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2-1

IM 704610-01E

Explanation of Functions

Chapter 2

Explanation of Functions

2.1

System Configuration and Block Diagram

System Configuration

Measurement input signal

PC
• Remote control
• Data acquisition and analysis

Communication (GP-IB/Ethernet)

Input inhibit signal
Input external arming signal

DC output of jitter ratio
DC output of the RF signal
voltage level
Monitor output of the RF signal
Monitor output of the equalized RF signal
Output of the data signal (binarized signal)
Output of the clock signal

RF signal

TA220

Содержание TA220

Страница 1: ...Digital Jitter Meter IM 704610 01E 3rd Edition ...

Страница 2: ...ing YOKOGAWA products YOKOGAWA provides registered users with a variety of information and services Please allow us to serve you best by completing the product registration form accessible from our homepage http www yokogawa com tm PIM 103 01E ...

Страница 3: ...lay contents illustrated in this manual may differ slightly from what actually appears on your screen Every effort has been made in the preparation of this manual to ensure the accuracy of its contents However should you have any questions or find any errors please contact your nearest YOKOGAWA representative as listed on the back cover of this manual Copying or reproduction of all or any part of ...

Страница 4: ...er specification will be discontinued in December 2004 upon release of BD1 BD1 Conventional equalizer for BD D to C high speed calculation D to C jitter measurement excluding 2T Power cord D UL CSA standard power cord Part No A1006WD Maximum rated voltage 125 V Maximum rated current 7 A F VDE standard power cord Part No A1009WD Maximum rated voltage 250 V Maximum rated current 10 A Q BS standard p...

Страница 5: ...wing power cords is supplied according to the suffix codes H D Spare fuse for power supply A1114EF 1 piece User s manual IM704610 01E Option function user s manual IM704610 51E Rubber feet A9088ZM 2 sheets Optional Accessories Sold Separately The following optional accessories are also available Name Model Lot Qty Description Power fuse A1114EF 2 250 V 5 A time lag 150 MHz probe 700998 1 Input res...

Страница 6: ...e instrument may be impaired YOKOGAWA Electric Corporation assumes no liability for the customer s failure to comply with these requirements The instrument is marked with the following symbols Danger Refer to the user s manual This symbol appears on dangerous locations on the instrument which require special instructions for proper handling or use The same symbol appears in the corresponding place...

Страница 7: ...ng or Fuse Never operate the instrument if you suspect the protective grounding or fuse might be defective Make sure to check them before operation Use the Correct Fuse To prevent fire make sure to use fuses of the specified rating for voltage current and type Make sure to turn OFF the instrument and unplug the power cord before replacing the fuse Never short the fuse holder Do Not Operate Near Fl...

Страница 8: ... marking requirement This marking indicates that you must not discard this electrical electronic product in domestic household waste Product Category With reference to the equipment types in the WEEE directive Annex 1 this product is classified as a ÅgMonitoring and Control instrumentationÅh product Do not dispose in domestic household waste When disposing products in the EU contact your local Yok...

Страница 9: ...ting procedures in Chapter 3 through 12 the following headings and symbols are used to distinguish the procedures from their explanations Procedure This subsection contains the operating procedure used to carry out the function described in the current chapter All procedures are written with inexperienced users in mind experienced users may not need to carry out all the steps Explanation This subs...

Страница 10: ...ent LED it displays numbers alphabetical characters and mathematical operators in a simplified form as shown below Some characters are not used at all by the instrument 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T Lowercase c Lowercase h U V W X Y Z Exponent Conventions Used in This Manual ...

Страница 11: ...witch ON and OFF Connecting cables and a probe Measurement function and polarity Input impedance and input coupling Equalizer Trigger mode and slice level Gate time Arming Block sampling Inhibit Other as needed DC output of jitter ratio DC output of RF signal voltage level Other signal output Section 3 2 Section 3 3 Section 3 4 Section 3 5 Section 3 6 Section 4 1 Section 4 2 Section 4 3 Section 4 ...

Страница 12: ...3 1 Handling Precautions 3 1 3 2 Installing the Instrument 3 3 3 3 Connecting the Power Supply 3 6 3 4 Turning the Power Switch ON and OFF 3 7 3 5 Connecting Cables and a Probe 3 8 3 6 Correcting the Probe Phase 3 9 3 7 Entering Numerical Values 3 11 Chapter 4 Measurement Condition Settings 4 1 Selecting the Measurement Function and Polarity 4 1 4 2 Selecting the Input Impedance and Input Coupling...

