Page 209: ...on the rear panel Modulation In connector For example if modulation depth AM DEPTh is 100 then when the modulating signal is at 5 V the out put will be at the maximum amplitude Similarly a 5 V modulating signal produces output at minimum ampli tude l FM If you select the External modulating source the deviation is controlled by the 5 V signal level on the rear panel Modulation In connector For exa...

Page 210: ...op frequency is output l The maximum external BPSK rate is 1 MHz and the maximum FSK rate is 1 MHz l Note the connector used for externally controlled BPSK or FSK waveforms Trig In is not the same connector that is used for externally modulated AM FM PM and PWM waveforms Modulation In When used for BPSK or FSK the Trig In connector does not have adjustable edge polarity and is not affected by the ...

Page 211: ...Parameter Typical Return ON 1 OFF 0 default OFF 0 OFF or 1 ON Enable AM could also substitute FM BPSK FSK PM or PWM AM STAT ON l To avoid multiple waveform changes enable modulation after configuring the other modulation parameters l Only one modulation mode may be enabled at a time l The instrument will not enable modulation with sweep or burst enabled When you enable modulation the sweep or burs...

Page 212: ...TPeak peak to peak voltage for an arbitrary waveform l FUNCtion ARBitrary SKEW IQ Player option only state on off for dual arbitrary waveform skew l FUNCtion ARBitrary SKEW TIME IQ Player option only skew time in seconds l FUNCtion ARBitrary SRATe sample rate for arbitrary waveform l FUNCtion ARBitrary SYNCh restarts arbitrary waveforms at first sample simultaneously on both waveforms l FUNCtion N...

Page 213: ... a function whose maximum amplitude is less than that of the current function the amplitude is adjusted to the maximum for the new function This may occur when the output units are Vrms or dBm due to the differences in crest factor for the various output functions For example if you change a 5 Vrms square wave into 50 Ω to a sine wave the instrument will adjust the amplitude to 3 536 Vrms the uppe...

Page 214: ...o trigger FUNC ARB ADV TRIG l TRIGger causes instrument to advance to next data point with each trigger received and forces TRIGger 1 2 SOURce to EXTernal l SRATe causes instrument to advance to next data point at the sample rate set by FUNCtion ARBitrary SRATe SOURce 1 2 FUNCtion ARBitrary FILTer NORMal STEP OFF SOURce 1 2 FUNCtion ARBitrary FILTer Specifies the filter setting for an arbitrary wa...

Page 215: ...ry waveform sample rate and frequency are not coupled to SOUR FREQ which applies to only non arbi trary waveforms l The arbitrary waveform plays at a speed specified by the sample rate When setting the frequency or period of an arbitrary waveform the instrument changes the sample rate based on the number of points in the waveform and the new frequency or period setting The new frequency or period ...

Page 216: ...output specification and the low level will be set 1 mV below the high level l Front Panel Setting the high or low level from the front panel may clip that level setting in order to achieve the desired level setting and a Data out of range error will be generated The high level cannot be set below the low level from the front panel l Note that when you set the high and low levels you are also sett...

Page 217: ...arbitrary waveform segment The con cept of frequency does not apply for arbitrary waveform sequences l Setting a sample rate when not in the ARB mode will not change the frequency For example if the current func tion is sine setting sample rate has no effect until the function changes to ARB l The maximum sample rate depends on the filter applied to the arbitrary waveform See FUNC tion ARBitrary F...

Page 218: ...s maximum frequency default 100 kHz 6 000000000000000E 03 Set bandwidth to 20 kHZ FUNC NOISe BWIDth 20000 The Noise function produces white gaussian noise with a Crest Factor of 4 6 The noise bandwidth is continuously adjustable to place more noise energy in the frequency range from 0 Hz to the specified noise bandwidth frequency SOURce 1 2 FUNCtion PRBS BRATe bit_rate MINimum MAXimum SOURce 1 2 F...

Page 219: ...sample rate FUNCtion PRBS BRATe and the channel s Sync pulse indicates the waveform s start For example if the PRBS uses PN23 with sample rate 500 Hz the output begins with 46 ms of high output 23 x 2 ms The polynomials are shown below Sequence Type Polynomial Feedback Length PN7 x7 x6 1 0x02000000 7 PN9 x9 x5 1 0x04000000 9 PN11 x11 x9 1 0x00400000 11 PN15 x15 x14 1 0x00020000 15 PN20 x20 x17 1 0...

Page 220: ...ept constant as frequency or period changes See FUNCtion PULSe HOLD l The pulse duty cycle is defined as Duty Cycle 100 x Pulse Width Period Pulse width is the time from the 50 threshold of a pulse s rising edge to the 50 threshold of the next falling edge l The pulse duty cycle range is 0 percent to 100 percent However the pulse duty cycle is limited by minimum pulse width and edge time restricti...

Page 221: ... l DCYCle the instrument holds the pulse duty cycle setting in percent constant as the period is varied If a com mand to set a pulse width value is received the width is converted to the equivalent duty cycle If pulse width mod ulation PWM is turned on the pulse duty cycle and the duty cycle deviation are held as the period is varied Width deviation commands are converted to duty cycle deviation v...

Page 222: ...lso be generated SOURce 1 2 FUNCtion PULSe TRANsition BOTH seconds MI Nimum MAXimum SOURce 1 2 FUNCtion PULSe TRANsition LEADing seconds MI Nimum MAXimum SOURce 1 2 FUNCtion PULSe TRANsition LEADing MINimum MAXimum SOURce 1 2 FUNCtion PULSe TRANsition TRAiling seconds MI Nimum MAXimum SOURce 1 2 FUNCtion PULSe TRANsition TRAiling MINimum MAXimum Sets the pulse edge time on the leading trailing or ...

Page 223: ...The instrument will adjust pulse edge time first and then limit pulse width as needed to accom modate the period From the remote interface a Settings conflict error will also be generated Pulse Width Period Wmin l The specified pulse width must also be less than the difference between the period and the edge time as shown below The instrument will adjust pulse edge time first and then limit pulse ...

Page 224: ...cycle that the square wave is at a high level assuming normal polar ity l For square waveforms APPLy SQUare replaces the current duty cycle setting with 50 To set a duty cycle other than 50 select the square wave with FUNCtion SQUare then use FUNCtion SQUare DCYCle l The duty cycle setting is remembered when you change from square wave to another function When you return to square wave the previou...

Page 225: ...n ARB Examples The following command sets the arbitrary waveform frequency to 1000 Hz For a waveform of 100 points the sample rate would be converted to 100 KSa s FUNCtion ARBitrary FREQ 1000 The following query returns the various values based upon a frequency of 1000 Hz and waveform point count of 100 FUNCtion ARBitrary SRATe FUNCtion ARBitrary POINts FUNCtion ARBitrary FREQuency Typical respons...

Page 226: ... ARBitrary BALance GAIN MAXimum MINimum This command requires the IQ Player option Sets the gain balance ratio for dual arbitrary waveforms Parameter Typical Return 30 to 30 1 02000000E 000 Load an arbitrary waveform from the USB drive and set up the balance gain channel 2 down by 1 02 and balance offsets 120 mV for channel 1 and 38 mV for channel 2 FUNC ARB USB qam32 barb FUNC ARB BAL GAIN 1 02 F...

Page 227: ... and balance offsets 120 mV for channel 1 and 38 mV for channel 2 FUNC ARB USB qam32 barb FUNC ARB BAL GAIN 1 02 FUNC ARB BAL OFFS1 0 12 FUNC ARB BAL OFFS2 0 038 FUNC ARB BAL ON l Both channels must stay on the same amplifier range l This command is enabled by FUNCtion ARBitrary BALance ON l This setting is stored as part of the instrument state and it is affected by RST FUNCtion ARBitrary SKEW ST...

Page 228: ...W STATe OFF for modulated signals sweeps lists and bursts Parameter Typical Return A floating point value in the range of 4 ns Default 0 1 40000000E 010 Set the skew time to compensate for channel 1 being behind channel 2 by 140 picoseconds FUNCtion ARBitrary SKEW TIME 1 4e 10 FUNCtion ARBitrary SKEW ON l Channels may exhibit slight timing variations at the output connector plane due to variations...

Page 229: ...ck data allows any type of device dependent data to be transmitted as a series of 8 bit binary data bytes This is particularly useful for transferring large quantities of data or 8 bit extended ASCII codes Capture and return the display image HCOP SDUM DATA l The image format PNG or BMP is specified by HCOPy SDUMp DATA FORMat HCOPy SDUMp DATA FORMat PNG BMP HCOPy SDUMp DATA FORMat Specifies the im...

Page 230: ... pending operations to complete Registers Some of the IEEE 488 commands are associated with various registers in the instrument These registers are described below Standard Event Register The following table describes the Standard Event Register Bit Number Bit Name Decimal Value Definition 0 Operation Complete 1 All commands before and including OPC have been executed 1 not used 2 Reserved for fut...

Page 231: ...e Data Summary 8 One or more bits are set in the Questionable Data Register bits must be enabled see STATus QUEStionable ENABle 4 Message Avail able 16 Data is available in the instrument s output buffer 5 Standard Event Sum mary 32 One or more bits are set in the Standard Event Register bits must be ena bled see ESE 6 Master Sum mary 64 One or more bits are set in the Status Byte Register and may...

Page 232: ...lear enable register does clear event register ESR Standard Event Status Register Query Queries the event register for the Standard Event Register group Register is read only bits not cleared when read Parameter Typical Return none 24 Read the event register bits 3 and 4 are set ESR l Any or all conditions can be reported to the Standard Event summary bit through the enable register To set the ena...

Page 233: ...d burst list or arbitrary waveform sequence modes to provide a way to poll or interrupt the computer when the TRG or INITiate IMMediate is complete l Other commands may be executed before Operation Complete bit is set l The difference between OPC and OPC is that OPC returns 1 to the output buffer when the current oper ation completes OPC Returns 1 to the output buffer after all pending commands co...

Page 234: ...ocation 1 RCL 1 l The instrument has five non volatile storage locations to store instrument states Location 0 holds the instrument power down state Use locations 1 2 3 and 4 to store other states You can configure the instrument to recall the power down state when power is restored MEM STAT REC AUTO l State storage remembers the selected function including arbitrary waveforms frequency amplitude ...

Page 235: ... group Parameter Typical Return Decimal sum of the bits in the register table below default 0 For example to enable bit 2 value 4 bit 3 value 8 and bit 7 value 128 the decimal sum would be 140 4 8 128 Default 0 24 Enable bits 3 and 4 in the enable register SRE 24 l To enable specific bits specify the decimal value corresponding to the binary weighted sum of the bits in the reg ister The selected b...