Страница 13: ...ifications 9 1 9 2 Connecting to the Network 9 2 9 3 Entering the TCP IP and Timeout Settings and Confirming the MAC Address 9 3 Chapter 10 Communication Command 10 1 Program Format 10 1 10 1 1 Syntactic Symbols 10 1 10 1 2 Messages 10 1 10 1 3 Commands 10 3 10 1 4 Response 10 5 10 1 5 Data 10 5 10 1 6 Synchronization with the Controller 10 7 10 2 Commands 10 9 10 2 1 Command List 10 9 10 2 2 CALC...

Страница 14: ...ss Setting of the Numerical Value Display Display 2 Green 11 5 11 4 Turning the Key Lock ON and OFF 11 6 Chapter 12 Troubleshooting and Maintenance 12 1 Malfunction First Investigate 12 1 12 2 Error Code Description and Corrective Actions 12 2 12 3 Adjusting the Zero Position of the Needle 12 5 12 4 Self Diagnostics Self Test 12 6 12 5 Calibration Changing the Factory Default Calibration Values 12...

Страница 15: ...ay Displays entered or selected numerical settings and other setting items Display 2 dot matrix green LED display Displays entered or selected numerical settings and other setting items KEY LOCK indicator Illuminates when key lock is ON section 11 4 Determination indicator Displays jitter ratio determination results section 5 3 Rear Panel Ethernet port section 9 2 External arming signal input term...

Страница 16: ...ress this key during self testing to execute the meter test SHIFT ARMING DELAY key section 4 6 Sets the arming delay when external arming is selected INHIBIT key sections 4 8 and 12 4 Sets inhibit Also you can press this key during self testing to execute the board test SHIFT INHIBIT BLOCK key section 4 7 Sets up block sampling POLARITY key section 4 1 Selects the polarity of the signal to be meas...

Страница 17: ...dicator RECALL key section 6 2 Recalls setup info stored in the internal memory and replaces with the current settings SHIFT RECALL STORE key section 6 1 Stores setup information to the internal memory SHIFT ENTER UTILITY key chapter 7 and sections 8 4 9 3 11 2 and 11 3 Use to set signal output select the communication interface enter a GP IB address or TCP IP setting confirm the MAC address set t...

Страница 18: ...t signal PC Remote control Data acquisition and analysis Communication GP IB Ethernet Input inhibit signal Input external arming signal DC output of jitter ratio DC output of the RF signal voltage level Monitor output of the RF signal Monitor output of the equalized RF signal Output of the data signal binarized signal Output of the clock signal RF signal TA220 ...

Страница 19: ...by the autoslice slicer circuit Binarized data signals are input to the PLL circuit PLL and the clock signal is regenerated Data and clock signals are input to the measurement computation circuit where the D to C time phase difference is measured and jitter values are calculated RF signals prior to binarization that are processed in the equalizer are output from the equalized RF signal monitoring ...

Страница 20: ...lse times Ta and Tb pulse width T can be divided into integer multiples of the measurement clock time N times t0 and fractional pulse times Ta and Tb as follows T N t0 Ta Tb The instrument converts the fractional pulse times on the starting and ending sides Ta and Tb to voltage values By then converting those voltages to digital values using 7 bit A D conversion the fractional pulse widths can be ...

Страница 21: ...the standard deviation σ of the values making up the histogram is calculated This standard deviation σ is the pulse width jitter The percentage calculated when dividing the standard deviation σ by the difference T in the upper and lower limits of the pulse width is called the pulse width jitter ratio The time averaged value of the measured pulse width signal is the pulse width average value AVE T ...

Страница 22: ... signal The time averaged value of the measured phase difference signal is the D to C average value AVE σ Σ Xi AVE 2 Pi n i 1 AVE Σ Xi Pi n i 1 n Number of bins histogram lines of the histogram Xi Class value of each bin Pi Relative frequency Ratio of frequency Xi of a single bin with respect to the total number of samples T Period of the clock signal differs depending on the signal being measured...

Страница 23: ...When the pulse width of the data signal is 2T or less the phase difference before and after that data signal is not measured The method for determining the jitter σ jitter ratio σ T and average value is the same as that for normal D to C jitter D to C jitter excluding 2T cannot be measured by products with suffix code BDS Data signal Clock signal Measured 2T 3T 3T 3T 3T 4T 2T Not measured Not meas...

Страница 24: ...ariations for example a range from 2 5T to 3 5T Input Impedance For procedures see section 4 2 To attenuate the measured signal and reduce distortions you must adjust to the output impedance of the signal under test You can select an input impedance for the measurement input terminal of 50 Ω or 1 MΩ Input Coupling For procedures see section 4 2 Measurement of only the amplitude AC component of the...

Страница 25: ...easure the pulse width and phase difference is a data signal binarized from the RF signal applied to the measurement input terminal Using the slicer of the TA220 the RF signal is binarized by setting the portion of the signal that is greater than the given slice level to the positive side and the portion that is less than the slice level to the negative side The slice level changes depending on th...