Page 236: ...Gger 1 2 SOURce BUS Parameter Typical Return none none Send immediate trigger to initiate a burst BURS STAT ON BURS MODE TRIG TRIG SOUR BUS TRG TST Sefl Test Query Performs a complete instrument self test If test fails one or more error messages will provide addi tional information Use SYSTem ERRor to read error queue Parameter Typical Return none 0 pass or 1 one or more tests failed Perform self ...

Page 237: ...trument to wait for all pending operations to complete before executing any additional commands over the interface Parameter Typical Return none none Wait until all pending operations complete WAI 236 Agilent 33500 Series Operating and Service Guide ...

Page 238: ...N or remains in the idle state OFF ignoring triggers until INITiate IMMediate is issued Parameter Typical Return ON 1 OFF 0 default ON 0 OFF or 1 ON Configure both channels for continuous trigger INIT CONT ALL ON l Once the channel is triggered it leaves the wait for trigger state and enters the action in progress state for example burst in progress or sweep in progress The action in progress stat...

Page 239: ... and ignores further triggers The triggered function will be left in whatever state is achieved with the count of triggers Rearming the trigger system with another INITiate IMMediate allows further triggers to apply l Use ABORt to return instrument to idle l If the specified channel has INIT CONT set ON these commands have no effect on trigger system and error 213 will be generated 238 Agilent 335...

Page 240: ...me the amount of time each frequency in a frequency list is generated Parameter Typical Return 1 µs to 1000 s default 1 s 1 200000000000000E 01 Set dwell time for channel 1 to 12 s LIST DWEL 12 l The instrument generates each frequency in a frequency list for the specified dwell time when TRIGger 1 2 SOURce is IMMediate SOURce 1 2 LIST FREQuency freq1 freq2 etc SOURce 1 2 LIST FREQuency Specifies ...

Page 241: ...n MINimum MAXimum 17 Return number of entries in the channel 1 frequency list LIST FREQ POIN l Default is list of three frequencies 100 Hz 1000 Hz and 550 Hz l MINimum is 1 MAXimum is 128 240 Agilent 33500 Series Operating and Service Guide ...

Page 242: ...Ble Disables or enables the Multicast Domain Name System mDNS Parameter Typical Return ON 1 OFF 0 default ON 0 OFF or 1 ON Turn mDNS ON LXI MDSN ENAB ON l Setting is enabled after SYSTem SECurity IMMediate RST power on or LAN reset LXI MDNS HNAMe RESolved Returns the resolved unique mDNS hostname in the form mDNS Hostname N The N is an integer appended if necessary to make the name unique The desi...

Page 243: ...e appended integer Parameter Typical Return none Agilent 335xxx Arbitrary Waveform Generator 00309 where xxx is the last three characters of the model number and 00309 is the last five digits of the serial number Return resolved mDNS service name LXI MDNS SNAMe RESolved l The resolved mDNS service name will be the desired service name LXI MDNS SNAMe DESired possibly with N appended where N is an i...

Page 244: ...ng on your network the LAN interface may take several seconds to restart after this command is sent l If the LAN interface or specific LAN services VXI 11 sockets and so on have been disabled by SYS Tem COMMunicate ENABle you must separately re enable the interface or services and cycle power on the instru ment for the LAN to be operational Agilent 33500 Series Operating and Service Guide 243 ...

Page 245: ...urn Whole number from 2 to number of cycles in the burst plus one NCYCles 1 default 2 2 000000000000000E 03 Set the marker cycle to 2000 MARK CYCL 2000 l This is valid only if burst is enabled and OUTP SYNC MODE is MARKer l With burst enabled marker cycle must be less than number of cycles in burst plus one Attempting to set the marker cycle outside this range will set marker cycle equal to middle...

Page 246: ...o number of samples in waveform minus 3 default is mid point of arbitrary waveform 1 000000000000000E 01 Set marker point to 10th sample in waveform MARK POIN 10 l Command only sets marker point in currently active arbitrary waveform FUNCtion ARBitrary not in a sequence l Command is valid only under these conditions l OUTPut SYNC MODE set to MARK FUNC set to ARB FREQuency MODE set to CW l OUTPut S...

Page 247: ...EMory STATe NAME assign a custom name to a state storage locations l MEMory STATe RECall AUTO specify whether the power down state is recalled from location 0 on power on l MEMory STATe VALid determine whether a storage location contains a valid state MEMory NSTates Returns the total number of memory locations available for state storage always 5 including memory location 0 Parameter Typical Retur...

Page 248: ...4 Names a storage location Parameter Typical Return An unquoted string of up to 12 characters The first character must be a letter A Z Others can be letters numbers 0 9 or underscores _ If name omitted factory default name is used TEST_RACK_1 Rename location 1 MEM STAT NAME 1 TEST_RACK_1 l Default names are AUTO_RECALL STATE_1 STATE_2 STATE_3 and STATE_4 l You can name location 0 but the name is o...

Page 249: ...set RST on power up MEMory STATe VALid 0 1 2 3 4 Indicates whether a valid state is currently stored in a storage location Parameter Typical Return 0 1 2 3 4 0 no valid state stored or 1 valid state stored Return state of memory location 3 MEM STAT VAL 3 l Use this before sending SAV to avoid accidentally overwriting a state 248 Agilent 33500 Series Operating and Service Guide ...

Page 250: ...0 5 0 5 DATA ARB dc0v 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 DATA SEQuence 3128 seqExample dc_ramp 0 once highAtStart 5 dc5v 2 repeat maintain 5 dc2_v 2 repeat lowAtStart 5 dc0v 2 repeat maintain 5 FUNC ARB dc_ramp MMEM STORE DATA INT dc_ramp arb FUNC ARB dc5v MMEM STORE DATA INT dc5v arb FUNC ARB dc2_5v MMEM STORE DATA INT dc2_5 arb FUNC ARB dc0v MMEM STORE DATA INT dc0v arb FUNC ARB seqExample ...

Page 251: ...ete removes files from Mass Memory device MMEMory DOWNload DATA downloads data from the host computer to instrument s Mass Memory MMEMory DOWNload FNAMe specifies file name for downloading data from the computer to instrument s Mass Mem ory MMEMory LOAD ALL loads instrument state file MMEMory LOAD DATA 1 2 loads arbitrary waveform from file MMEMory LOAD LIST 1 2 loads frequency list from file MMEM...

Page 252: ...ame where drive can be INTernal or USB and path must be an absolute folder path l INTernal specifies the internal flash file system USB specifies a front panel USB storage device l If drive path is omitted the folder specified by MMEMory CDIRectory is used l Absolute paths begin with or and start at the root folder of drive l Folder and file names cannot contain the following characters l The comb...

Page 253: ...M CAT USB MyData l The catalog takes the following form mem_used mem_free file listing The instrument returns two numeric values and a string for each file in the folder The first numeric value indicates the number of bytes of storage used on the drive The second indicates the number of bytes of storage available Each file listing is in the format file_name file_type file_size the quotation marks ...

Page 254: ...strument uses a small amount of space in the flash file system for internal use the mem_used value will not be zero even if no user files exist on the drive MMEMory CATalog STATe folder Lists all state files sta file extension in a folder Parameter Typical Return Any valid folder name defaults to folder selected by MMEMory CDIRectory 1000000000 327168572 MySetup sta STAT 8192 List all state files ...

Page 255: ...ult folder to the internal flash file system root directory INT after RST l You can only remove an empty folder no files Otherwise the instrument generates a Directory not empty error MMEMory COPY file1 file2 Copies file1 to file2 The file names must include any file extension Parameter Typical Return Both files can be any valid file name none Copy the state file MyFreqMeas sta from the root direc...

Page 256: ...d folder and the destination folder must exist and cannot be marked hidden or system l If the destination file exists it is overwritten unless marked as hidden or system l To copy a sequence file to a sequence file of the same name in a different folder you can specify just the drive and or path for destination MMEMory DELete file Deletes a file To delete a folder use MMEMory RDIRectory Parameter ...

Page 257: ...mmands allow you to duplicate instrument conditions from some previous time l This command loads the current instrument setup such as is used by SAV and RCL l Instrument setup files used by these commands contain much more than the state files used by SAV and RCL They also contain stored states and arbitrary waveforms GPIB and LAN parameters number format beep on off display options and help langu...

Page 258: ...ging to the next frequency in the list when a trigger event is received l A frequency list file contains a comma separated sequence of ASCII numbers with the first number representing the number of frequencies in the list 3 100 000000 1000 000000 550 000000 l If the destination file exists it is overwritten unless marked as hidden or system MMEMory LOAD STATe filename MMEMory STORe STATe filename ...

Page 259: ...s cur rent settings voltage values sample rate filter type and so on are stored in the segment or sequence file When you play the file for the first time with FUNCtion ARBitrary these settings are loaded and override the instru ment s current settings If you have manually edited a segment or sequence file such that the instrument settings have been removed the instrument settings will not be chang...

Page 260: ...OFF 0 default OFF 0 OFF or 1 ON Enable output connector for channel 1 OUTP ON l When output is enabled the front panel channel output key is illuminated l The APPLy commands override current OUTPut setting and enable the channel output connector l If excessive external voltage is applied to the front panel channel output connector an error message appears and output is disabled To re enable output...

Page 261: ...oltage depends on the connected load l You cannot specify output amplitude in dBm if output termination is set to high impedance The units are auto matically converted to Vpp See VOLT UNIT for details l You cannot change the output termination setting with voltage limits enabled the instrument cannot know which output termination settings the voltage limits apply to To change the output terminatio...

Page 262: ...Typical Return ON 1 OFF 0 default ON 0 OFF or 1 ON Disable front panel Sync connector OUTP SYNC OFF l Disabling the Sync signal reduces output distortion at lower amplitudes l For more details on the Sync signal for each waveform function see Sync Output Signal l When Sync is disabled the output level on the Sync connector is a logic low l Inverting a waveform OUTPut 1 2 POLarity INV does not inve...

Page 263: ...C signal All other conditions MARKer Sync follows current SOURce MARKer POINt setting When in CW mode and FUNC is ARB When modulating modulation source is internal and FUNC is ARB or modulation INT FUNC is ARB When modulating modulation source is external and FUNC is ARB Sync follows current SOURce MARKer CYCLe setting When BURST is on Sync follows current SOURce MARKer FREQuency set ting When SWE...

Page 264: ...FF 0 OUTPut TRIGger Disables or enables trigger out signal Parameter Typical Return ON 1 OFF 0 default OFF 0 OFF or 1 ON Enable trigger out signal OUTP TRIG ON l When enabled a TTL compatible square wave with the specified edge direction OUTPut TRIGger SLOPe is output from the rear panel Ext Trig connector at the beginning of the burst or sweep l In triggered burst mode l With TRIGger 1 2 SOURce I...

Page 265: ... uses the rising edge or falling edge for the trigger out signal Parameter Typical Return POSitive NEGative default POSitive POS or NEG Set trigger slope to NEGative falling edge OUTP TRIG SLOP NEG l POSitive outputs a rising edge pulse NEGative outputs a falling edge pulse l When enabled using OUTPut TRIGger a TTL compatible square wave with the specified edge direction is output from the rear pa...

Page 266: ...PHAS 15 l Phase offset is independent of burst phase BURSt PHASe l This command does not modify channel s primary phase generator it simply adds phase offset l This command also useful for modifying phase relationship between channels in a two channel instrument and between the channel and its sync signal l In a two channel instrument use PHASe SYNChronize to synchronize the phases of the two inte...

Page 267: ...r instrument because it resets the phase generators l In single channel instruments this synchronizes the main channel with the internal modulation generator l You can synchronize the phase between the primary signal and the SUM signal by sending SOURce 1 2 PH ASe SYNChronize after setting the functions for the primary signal and the SUM signal Otherwise the phase between the two signals is arbitr...

Page 268: ...rm Parameter Typical Return 0 to 360 default 180 9 000000000000000E 01 Set phase deviation to 90 degrees PM DEV 90 l With the External modulating source deviation is controlled by the 5 V signal level on the rear panel Mod ulation In connector For example if you have set the frequency deviation to 180 degrees then a 5 V signal level corresponds to a 180 degree phase deviation Lower external signal...

Page 269: ...n its sample rate and corresponding frequency based upon the number of points will be the same as it was when played as the modulation source l If the internal function is TRIangle RAMP or NRAMp the maximum frequency limited to 200 kHz If the internal function is PRBS the frequency refers to bit rate and is limited to 50 Mbps l This command should be used only with the internal modulation source P...

Page 270: ...on the rear panel Modulation In connector For example if modulation depth AM DEPTh is 100 then when the modulating signal is at 5 V the out put will be at the maximum amplitude Similarly a 5 V modulating signal produces output at minimum ampli tude l FM If you select the External modulating source the deviation is controlled by the 5 V signal level on the rear panel Modulation In connector For exa...

Page 271: ...op frequency is output l The maximum external BPSK rate is 1 MHz and the maximum FSK rate is 1 MHz l Note the connector used for externally controlled BPSK or FSK waveforms Trig In is not the same connector that is used for externally modulated AM FM PM and PWM waveforms Modulation In When used for BPSK or FSK the Trig In connector does not have adjustable edge polarity and is not affected by the ...

Page 272: ...Parameter Typical Return ON 1 OFF 0 default OFF 0 OFF or 1 ON Enable AM could also substitute FM BPSK FSK PM or PWM AM STAT ON l To avoid multiple waveform changes enable modulation after configuring the other modulation parameters l Only one modulation mode may be enabled at a time l The instrument will not enable modulation with sweep or burst enabled When you enable modulation the sweep or burs...

Page 273: ... pulse width of the carrier pulse waveform Parameter Typical Return 0 to 1000 seconds default 10 μs 1 000000000000000E 00 Set pulse width deviation to 1 s PWM DEV 1 Set pulse width deviation to 0 s PWM DEV MIN l The deviation is a deviation so if the pulse width is 10 ms and the deviation is 4 ms the width can vary from 6 to 14 ms l The pulse width deviation cannot exceed the current pulse width a...

Page 274: ... cycle deviation limited by edge time Duty Cycle Dev Duty Cycle 80 x Leading Edge Time Period 80 x Trailing Edge Time Period and Duty Cycle Dev 100 Duty Cycle 80 x Leading Edge Time Period 80 x Trailing Edge Time Period l With PWM SOURce EXTernal deviation is controlled by the 5 V signal level on rear panel Modulation In con nector For example with duty cycle deviation of 5 percent a 5 V signal le...

Page 275: ...me arbitrary waveform as the current function its sample rate and corresponding frequency based upon the number of points will be the same as it was when played as the modulation source l If the internal function is TRIangle RAMP or NRAMp the maximum frequency limited to 200 kHz If the internal function is PRBS the frequency refers to bit rate and is limited to 50 Mbps l This command should be use...

Page 276: ...on the rear panel Modulation In connector For example if modulation depth AM DEPTh is 100 then when the modulating signal is at 5 V the out put will be at the maximum amplitude Similarly a 5 V modulating signal produces output at minimum ampli tude l FM If you select the External modulating source the deviation is controlled by the 5 V signal level on the rear panel Modulation In connector For exa...

Page 277: ...op frequency is output l The maximum external BPSK rate is 1 MHz and the maximum FSK rate is 1 MHz l Note the connector used for externally controlled BPSK or FSK waveforms Trig In is not the same connector that is used for externally modulated AM FM PM and PWM waveforms Modulation In When used for BPSK or FSK the Trig In connector does not have adjustable edge polarity and is not affected by the ...

Page 278: ...Parameter Typical Return ON 1 OFF 0 default OFF 0 OFF or 1 ON Enable AM could also substitute FM BPSK FSK PM or PWM AM STAT ON l To avoid multiple waveform changes enable modulation after configuring the other modulation parameters l Only one modulation mode may be enabled at a time l The instrument will not enable modulation with sweep or burst enabled When you enable modulation the sweep or burs...

Page 279: ...ratio combined with the current sample rate settings would cause either sample rate to exceed instrument specifications the instrument will generate an error and the exceeded sample rate will clip at its maximum or minimum value l If setting mode to RATIO and setting RATIO to 1 0 still exceeds the specifications of either channel an error mes sage will be generated and the RATE COUPle STATe will n...

Page 280: ...e other channel s sample rate changes to maintain the specified coupling l If the sample rate coupling would cause either channel to exceed instrument sample rate specifications for the present functions the command will result in an error and the sample rate will be set to its maximum or mini mum limit for the particular channel SOURce 1 2 RATe COUPle RATio ratio SOURce 1 2 RATe COUPle RATio Sets...

Page 281: ...r channel to exceed instrument sample rate specifications for the present functions the command will result in an error and the sample rate will be set to its maximum or mini mum limit for the particular channel 280 Agilent 33500 Series Operating and Service Guide ...

Page 282: ...ils on determining whether OCXO is installed If an external 10 MHz reference signal is on the rear panel 10 MHz In connector the instrument uses the external signal An icon also appears at the top right corner of the display to indicate the reference source change ROSCillator SOURce INTernal EXTernal ROSCillator SOURce Selects the source for the reference oscillator used as the frequency phase ref...

Page 283: ...g ROSCillator SOURce CURRent Indicates which reference oscillator signal is currently in use when ROSC SOURce AUTO is ON Parameter Typical Return none INT internal or EXT 10 MHz connector on rear panel Determine reference signal source ROSC SOUR CURR l INT refers to the basic internal TCXO or the optional ovenized OCXO oscillator whichever is installed 282 Agilent 33500 Series Operating and Servic...

Page 284: ...ameter Typical Return AM DEPTh returns the modulation depth of channel 1 SOUR1 AM DEPTh returns the modulation depth of channel 1 SOUR2 AM DEPTh returns the modulation depth of channel 2 two channel instruments only Subsystems Using the Optional SOURce Keyword Because SOURce subsystem commands are often used without the SOURce keyword these commands are listed by their individual subsystems below ...

Page 285: ...tem Commands Using the Optional SOURce Keyword The following commands which are not part of any subsystem also have the optional SOURce keyword COMBine FEED TRACk 284 Agilent 33500 Series Operating and Service Guide ...

Page 286: ...ble Data condition register STAT us QUEStionable CONDition l The binary weighted sum of all bits enabled in the Questionable Data event register STAT us QUEStionable EVENt l The binary weighted sum of all bits enabled in the Questionable Data enable register STAT us QUEStionable ENABle The STATus queries also allow you to access information about the status bits in the Operation registers includin...

Page 287: ... SYS Tem LOCK RELease this bit will be cleared 11 Reserved 2048 Reserved for future use 12 Reserved 4096 Reserved for future use 13 Global Error 8192 This is set if any remote interface has an error in its error queue and cleared otherwise 14 15 Reserved 16 384 32 768 Reserved for future use Questionable Data Register Group The following table describes the Questionable Data Register group Bit Bit...

Page 288: ...bration is unsecured or calibration memory has been lost 9 External Ref erence 512 External timebase has been detected 10 15 Reserved 1024 32 768 Reserved for future use STATus OPERation CONDition Queries the condition register for the Standard Operation Register group Register is read only bits not cleared when read Agilent 33500 Series Operating and Service Guide 287 ...

Page 289: ...decimal values in the register 256 Enable bit 8 decimal value 256 in the enable register STAT OPER ENAB 256 l Use enable_value to specify which bits are reported to the Status Byte The specified value corresponds to the binary weighted sum of the register bits to enable For example to enable bit 5 value 32 and bit 9 value 512 the decimal value would be 544 l CLS does not clear the enable register ...

Page 290: ...corresponding bit is cleared l RST clears the condition register l The query reads the condition register and returns a decimal value equal to the binary weighted sum of all bits set in the register For example if bit 12 decimal value 4096 is set the query returns 4096 STATus QUEStionable ENABle enable_value STATus QUEStionable ENABle Enables bits in the enable register for the Questionable Data R...

Page 291: ... 3 STATus QUEStionable EVENt Queries the event register for the Questionable Data Register group This is a read only register the bits are cleared when you read the register Parameter Typical Return none 512 Read the event register bit 9 set STAT QUES l Once a bit is set it remains set until cleared by this query or CLS l RST STATus PRESet and PSC have no effect on this register l Query reads the ...

Page 292: ...two signals is arbitrary Example To create a SUM waveform 1 Configure carrier waveform Use FUNCtion FREQuency VOLTage and VOLTage OFFSet to specify the carrier waveform s function frequency amplitude and offset 2 Select the summing source The instrument accepts an internal or external modulation source EXT Channel 1 or Channel 2 Select the modulation source with SUM SOURce For an external modulati...

Page 293: ...and the SUM signal by sending SOURce 1 2 PH ASe SYNChronize after setting the functions for the primary signal and the SUM signal Otherwise the phase between the two signals is arbitrary l Summed output cannot exceed 5 V peak output into a 50 Ω load l If you select the External SUM source SUM SOURce EXTernal the carrier waveform is added to the external waveform The summing signal is the 5 V signa...

Page 294: ... the modulating source changing this parameter also changes the cached metadata representing the aribtrary waveform s sample rate You can also change the modulating frequency of an arbitrary waveform with FUNCtion ARBitrary FREQuency FUNCtion ARBitrary PERiod and FUNC tion ARBitrary SRATe These commands and the modulation frequency command are directly coupled in order to keep the arbitrary wavefo...

Page 295: ...urn INTernal EXTernal default INTernal INT or EXT Set the sum source to EXTernal SUM SOUR EXT l You can synchronize the phase between the primary signal and the SUM signal by sending SOURce 1 2 PH ASe SYNChronize after setting the functions for the primary signal and the SUM signal Otherwise the phase between the two signals is arbitrary l SUM SOURce EXTernal carrier waveform is summed with extern...

Page 296: ...void multiple waveform changes enable SUM after you have configured the other sum parameters l Only one modulation mode may be enabled at a time l The instrument will not allow SUM to be enabled when sweep or burst is enabled When you enable SUM the sweep or burst mode is turned off l With SUM STATe ON the sum amplitude plus the carrier amplitude may not exceed either the programmed limits or the ...

Page 297: ...ncy CENTer and FREQuency SPAN 3 Select linear or logarithmic sweep mode SWEep SPACing 4 Set sweep time SWEep TIME 5 Set sweep hold and return times SWEep HTIMe and SWEep RTIMe 6 Select sweep trigger source TRIGger 1 2 SOURce 7 Set the marker frequency optional MARKer FREQuency 8 Enable sweep SWEep STATe ON The following code produces the waveform shown below SOURce1 FUNCtion SINE SOURce1 FREQuency...

Page 298: ...000000000E 00 Set sweep return time to 5 6 s SWE RTIM 5 6 l The return sweep is always a linear sweep regardless of the setting of SWEep SPACing SOURce 1 2 SWEep SPACing LINear LOGarithmic SOURce 1 2 SWEep SPACing Selects linear or logarithmic spacing for sweep Parameter Typical Return LINear LOGarithmic default LIN LIN or LOG Set logarithmic sweep spacing SWE SPAC LIN l LINear output frequency va...

Page 299: ...time seconds to sweep from start frequency to stop frequency Parameter Typical Return 1 ms to 250 000 s for linear sweep up to 500 s for logarithmic sweep default 1 s 2 500000000000000E 01 Set sweep time to 25 s SWE TIME 25 l The number of discrete frequency points in the sweep is calculated based on the sweep time 298 Agilent 33500 Series Operating and Service Guide ...

Page 300: ...Lete deletes a license l SYSTem LICense DELete ALL deletes all licenses l SYSTem LICense DESCription returns description of a licensed option l SYSTem LICense ERRor lists errors generated during license installation l SYSTem LICense ERRor COUNt returns number of errors generated during license installation l SYSTem LICense INSTall installs licenses from a file or folder l SYSTem LOCK NAME returns ...

Page 301: ...hanged by power cycling or RST SYSTem COMMunicate ENABle ON 1 OFF 0 interface SYSTem COMMunicate ENABle interface Disables or enables the GPIB USB or LAN remote interface Also disables or enables available remote services such as Sockets Telnet VXI11 and the built in Web Interface Parameter Typical Return ON 1 OFF 0 default ON for all interfaces 0 OFF or 1 ON GPIB USB LAN SOCKets TELNet VXI11 WEB ...

Page 302: ...ate sets GPIB address to 10 l Must cycle power for this command to take effect SYSTem DATE yyyy mm dd SYSTem DATE Sets system clock date Parameter Typical Return yyyy 2000 to 2100 mm 1 to 12 dd 1 to 31 2011 07 26 Set system date to July 26 2011 SYST DAT 2010 7 26 SYSTem ERRor Reads and clears one error from error queue Parameter Typical Return none 113 Undefined header Read and clear first error i...

Page 303: ...d by a dash error string a quoted ASCII string up to 255 characters Licensed Options The following commands are associated with licensed options The licensed options are named as shown below Option Code Description OCXO High stability OCXO Timebase MEM 16MSa Arb Memory GPIB GPIB Interface 3352xA only SEC Enable NISPOM File Security BW30 Increase bandwidth to 30 MHz ARB Arbitrary waveforms IQP IQ P...

Page 304: ...ist of licensed options Extended Memory Option 16 MSa channel waveform memory Return description for option 002 SYST LIC DESC MEM l Option names are quoted strings representing options that may be licensed Installed licensed items can be iden tified with SYSTem LICense CATalog SYSTem LICense ERRor Returns a string of all the errors produced by SYSTem LICense INSTall Parameter Typical Return none 2...

Page 305: ...1 license installed Install licenses from a file SYST LIC INSTALL USB 33522B_LICENSE071 lic l License files must have a lic file extension l The format for file is drive path file_name where drive can be INTernal or USB and path must be an absolute folder path l INTernal specifies the internal flash file system USB specifies a front panel USB storage device e l If drive path is omitted the folder ...

Page 306: ...erfaces this bit will be cleared l Returns USB VXI11 GPIB or LAN IP Address indicating the I O interface that currently has a lock If no interfaces have a lock NONE is returned SYSTem LOCK RELease Decrements the lock count by 1 and may release the I O interface from which the command is executed Parameter Typical Return none none See Interface Locking Examples l When a lock is active Bit 10 in the...

Page 307: ...ommand complies with requirements in chapter 8 of the National Instrument Security Program Operating Manual NISPOM Parameter Typical Return none none Sanitize all user accessible instrument memory SYST SEC IMM This command is recommended for customers such as military contractors who must comply with NISPOM Excessive use of this command may cause premature failure of the flash memory This command ...

Page 308: ...ustrates usage Initial State unlocked Count 0 FROM USB SYST LOCK REQ returns 1 request successful State locked Count 1 FROM LAN SYST LOCK REQ returns 0 because USB has lock State locked Count 1 FROM USB SYST LOCK REQ returns 1 request successful State locked Count 2 FROM USB SYST LOCK REL State locked Count 1 FROM USB SYST LOCK REL State unlocked Count 0 Note that for each successful lock request ...

Page 309: ...e Control connection port number SYST COMM LAN CONT l Use the Control socket connection to send a Device Clear to the instrument or to detect pending Service Request SRQ events The Device Clear command is DCL SYSTem COMMunicate LAN DHCP ON 1 OFF 0 SYSTem COMMunicate LAN DHCP Disables or enables instrument s use of DHCP The acronym DHCP stands for Dynamic Host Configuration Protocol a protocol for ...

Page 310: ...OMMunicate LAN UPDate to acti vate the new setting Parameter Typical Return Command nnn nnn nnn nnn default 0 0 0 0 Query CURRent STATic default CURRent 198 105 232 4 Set a static primary DNS address SYST COMM LAN DNS 198 105 232 4 SYST COMM LAN UPD l CURRent read address currently being used by the instrument l STATic read static address from non volatile memory This address is used if DHCP is di...

Page 311: ... being used by the instrument l STATic read static address from non volatile memory This address is used if DHCP is disabled or unavailable l Set to 0 0 0 0 when instrument is shipped from factory or after SYSTem SECurity IMMediate SYSTem COMMunicate LAN HOSTname name SYSTem COMMunicate LAN HOSTname CURRent STATic Assigns a hostname to the instrument A hostname is the host portion of the domain na...

Page 312: ...om non volatile memory This address is used if DHCP is disabled or unavailable l This setting is non volatile it will not be changed by power cycling or RST l Set to 169 254 5 21 when the instrument is shipped from the factory or after SYSTem SECurity IMMediate SYSTem COMMunicate LAN MAC Reads the instrument s Media Access Control MAC address Your LAN administrator may need the MAC address to assi...

Page 313: ...dress the instrument uses the AutoIP subnet mask l A value of 0 0 0 0 or 255 255 255 255 indicates that subnetting is not being used l This setting is non volatile it will not be changed by power cycling or RST l The subnet mask is set to 255 255 0 0 when the instrument is shipped from the factory or after a SYS Tem SECurity IMMediate command l CURRent read address currently being used by the inst...

Page 314: ...Waveform Generator Agilent 33522A or Welcome to Agilent s 33500 Series Waveform Generator other 33500 Series instruments when the instrument is shipped from the factory or after SYS Tem SECurity IMMediate SYSTem COMMunicate LAN UPDate Stores any changes made to the LAN settings into non volatile memory and restarts the LAN driver with the updated settings Parameter Typical Return none none see bel...

Page 315: ...gned with this command If you change this setting you must send SYSTem COMMunicate LAN UPDate to acti vate the new setting Parameter Typical Return Command nnn nnn nnn nnn default 0 0 0 0 Query CURRent STATic default CURRent 198 105 232 4 Set a static primary WINS address SYST COMM LAN WINS 198 105 232 4 SYST COMM LAN UPD l The assigned WINS addresses are used if DHCP is disabled or unavailable Ot...

Page 316: ...ts on both channels apply If voltage limits on either channel would prevent the other channel s setup from being applied the instrument will generate a settings conflict error and channel track ing will remain OFF l When TRACk is ON changes to either channel are reflected in both channels When TRACk is changed from ON or INV to OFF the channels will remain in their present setup frequency amplitud...

Page 317: ... trigger on channel 2 TRIG l Can be used with IMMediate EXTernal or BUS trigger source TRIGger 1 2 SOURce For example you can use TRIGger to issue an immediate trigger while waiting for an external trigger l Intended as an override For general software controlled triggering use TRG TRIGger 1 2 COUNt number TRIGger 1 2 COUNt Sets trigger count Parameter Typical Return 1 to 1 000 000 default 1 10000...

Page 318: ...received on the rear panel trigger input TRIG SOUR EXT In triggered burst mode l The instrument outputs a waveform of the specified number of cycles burst count when a trigger received After the specified number of cycles have been output the instrument stops and waits for next trigger l IMMediate internal the instrument outputs continuously when burst mode is enabled The rate at which the burst i...

Page 319: ...I wait so the instrument waits for all pending operations to complete before executing any additional commands For example the following command string guarantees that the first trigger is accepted and the operation is executed before second trigger is recognized TRIG SOUR BUS TRG WAI TRG WAI l Use OPC or OPC to determine when the sweep or burst is complete The OPC query returns 1 to the output bu...

Page 320: ...ffset PHASe The associated queries are also affected Parameter Typical Return DEGree RADian DEFault default DEGree DEG or RAD Set angle units to radians UNIT ANGL RAD l Setting may be overridden by adding units to numeric parameter in command For example PHASE 90 DEG spec ifies 90 degrees regardless of this setting l Front panel display always shows degrees regardless of UNIT ANGLe setting Agilent...

Page 321: ...nd VOLTage LIMit STATe 7 Select status of auto ranging for all output functions VOLTage RANGe AUTO 8 Set voltage coupling to lock amplitude and offset of the channels together VOLTageLCOUPle STATe This code demonstrates the procedure outlined above SOURce1 FUNCtion SQU SOURce1 FREQuency 1 0E 06 SOURce1 VOLTage 0 5 SOURce1 VOLTage OFFSet 0 5 SOURce1 FUNCtion SQUare PERiod 1 0E 06 SOURce1 FUNCtion P...

Page 322: ...ect the actual output voltage it only changes the values displayed and queried from the remote interface Actual output voltage depends on the connected load l Limits due to Output Coupling l Differences between remote and front panel operation If two channels are coupled both channels amplitude limitations will be checked before a change in amplitude is executed If a change in output amplitude wou...

Page 323: ...OLT age OFFSet Valid values are between 5 VDC into 50 Ω or 10 VDC into an open circuit While the instrument is in DC mode setting amplitude has no effect SOURce 1 2 VOLTage COUPle STATe ON 1 OFF 0 SOURce 1 2 VOLTage COUPle STATe Enables or disables the maintaining of the same amplitude offset range load and units on both channels of a two channel instrument The command applies to both channels the...

Page 324: ...ut voltage depends on the connected load l Limits due to VOLTage LIMit STATe If voltage limits are enabled the level settings are checked against the spec ified limits VOLTage LIMit HIGH VOLTage LIMit LOW before a level change is executed If an output level change would exceed a LIMIT setting the level is clipped to the maximum or minimum value allowed that will not exceed the LIMit setting and a ...

Page 325: ... output limits on channel 1 VOLT LIM HIGH 2 5 VOLT LIM LOW 2 5 VOLT LIM STAT ON l When this is turned ON if the present settings of amplitude and offset exceed the limits then the limits will be dis abled The instrument will generate either a Settings conflict error l When VOLTage COUPle STATe is ON and VOLTage LIMit STATe is ON voltage limit settings on both channels affect maximum amplitude and ...

Page 326: ...tions for either channel l Remote Interface First the amplitude and then if necessary the offset of that channel will be adjusted to comply with the voltage limits or specification The instrument will generate either a Data out of range or Settings conflict error l Front panel The offset value is clipped to the maximum value allowed that will not exceed the LIMit setting and a Data out of range er...

Page 327: ...ce 1 2 VOLTage UNIT Selects the units for output amplitude Parameter Typical Return VPP VRMS DBM default VPP VPP VRMS or DBM Set output amplitude units to Vrms VOLT UNIT VRMS l Does not affect offset voltage VOLTage OFFSet high level VOLTage HIGH or low level VOLTage LOW They all use units of volts l The instrument uses the current units selection for both front panel and remote interface operatio...

Page 328: ...es These programming examples help you get started with common tasks Configure a Sine Wave Configure a Square Wave Configure a Ramp Wave Configure a Pulse Wave Create a List of Frequencies Agilent 33500 Series Operating and Service Guide 327 ...

Page 329: ...s of SCPI commands where high and low can be used in place of SOUR VOLT and SOUR VOLT OFFS The following commands produce the sine wave shown above SOURce1 FUNCtion SIN SOURce1 FREQ 1 0E 03 SOURce1 VOLTage 2 0 SOURce1 VOLTage HIGH 2 0 SOURce1 VOLTage LOW 0 0 SOURce1 VOLTage OFFSet 1 0 OUTPut1 1 SOURce1 PHASe 90 0 Remarks l Although period can be adjusted from the front panel there is no SOUR FUNC ...

Page 330: ...mands where high and low can be used in place of SOUR VOLT and SOUR VOLT OFFS The following commands produce the square wave shown above SOUR FUNCtion SQU SOUR FUNCtion SQUare DCYCle 10 0 SOUR FREQ 1 0E 03 SOUR VOLT 2 0 SOUR VOLT HIGH 2 0 SOUR VOLT LOW 0 0 SOUR VOLT OFFS 1 0 OUTPut1 1 SOUR PHAS 90 0 Remarks l For Square Wave if you change SOUR FREQ the SOUR FUNC SQU PER will change For example SOU...

Page 331: ...f SCPI commands where high and low can be used in place of SOUR VOLT and SOUR VOLT OFFS The following commands produce the ramp wave shown above FUNCtion RAMP FUNCtion RAMP SYMMetry 50 0 FREQ 1 0E 03 VOLTage 2 0 VOLTage HIGH 2 0 VOLTage LOW 0 0 VOLTage OFFSet 1 0 OUTPut1 1 Remarks l Ramp frequency is limited to 200 kHz l Although period can be adjusted from the instrument s front panel there is no...

Page 332: ...T OFFS The following commands produce the pulse wave shown above FUNCtion PULS FUNC PULS FUNC PULS HOLD WIDT FUNC PULS TRAN LEAD 8E 8 FUNC PULS TRAN TRA 1 3E 7 FUNC PULS WIDT 1E 6 FREQ 6E5 VOLT 3 OUTP ON Remarks l You can use FUNC PULS PER instead of FREQ These commands are paired changing one changes the other l Pulse can be specified by width or duty cycle which are also coupled Use FUNCtion PUL...

Page 333: ...p to 128 frequencies The frequencies to be used are entered using the LIST FREQuency command or they may be read from a file using MMEMory LOAD LIST 1 2 Examples The following code demonstrates the LIST FREQuency method FUNCtion SQU FREQuency MODE LIST LIST DWELl 5 0E 03 LIST FREQuency 1 0E 03 3 0E 03 7 0E 03 VOLTage 1 0 OUTPut1 1 The results of this code are shown below 332 Agilent 33500 Series O...

Page 334: ...N MAX DEF offset MIN MAX DEF SOURce 1 2 APPLy SINusoid frequency MIN MAX DEF amplitude MIN MAX DEF offset MIN MAX DEF SOURce 1 2 APPLy SQUare frequency MIN MAX DEF amplitude MIN MAX DEF offset MIN MAX DEF DATA Commands DATA ARB2 FORMat AABB ABAB SOURce 1 2 DATA ARBitrary 1 2 arb_name binary_block value value SOURce 1 2 DATA ARBitrary 1 2 DAC arb_name binary_block value value SOURce 1 2 DATA ATTRib...

Page 335: ...ode SOURce 1 2 FREQuency MODE SOURce 1 2 FREQuency SPAN frequency MINimum MAXimum SOURce 1 2 FREQuency SPAN MINimum MAXimum SOURce 1 2 FREQuency STARt frequency MINimum MAXimum SOURce 1 2 FREQuency STARt MINimum MAXimum SOURce 1 2 FREQuency STOP frequency MINimum MAXimum SOURce 1 2 FREQuency STOP MINimum MAXimum FREQUENCY LIST MODE SOURce 1 2 LIST DWELl seconds MINimum MAXimum SOURce 1 2 LIST DWEL...

Page 336: ...MINimum MAXimum SOURce 1 2 VOLTage OFFSet MINimum MAXimum SOURce 1 2 VOLTage RANGe AUTO mode SOURce 1 2 VOLTage RANGe AUTO SOURce 1 2 VOLTage UNIT units SOURce 1 2 VOLTage UNIT SQUARE WAVE SOURce 1 2 FUNCtion SQUare DCYCle percent MINimum MAXimum SOURce 1 2 FUNCtion SQUare DCYCle MINimum MAXimum SOURce 1 2 FUNCtion SQUare PERiod seconds MINimum MAXimum SOURce 1 2 FUNCtion SQUare PERiod MINimum MAX...

Page 337: ... SOURce 1 2 FUNCtion ARBitrary POINts SOURce 1 2 FUNCtion ARBitrary SRATe sample_rate MINimum MAXimum SOURce 1 2 FUNCtion ARBitrary SRATe MINimum MAXimum FUNCtion ARBitrary BALance STATe state IQ Player option only FUNCtion ARBitrary BALance STATe IQ Player option only FUNCtion ARBitrary BALance GAIN percent MINimum MAXimum IQ Player option only FUNCtion ARBitrary BALance GAIN MINimum MAXimum IQ P...

Page 338: ...TPut SYNC state OUTPut SYNC OUTPut 1 2 SYNC MODE mode OUTPut 1 2 SYNC MODE OUTPut 1 2 SYNC POLarity polarity OUTPut 1 2 SYNC POLarity OUTPut SYNC SOURce channel OUTPut SYNC SOURce OUTPut TRIGger state OUTPut TRIGger OUTPut TRIGger SLOPe slope OUTPut TRIGger SLOPe OUTPut TRIGger SOURce channel OUTPut TRIGger SOURce Pulse Configuration Commands SOURce 1 2 FUNCtion PULSe DCYCle percent MINimum MAXimu...

Page 339: ...nds AM SOURce 1 2 AM DEPTh depth_in_percent MINimum MAXimum SOURce 1 2 AM DEPTh MINimum MAXimum SOURce 1 2 AM DSSC mode SOURce 1 2 AM DSSC SOURce 1 2 AM INTernal FREQuency frequency MINimum MAXimum SOURce 1 2 AM INTernal FREQuency MINimum MAXimum SOURce 1 2 AM INTernal FUNCtion function SOURce 1 2 AM INTernal FUNCtion SOURce 1 2 AM SOURce source SOURce 1 2 AM SOURce SOURce 1 2 AM STATe state SOURc...

Page 340: ...ce 1 2 PM SOURce SOURce 1 2 PM STATe state SOURce 1 2 PM STATe SOURce 1 2 PM DEViation deviation in degrees MINimum MAXimum SOURce 1 2 PM DEViation MINimum MAXimum SOURce 1 2 PM INTernal FREQuency frequency MINimum MAXimum SOURce 1 2 PM INTernal FREQuency MINimum MAXimum FSK SOURce 1 2 FSKey FREQuency frequency MINimum MAXimum SOURce 1 2 FSKey FREQuency MINimum MAXimum SOURce 1 2 FSKey INTernal RA...

Page 341: ...ce 1 2 SUM AMPLitude amplitude SOURce 1 2 SUM AMPLitude MINimum MAXimum SOURce 1 2 SUM INTernal FREQuency frequency MINimum MAXimum SOURce 1 2 SUM INTernal FREQuency MINimum MAXimum SOURce 1 2 SUM INTernal FUNCtion function SOURce 1 2 SUM INTernal FUNCtion SOURce 1 2 SUM SOURce source SOURce 1 2 SUM SOURce SOURce 1 2 SUM STATe state SOURce 1 2 SUM STATe Frequency Sweep SOURce 1 2 SWEep HTIMe hold_...

Page 342: ...URce 1 2 BURSt PHASe angle MINimum MAXimum SOURce 1 2 BURSt PHASe MINimum MAXimum SOURce 1 2 BURSt STATe state SOURce 1 2 BURSt STATe Trigger Setup TRIGger 1 2 TRIGger 1 2 COUNt number TRIGger 1 2 COUNt TRIGger 1 2 DELay seconds MINimum MAXimum TRIGger 1 2 DELay TRIGger 1 2 SLOPe slope TRIGger 1 2 SLOPe TRIGger 1 2 SOURce source TRIGger 1 2 SOURce TRIGger 1 2 TIMer seconds MINimum MAXimum TRIGger ...

Page 343: ...Mory COPY file1 file2 MMEMory COPY SEQuence source destination MMEMory DELete file MMEMory DOWNload DATA binary_block MMEMory DOWNload FNAMe filename MMEMory LOAD ALL filename MMEMory LOAD DATA 1 2 filename MMEMory LOAD LIST 1 2 filename MMEMory LOAD STATe filename MMEMory MOVE file1 file2 MMEMory STORe ALL filename MMEMory STORe DATA 1 2 filename MMEMory STORe LIST filename MMEMory STORe STATe fi...

Page 344: ...iguration SYSTem BEEPer IMMediate SYSTem BEEPer STATe mode SYSTem BEEPer STATe SYSTem COMMunicate ENABle state interface SYSTem COMMunicate ENABle interface SYSTem COMMunicate GPIB ADDRess address SYSTem COMMunicate GPIB ADDRess SYSTem COMMunicate LAN CONTrol SYSTem COMMunicate LAN DHCP state SYSTem COMMunicate LAN DHCP SYSTem COMMunicate LAN DNS 1 2 address SYSTem COMMunicate LAN DNS 1 2 CURRent ...

Page 345: ...tring SYSTem COMMunicate LAN TELNet WMESsage SYSTem COMMunicate LAN UPDate SYSTem COMMunicate LAN WINS 1 2 address SYSTem COMMunicate LAN WINS 1 2 CURRent STATic SYSTem DATE yyyy mm dd SYSTem DATE SYSTem ERRor SYSTem LICense CATalog SYSTem LICense DELete option_name SYSTem LICense DELete ALL SYSTem LICense DESCription option_name SYSTem LICense ERRor SYSTem LICense ERRor COUNt SYSTem LICense INSTa...

Page 346: ...URce source ROSCillator SOURce ROSCillator SOURce AUTO state ROSCillator SOURce AUTO ROSCillator SOURce CURRent Calibration CALibration CALibration COUNt CALibration SECure CODE new_code CALibration SECure STATe mode code CALibration SECure STATe CALibration SETup step_number CALibration SETup CALibration STRing quoted_string CALibration STRing CALibration VALue measurement CALibration VALue IEEE ...

Page 347: ...PERation EVENt STATus QUEStionable CONDition STATus QUEStionable ENABle enable_value STATus QUEStionable ENABle Miscellaneous ABORt SOURce 1 2 COMBine FEED source SOURce 1 2 COMBine FEED FORMat BORDer byte_order FORMat BORDer INITiate 1 2 CONTinuous state INITiate 1 2 CONTinuous INITiate CONTinuous ALL state INITiate 1 2 IMMediate INITiate IMMediate ALL SOURce 1 2 MARKer CYCLe cycle_num MINimum MA...

Page 348: ...1 2 MARKer FREQuency frequency MINimum MAXimum SOURce 1 2 MARKer FREQuency MINimum MAXimum SOURce 1 2 MARKer POINt sample_number MINimum MAXimum SOURce 1 2 MARKer POINt MINimum MAXimum SOURce 1 2 TRACk track_mode UNIT ANGLe units UNIT ANGLe Agilent 33500 Series Operating and Service Guide 347 ...

Page 349: ... if you have enabled power on state recall mode from the System menu See Instrument State Storage Output Channel Configuration Function Sine Wave Tracking Off Frequency 1 kHz Frequency Mode CW Frequency Couple State OFF Frequency Couple Mode Ratio Frequency Couple Ratio 1 Frequency Couple Offset 0 Amplitude 100 mVpp Offset 0 VDC Voltage Couple State OFF Voltage Limit State OFF Voltage Limit High 5...

Page 350: ...c State ON Sync Source CH1 Trigger Source CH1 Trigger Slope Positive Trigger State OFF Noise Bandwidth 100 kHz PRBS Data PN7 Bit Rate 1 kbps Transition 8 4E 09 Pulse Duty Cycle 10 Period 1 ms Leading Trailing Edge 10 ns Width 0 1 ms Ramp Symmetry 100 Square Duty Cycle 50 Period 1 ms Agilent 33500 Series Operating and Service Guide 349 ...

Page 351: ...F Modulation Source Internal Internal Function Sine Wave Internal Frequency 100 Hz Depth 100 DSSC OFF Frequency Modulation State OFF Modulation Source Internal Internal Function Sine Wave Internal Frequency 10 Hz Deviation 100 Hz FSK Modulation State OFF Modulation Source Internal Internal Rate 10 Hz Frequency 100 Hz 350 Agilent 33500 Series Operating and Service Guide ...

Page 352: ...dulation Source Internal Internal Rate 10 Hz Phase 180 degrees Pulse Width Modulation State OFF Modulation Source Internal Function Sine Wave Frequency 10 Hz Deviation 1 or 1E 5 sec depending on how spec ified SUM State OFF Source Internal Function Sine Wave Frequency 100 Hz Sum Amplitude 0 10 Phase Control Agilent 33500 Series Operating and Service Guide 351 ...

Page 353: ...e OFF Gate Polarity Normal Mode Triggered Cycles 1 Period 10 ms Phase 0 degrees Marker Cycle 2 Sweep State OFF Spacing Linear Start Freq 100 Hz Stop Freq 1 kHz Center Freq 550 Hz Span 900 Hz Marker Freq 500 Hz Sweep Time 1 sec Hold Time 0 sec Return Time 0 sec List Frequency 100 1000 550 Hz 352 Agilent 33500 Series Operating and Service Guide ...

Page 354: ...ent Trigger Con figuration Init Continuous All ON Miscellaneous Format Byte Order Normal Combine Feed NONE The following items do not relate to channel con figuration Display State ON Text Hcopy Format PNG Remote Interface Communication GPIB Address 10 DHCP Enabled IP Address static 169 254 5 21 Agilent 33500 Series Operating and Service Guide 353 ...

Page 355: ...net Prompt 335xxx where xxx is the last three digits of the model number Telent Welcome Message Welcome to Agilent s 335xxx Waveform Gen erator where xxx is the last three digits of the model number WINS primary server 0 0 0 0 WINS secondary server 0 0 0 0 System Beep State ON Power Down Recall OFF LXI Identify OFF Calibration Calibration State Secured The instrument uses LAN port 5024 for SCPI Te...

Page 356: ...rument responds with 0 No error l The front panel reports errors from all I O sessions and the global error queue To read the error queue from the front panel press the System button then the Help softkey Then select View remote command error queue in the Help menu l Error conditions are also summarized in the Status Byte Register See Status Subsystem Introduction for details l The interface speci...

Page 357: ...Media full 252 Missing media 250 Mass storage error file read write error 241 Hardware missing 241 Hardware missing Command not valid in one channel instrument 240 Hardware error GPIB interface failed 230 Data corrupt or stale 222 Data out of range AM depth amplitude arb frequency arb period burst count burst count limited by length of burst burst period burst period limited by length of burst can...

Page 358: ... limit low level limited by low soft limit low limit value limited by low signal level marker confined to burst cycles marker confined to sweep span offset period PRBS edge time PRBS edge time limited by bit rate pulse duty cycle limited by period pulse edge at maximum pulse edge at minimum pulse edge time pulse edge time limited by duty cycle pulse edge time limited by period pulse edge time limi...

Page 359: ...ped to upper limit trigger delay trigger delay clipped to lower limit trigger delay clipped to upper limit trigger delay limited by length of burst trigger timer clipped to lower limit trigger timer clipped to upper limit trigger timer limited by length of burst user frequency USER setting only valid for channel 1 value clipped to dwell time s lower limit value clipped to dwell time s upper limit ...

Page 360: ...d due to output load or limits both edge times decreased due to period both edge times decreased due to pulse duty cycle both edge times decreased due to pulse width BPSK turned off by selection of other mode or modulation burst count reduced to fit entire burst Burst mode has caused output phase to be set to zero degrees burst period increased to fit entire burst burst phase inapplicable for arbs...

Page 361: ...anged for pulse function frequency forced duty cycle change frequency made compatible with burst mode frequency reduced for ramp function frequency reduced for user function FSK turned off by selection of other mode or modulation Function or modulation source cannot be USER Tracking disabled Function selection limited the FSK frequency Gated output not available for gated burst Output mode changed...

Page 362: ...not able to list this function not able to modulate arb modulation turned off not able to modulate DC modulation turned off not able to modulate noise modulation turned off not able to modulate PRBS modulation turned off not able to modulate this function not able to sweep arb sweep turned off not able to sweep DC sweep turned off not able to sweep noise sweep turned off not able to sweep PRBS swe...

Page 363: ...odulation source trailing edge decreased due to leading edge trailing edge time decreased due to period trailing edge time decreased due to pulse width trailing edge times decreased due to pulse duty cycle trigger delay reduced to fit entire burst trigger output connector used by BPSK trigger output connector used by burst gate trigger output connector used by FSK trigger output connector used by ...

Page 364: ...14 Not allowed Instrument locked by another I O session 521 Communications input buffer overflow 522 Communications output buffer overflow 532 Not able to achieve requested resolution 540 Cannot use overload as math reference 550 Not able to execute command in local mode 560 No valid external timebase 561 High voltage present on input channel 570 DDS Processor is not responding 580 Reference phase...

Page 365: ...urity defeated by hardware jumper 702 Calibration error calibration memory is secured 703 Calibration error secure code provided was invalid 704 Calibration error secure code too long 705 Calibration error calibration aborted 706 Calibration error provided value is out of range 707 Calibration error computed correction factor out of range 707 Calibration error signal input is out of range 708 Cali...

Page 366: ...s 787 Not able to delete the currently selected active arb waveform 787 Specified arb not loaded in waveform memory 788 Could not load specified arb Loaded Built in default arb 791 Firmware update error unable to begin download 792 Firmware update error programming operation failed 793 Firmware update error data record invalid character 794 Firmware update error data record length mismatch 795 Fir...

Page 367: ... of memory 881 Arb Values are out of range 882 Arb Segment too small 883 Arb Error in closing file 884 Arb Seek too large 885 Arb Arb file cannot be stored as sequence file 886 Arb Sequence file cannot be stored as arb file 887 File name error not a valid extension 888 Arb Could not create built in arb directory 889 Arb Could not copy built in arb 890 enable combine forced tracking off 891 enable ...

Page 368: ...ct your nearest Agilent Technologies Service Center They will arrange to have your unit repaired or replaced and can provide warranty or repair cost information where applicable Ask the Agi lent Technologies Service Center for shipping instructions including what components to ship Agilent recommends that you retain the original shipping carton for return shipments Repackaging for Shipment To ship...

Page 369: ...sassemble instruments only in a static free work area l Use a conductive work area to reduce static charges l Use a conductive wrist strap to reduce static charge accumulation l Minimize handling l Keep replacement parts in original static free packaging l Remove all plastic foam vinyl paper and other static generating materials from the immediate work area l Use only anti static solder suckers Su...

Page 370: ...ystems that allow Agilent to provide calibration at competitive prices Calibration Table of Contents The section includes the following sections Calibration Overview l Calibration Interval l Adjustment is Recommended l Time Required for Calibration l Automating Calibration Procedures l Recommended Test Equipment l Test Considerations l Calibration Count l Calibration Message Calibration Security P...

Page 371: ...h impedance Adjustment 24 dB Range Flatness Adjustment 8 dB Range Flatness Adjustment Self Calibration Adjustment Channel 2 Output Impedance Adjustment Channel 2 AC Amplitude high impedance Adjustment Channel 2 24 dB Range Flatness Adjustment Channel 2 8 dB Range Flatness Adjustment Channel 2 Calibration Errors 370 Agilent 33500 Series Operating and Service Guide ...

Page 372: ...ument can also be automatically calibrated under computer control With computer control you can perform the complete calibration procedure and performance verification tests in approximately 30 minutes one channel or 60 minutes two channels once the instrument is warmed up see Test Considerations Automating Calibration Procedures You can use programmable test equipment to automate the complete ver...

Page 373: ...cope 1 GHz 4 Gs second 50 Ω input termination Agilent MSO6104A T Adapter BNC m to dual banana f Agilent 11001 60001 Q P T Adapter N type m to BNC m Agilent E9623A Q P T Cable 2 required Dual banana m to dual banana m Agilent 11000 60000 Q P T Cable RG58 BNC m to dual banana Agilent 11001 60001 Q P T Cable RG58 BNC m to BNC m Agilent 11170C Q P T Q Quick Verification P Performance Verification T Tr...

Page 374: ...ssage You can store one message of up to 40 characters in calibration memory For example you can store the date when the last calibration was performed the date when the next calibration is due the instrument s serial number or con tact information for your calibration experts Unsecure the instrument to record a calibration message You can read the message from either the front panel or over the r...

Page 375: ...operation If you secure the instrument from the front panel you must use that same code to unsecure it from the remote interface l This setting is non volatile it will not be changed by power cycling or RST l Security code rules Unquoted string up to 12 characters Must start with letter A Z May contain letters numbers 0 9 and underscores l Front Panel l SCPI CALibration_SECurity STATe Unsecure Ins...

Page 376: ... disabled Calibration security is unlocked with password is reset to its factory default value Calibration count is incremented because jumper was connected during power up and error message 701 Calibration error security defeated by hardware jumper is issued Nonvolatile calibration storage is updated to reflect these operations 6 Turn off the instrument remove temporary short and remove power cor...

Page 377: ... calibration procedure l Performance Verification Tests l Internal Timebase Verification l AC Amplitude high impedance Verification l DC Offset Voltage Verification l 8 dB Range Flatness Verification l 24 dB Range Flatness Verification 376 Agilent 33500 Series Operating and Service Guide ...

Page 378: ...heck points designated by a Q verifies performance for normal accuracy drift mechanisms This test does not check for abnormal component failures To perform the quick performance check do the following 1 Perform a complete self test 2 Perform only the performance verification tests indicated with the letter Q 3 If the instrument fails the quick performance check adjustment or repair is required Per...

Page 379: ...nated at 50 Ω 2 Set the instrument to the output described in the table below and measure the output frequency Be sure the instrument output is enabled Use Waveform Generator Measurement Function Amplitude Frequency Nominal Error Q Sine Wave 1 00 Vpp 10 000 000 0 MHz 10 000 Mhz 10 Hz With the optional high stability OCXO timebase the measurement error is 1 Hz 3 Compare the measured value to the te...

Page 380: ...004707 Vrms Q High Z Sine 1 000 kHz 400 0 mVrms 0 400 Vrms 0 004707 Vrms Q High Z Sine 1 000 kHz 1 00 Vrms 1 00 Vrms 0 010707 Vrms Q High Z Sine 1 000 kHz 2 500 Vrms 2 5 Vrms 0 025707 Vrms Q High Z Sine 1 000 kHz 7 000 Vrms 7 0000 Vrms 0 070707 Vrms Based upon 1 of setting 1 mVpp 50 Ω converted to Vrms for High Z Use the following sequence to set this output a Set amplitude to 400 0 mVrms b Set DC...

Page 381: ... output voltage with the DMM Use Waveform Generator Measurement Output Setup Function Voltage Nominal Error Q High Z DC 0 0 V 0 0 VDC 0 002 VDC Q High Z DC 500 mV 0 500 VDC 0 007 VDC Q High Z DC 10 0 V 10 0 VDC 0 102 VDC Based upon 1 of setting 2 mVDC for High Z 3 Compare the measured value to the test limits shown in the table 4 Two channel instruments only connect DMM to channel 2 output and rep...

Page 382: ...ut amplitude with the AC voltmeter This will become the reference measurement Set the output impedance to 50 Ω Be sure the output is enabled Use Waveform Generator Measurement Output Load Function Amplitude Frequency Nominal Error Q 50 Ω Sine 1 200 Vrms 1 000 kHz 1 2 Vrms 0 0127 Vrms 4 Set the measured value in Step 3 to be the reference value on the AC voltmeter 5 Set the instrument to each outpu...

Page 383: ...B 50 Ω Sine 1 200 Vrms 20 00 MHz 100 3 51 0 dB 0 30 dB 50 Ω Sine 1 200 Vrms 22 00 MHz unnecessary for 20 MHz instruments 100 4 71 0 dB 0 40 dB 50 Ω Sine 1 200 Vrms 27 00 MHz unnecessary for 20 MHz instruments 100 4 71 0 dB 0 40 dB 50 Ω Sine 1 200 Vrms 30 00 MHz unnecessary for 20 MHz instruments 100 4 71 0 dB 0 40 dB 6 Compare the measured value to the test limits shown in the table 7 Two channel ...

Page 384: ...the AC voltmeter This will become the reference measurement Set the output impedance to 50 Ω Be sure the output is enabled Use Waveform Generator Measurement Output Load Function Amplitude Frequency Nominal Error Q 50 Ω Sine 0 190 Vrms 1 000 kHz 0 19 0Vrms 0 0026 Vrms 4 Set the measured value in Step 3 to be the reference value on the AC voltmeter 5 Set the instrument to each output described in t...

Page 385: ...B 50 Ω Sine 0 190 Vrms 20 00 MHz 100 3 51 0 dB 0 30 dB 50 Ω Sine 0 190 Vrms 22 00 MHz unnecessary for 20 MHz instruments 100 4 71 0 dB 0 40 dB 50 Ω Sine 0 190 Vrms 27 00 MHz unnecessary for 20 MHz instruments 100 4 71 0 dB 0 40 dB 50 Ω Sine 0 190 Vrms 30 00 MHz unnecessary for 20 MHz instruments 100 4 71 0 dB 0 40 dB 6 Compare the measured value to the test limits shown in the table 7 Two channel ...

Page 386: ... the procedures are performed 5 Select BEGIN 6 For setups that require an input adjust the value shown in the display to the measured value and select ENTER VALUE 7 The setup automatically advances to the next required value To cancel the adjustment procedure select CANCEL STEP The display will return to the setup number entry 8 When finished select END CAL 9 Optional Set a new calibration message...

Page 387: ...libration constants at the end of each adjustment procedure If you lose power or otherwise abort an adjustment in progress you will only need to perform the interrupted adjustment procedure again If power is lost when the instrument is attempting to write new calibration constants to mem ory you may lose all calibration constants for the function Typically upon re applying power the instrument wil...

Page 388: ... the numbered steps minimizes the number of test equipment setups and connection changes You may perform individual adjustments as necessary but setups 1 through 7 must be performed in order before any other setup procedure Agilent 33500 Series Operating and Service Guide 387 ...

Page 389: ...ns before beginning any adjust ments 1 Press System then Instr Setup then Calibrate Enter setup number 1 and select BEGIN Setup 1 Performs the self test The Main Output is disabled during test 2 If the instrument fails any self test you must repair the instrument before continuing the adjustment pro cedures A complete self test TST takes approximately 15 seconds 388 Agilent 33500 Series Operating ...

Page 390: ...llowing table Nominal Signal Setup Frequency Amplitude 2 10 MHz 1 Vpp Output frequency is slightly less than 10 MHz 3 10 MHz 1 Vpp Output frequency is slightly more than 10 MHz 4 10 MHz 1 Vpp Output frequency is should be near 10 MHz 5 10 MHz 1 Vpp Output frequency should be 10 MHz 1 ppm Constants are stored after completing this setup 3 Using the numerical keypad or knob adjust the displayed freq...

Page 391: ...p 7 1 Connect the channel 1 output to the instrument s rear panel Modulation Input and DMM as shown below 2 Set the DMM to display 5 1 2 digits and function to DCV 3 Enter the following setup Nominal Signal Setup DC level 6 1 0 VDC 10 Calibrates the internal ADC Constants are stored after completing this setup 4 Use the numeric keypad or knob to enter the value measured on the DMM This setup requi...

Page 392: ...setup 6 and 7 a If your calibration procedures require you to verify the adjustment just made exit the calibration menu and perform DC Offset Voltage Verification b If you are making all of the adjustments and then verifying the instrument s performance continue with the next procedure in this section This setup requires approximately 15 seconds to complete Agilent 33500 Series Operating and Servi...

Page 393: ... 2 Use the DMM to make a 4 wire resistance measurement at the front panel output connector for each setup in the following table The expected measured value is approximately 50 Ω Setup 8 24 dB post attenuator range 9 0 dB range Constants are stored after completing this setup 3 Using the numeric keypad or knob adjust the displayed impedance at each setup to match the measured imped ance Select ENT...

Page 394: ...shown below 2 Use the DMM to measure the DC voltage at the front panel connector for each setup in the following table Setup Nominal Signal DC Level 10 0 0028 V Output of 72 dB range 11 0 0028 V Output of 72 dB range 12 0 007 V Output of 64 dB range 13 0 007 V Output of 64 dB range 14 0 017 V Output of 56 dB range 15 0 017 V Output of 56 dB range 16 0 044 V Output of 48 dB range 17 0 044 V Output ...

Page 395: ...ut of 32 dB High DC range 35 0 28 V Output of 32 dB High DC range 36 0 68 V Output of 24 dB High DC range 37 0 68 V Output of 24 dB High DC range Constants are stored after completing this setup 3 Using the numeric keypad or knob adjust the displayed voltage at each setup to match the measured voltage Select ENTER VALUE 4 After performing setup 37 a If your calibration procedures require you to ve...

Page 396: ... 42 10 MHz 0 192 Vrms Flatness for 24 dB range 43 20 MHz 0 192 Vrms Flatness for 24 dB range 44 25 MHz 0 192 Vrms Flatness for 24 dB range 45 30 MHz 0 192 Vrms Flatness for 24 dB range Constants are stored after completing this setup 3 Using the numeric keypad or knob adjust the displayed voltage at each setup to match the measured voltage Select ENTER VALUE 4 After performing setup 45 a If your c...

Page 397: ... Flatness for 8 dB range 51 20 MHz 1 22 Vrms Flatness for 8 dB range 52 25 MHz 1 22 Vrms Flatness for 8 dB range 53 30 MHz 1 22 Vrms Flatness for 8 dB range Constants are stored after completing this setup 3 Using the numeric keypad or knob adjust the displayed voltage at each setup to match the measured voltage Select ENTER VALUE 4 After performing setup 53 a If your calibration procedures requir...

Page 398: ...nt procedures for the one channel instrument Verification of the output specifications is recommended If you are making adjustments to a two channel instrument continue with the next procedure in this section Agilent 33500 Series Operating and Service Guide 397 ...

Page 399: ...stments on channel 2 l Self Calibration Adjustment Channel 2 l Output Impedance Adjustment Channel 2 l AC Amplitude high impedance Adjustment Channel 2 l 24 dB Range Flatness Adjustment Channel 2 l 8 dB Range Flatness Adjustment Channel 2 398 Agilent 33500 Series Operating and Service Guide ...

Page 400: ...p 54 a If your calibration procedures require you to verify the adjustment just made exit the calibration menu and perform DC Offset Voltage Verification Be sure to do this for channel 2 b If you are making all of the adjustments and then verifying the instrument s performance continue with the next procedure in this section This setup requires approximately 15 seconds to complete Agilent 33500 Se...

Page 401: ...own below 2 Use the DMM to make a 4 wire resistance measurement at the front panel output connector for each setup in the following table The expected measured value is approximately 50 Ω Setup 55 24 dB post attenuator range 56 0 dB range Constants are stored after completing this setup 3 Using the numeric keypad or knob adjust the displayed impedance at each setup to match the measured imped ance...

Page 402: ...below 2 Use the DMM to measure the DC voltage at the front panel connector for each setup in the following table Nominal Signal Setup DC Level 57 0 0028 V Output of 72 dB range 58 0 0028 V Output of 72 dB range 59 0 007 V Output of 64 dB range 60 0 007 V Output of 64 dB range 61 0 017 V Output of 56 dB range 62 0 017 V Output of 56 dB range 63 0 044 V Output of 48 dB range 64 0 044 V Output of 48 ...

Page 403: ... High DC range 82 0 28 V Output of 32 dB High DC range 83 0 68 V Output of 24 dB High DC range 84 0 68 V Output of 24 dB High DC range Constants are stored after completing this setup 3 Using the numeric keypad or knob adjust the displayed voltage at each setup to match the measured voltage Select ENTER VALUE 4 After performing setup 84 a If your calibration procedures require you to verify this a...

Page 404: ...z 0 192 Vrms Flatness for 24 dB range 90 20 MHz 0 192 Vrms Flatness for 24 dB range 91 25 MHz 0 192 Vrms Flatness for 24 dB range 92 30 MHz 0 192 Vrms Flatness for 24 dB range Constants are stored after completing this setup 3 Using the numeric keypad or knob adjust the displayed voltage at each setup to match the measured voltage Select ENTER VALUE 4 After performing setup 92 a If your calibratio...

Page 405: ...z 1 22 Vrms Flatness for 8 dB range 95 1 MHz 1 22 Vrms Flatness for 8 dB range 96 5 MHz 1 22 Vrms Flatness for 8 dB range 97 10 MHz 1 22 Vrms Flatness for 8 dB range 98 20 MHz 1 22 Vrms Flatness for 8 dB range 99 25 MHz 1 22 Vrms Flatness for 8 dB range 100 30 MHz 1 22 Vrms Flatness for 8 dB range Constants are stored after completing this setup 3 Using the numeric keypad or knob adjust the displa...

Page 406: ...f range Occurs during the ADC Adjustment setup 6 if the 1 V input voltage is too high May also occur during self calibration setup 7 Run self test to diagnose problem 710 Self calibration failed Chan n null DAC cal invalid self cal Self calibration failed Chan n offset DAC cal with attenuator invalid self cal Self calibration failed Chan n offset DAC cal no attenuator invalid self cal Error occurr...

Page 407: ...lue dB Internal null DAC calibration failed to converge during internal calibration Self calibration exited without changing self calibration constants Run self test to diagnose problem 720 Self calibration failed Chan n offset DAC cal with attenuator convergence error Self calibration failed Chan n offset DAC cal no attenuator convergence error Internal offset DAC calibration failed to converge i...

Page 408: ...nnel only one channel is shown in the block diagram is loaded into the waveform DAC and clocked by the timebase The DAC output passes through an elliptical filter before the main attenuators There are three attenuators available in the path 7 96 dB 15 91 dB and 23 87 dB The signal is applied to the output amplifier The DC offset is summed at the output amplifier A post amplifier 23 87 dB attenuato...

Page 409: ...tage and over current protection primarily from an external circuit The instrument can source very low output impedances The Sync output signal is generated as a waveform from the FPGA to the Sync DAC External trigger in and out is chassis referenced at the BNC connector but is isolated before the FPGA Modulation in is an isolated input to the A D converter The FPGA applies the modulation signal t...

Page 410: ...Block Diagram Block Diagram Agilent 33500 Series Operating and Service Guide 409 ...

Page 411: ... always on when line power is applied A regulator creates an earth referenced 3 3 V supply from the main supply and this is also always active when line power is applied A small microprocessor on the main board senses the power switch and enables all other supplies 410 Agilent 33500 Series Operating and Service Guide ...

Page 412: ...r ranty Power Supplies Verify the main power supply Shock Hazard To check the power supplies remove the instrument cover as described in Dis assembly The main power supply provides a 15 VDC 0 3 VDC supply to the main circuit board All other supplies are derived from this supply This supply is energized at all times while the line power cord is connected Test the supply at the connector to the main...

Page 413: ...board is unable to correctly program or communicate with the waveform FPGA U1005 on the main board In this case further troubleshooting is required The problem could be due to out of date firmware or a failing or unseated processor board or main board Before troubleshooting these errors ensure that the instrument firmware is up to date If the errors are still being reported continue with the follo...

Page 414: ...ard First locate LED DS1001 on the main board as shown below Cycle power on the unit wait until it fully boots and see whether the main board LED illuminates The main board LED indicates whether the FPGA was successfully programmed The following sections indicate which signal lines to probe on the main board connector J201 Main Board LED Lights up after Boot This indicates that the FPGA is program...

Page 415: ...al data lines at power up with an oscilloscope l J201 pin 23 l J201 pin 24 l J201 pin 26 l J201 pin 32 If all of the above SPI lines show activity during FPGA programming then the main board is the most likely cause of the failure Otherwise the processor board is the most likely cause 10 MHz Out If the power supplies are functional and self test passes check the 10 MHz output at the rear panel Thi...

Page 416: ...ring the procedure When self test completes either Self test Passed or Self test Failed appears on front panel Self test error mes sages are described in detail below Execute self test before any verifications or adjustments To Run Self Test Remove all input connections to instrument before self test Cycle power to run power on self test Remote I O Execution 1 Connect to instrument using remote in...

Page 417: ...he nominal voltage range Processor Board 603 Self test failed main CPU error accessing boot env Processor wasn t able to access its boot parameters from flash possibly due to out of date firmware or a problem on the processor board Processor Board 604 Self test failed front panel processor ping failed Processor board tried to read front panel revision code and received a 0 possibly due to un progr...

Page 418: ...due to FPGA fail ures tests 605 608 invalid FPGA image or malfunctioning security device U1007 Self test exits on this failure 609 Self test failed waveform FPGA security check failed Waveform FPGA U1005 failed internal security check possibly due to FPGA fail ures tests 605 608 invalid FPGA image or malfunctioning security device U1007 Self test exits on this failure 610 Self test failed main PLL...

Page 419: ...veform DAC U1801 or U1501 not providing correct output Gain idx of 1 references POS voltage test gain idx of 2 references NEG voltage test Main Board 630 Self test failed Chan n sub attenuator failure 0dB Trim DAC inside waveform DAC U1801 or U1501 not providing correct output at 0 dB If this fails test 631 will not be executed Main Board 631 Self test failed Chan n sub attenuator 7 00 to 0 00 dB ...

Page 420: ...ator test 655 is not executed Main Board 655 Self test failed Chan n 8 dB pre attenuator path too low too high Self test failed Chan n 16 dB pre attenuator path too low too high Self test failed Chan n 24 dB pre attenuator path too low too high Self test failed Chan n 24 dB post attenuator path too low too high Specified attenuator relay malfunctioning or associated circuitry not providing expecte...

Page 421: ...annel models 2090 0977 Display 1250 3569 Front Panel BNCs 33521 80002 Front Panel for 33521A 33522 80002 Front Panel for 33522A 33520 80001 Front Panel for 335xxB one channel models 33520 80002 Front Panel for 335xxB two channel models 33522 66502 Front Panel Board 1252 8483 USB Connector 1253 4669 LAN Connector 53200 61608 Line Filter 33250 68501 Fan 1420 0356 Battery in Front Panel CR2032 53200 ...

Page 422: ...connectors l 7 mm nut driver rear panel GPIB connector Only qualified service trained personnel who are aware of the hazards involved should remove instrument covers Always disconnect the power cable and any external circuits before removing the instrument cover Some circuits are active and have power applied even when the power switch is turned off General Disassembly Procedure 1 Turn off the pow...

Page 423: ... performed without further disassembly Troubleshooting and service pro cedures that require power be applied can be performed with the instrument in this state of disassembly SHOCK HAZARD Only service trained personnel who are aware of the hazards involved should remove the instrument covers Dangerous voltages may be encountered with the instrument cov ers removed 422 Agilent 33500 Series Operatin...

Page 424: ... disengage the connector Lift processor board out 2 Remove front panel assembly Remove T15 screw holding the main board Press latch on left side of front panel and latch in power supply cover on right side of front panel Push sides of metal chassis toward center to disengage studs on sides of front panel assembly Gently pull front panel assembly straight off chassis Note that front panel Agilent 3...

Page 425: ...er supply connector from main board Disconnect GPIB and Oscillator In rib bon cables Disconnect fan power cable from main board Loosen and remove nuts securing Modulation In and Ext Trig BNC connector to rear panel Remove screw below GPIB board securing main board to chassis Slide main 424 Agilent 33500 Series Operating and Service Guide ...

Page 426: ... screw securing power supply cover to chassis Slide power supply assembly toward front of instrument and remove Always re attach green ground wire to power supply before operating instrument 5 The remaining assemblies can be removed from the chassis if needed Front Panel Disassembly 1 Pull the knob straight off Remove six T8 screws securing front panel bracket to front panel assembly Lift out brac...

Page 427: ...ly 2 Disconnect display ribbon cable from front panel board Remove T8 screws securing front panel board to front panel assembly Lift out printed circuit board 426 Agilent 33500 Series Operating and Service Guide ...

Page 428: ...Disassembly 3 All additional front panel assemblies can now be lifted out of front panel housing Agilent 33500 Series Operating and Service Guide 427 ...

Page 429: ......

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