Страница 26: ...vated when the polarity or slope is set to Manual mode The RF signal is binarized using a specified slice level The specified slice level RF signal Data signal Center value of the amplitude Trigger is activated when the polarity or slope is set to Auto manual mode The RF signal is binarized using the slice level detected with the auto slice function superimposed by a specified offset slice level T...

Страница 27: ...rigger External Arming Arming is activated when an external signal arming source is applied to the external arming input terminal You can also select whether the rising or falling edge is used to activate the arming Arming Delay When using external arming you can delay the start of the measurement by a given amount of time delay time after arming occurs Block Sampling For procedures see section 4 ...

Страница 28: ...measurement is indicated below Relation between the Inhibit Signal and Gating S1 S2 S3 S4 S5 Data signal Not measured Gate Inhibit Inhibits measurement Gate open Starts measurement Resumes measurement Relation between the Inhibit Signal Gating and External Arming S1 S2 S3 S4 S5 Data signal Not measured External arming Gate Inhibit Inhibits measurement Gate open Starts measurement Resumes measureme...

Страница 29: ...ange and the results are updated every 2 ms The D to C high speed calculation function is not available on products with suffix code BDS 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms Gate time of 8 ms Gate time of 8 ms Gate time of 8 ms Outputs the moving summed result every 2 ms The summing time is the same as the gate time AGC Automatic Gain Control Amplifier For procedures see section 4 9 I...

Страница 30: ...played numerically on Display 1 Display 1 is a red 7 segment LED Display 1 is used for settings error codes and the firmware version Character and Numerical Display of Setting Parameters and Values Setting parameters are shown using alphabetical characters on Display 2 Display 2 is a green dot matrix LED For certain setting parameters you can display the numerical measured result on Display 1 whil...

Страница 31: ... fluctuates due to instability in the measured jitter this function suppresses the degree of fluctuation You can set the number of measured values average coefficient to be averaged in the range from 1 to 10 The moving averaged jitter ratio is shown on the numerical display and analog meter and sent to DC output Time Time A B C D E F a b c G Measured jitter ratio Jitter ratio after moving average ...

Страница 32: ...ts and 0 VDC is output when the upper limit is exceeded or the lower limit is not reached DC Output Filter for Voltage Levels A moving average can be taken of the RF signal voltage levels When the DC output fluctuates due to instability in the RF signal voltage levels this function suppresses the degree of fluctuation You can set the number of measured values average coefficient to be averaged in ...

Страница 33: ...n of all setup information except the following Network related set up information Setup information stored to the internal memory Digital display green brightness setting Digital Display Green Brightness Setting For procedures see section 11 3 You can change the brightness of Display 2 Key Lock For procedures see section 11 4 You can disable the front panel key operation Adjusting the Zero Positi...

Страница 34: ...trument turn the power OFF immediately and remove the power cord from the outlet If such an irregularity occurs contact your YOKOGAWA dealer Turn OFF the Instrument If the Cooling Fan Stops If error code 906 appears on the display the cooling fan is stopped Immediately turn OFF the power switch From the rear panel check for and remove any foreign object that may be obstructing the cooling fan If e...

Страница 35: ... input connector Doing so could cause damage to the instrument s internal circuitry Unplug During Periods of Extended Non Use When not using the instrument for a long period of time turn OFF the power switch and remove the power cord from the outlet Moving the Instrument Remove the power cord and all connected cables before moving the instrument The instrument weighs approximately 5 kg Always carr...

Страница 36: ...If you are installing the instrument on a slippery surface attach the rubber feet two pieces included in the package to the hind feet Place the instrument on a flat even surface Note The specification of the meter presumes that the TA220 is installed horizontally and that the meter is in the vertical position The specifications of the meter cannot be satisfied when the instrument is installed with...

Страница 37: ... Use the instrument in the following environment Ambient temperature 5 to 40 C However in order to obtain highly accurate measurements operate the instrument in the 23 5 C temperature range Ambient humidity 20 to 80 RH No condensation should be present However in order to obtain highly accurate measurements operate the instrument in the 50 10 RH range Note Condensation may occur if the instrument ...

Страница 38: ...ive amount of soot dust salt and iron are present Near locations where water oil or chemicals can splatter It is recommended that you store the instrument in an environment of 5 to 40 C 20 to 80 RH whenever possible Rack Mounting When rack mounting the TA220 use the rack mount kit that is sold separately For the procedure on attaching the TA220 to a rack see the User s Manual included in the rack ...

Страница 39: ...eatures of the instrument will be rendered ineffective Use an AC outlet that complies with the power cord provided and securely connect the protective grounding Do not use the instrument if no such compatible power outlet and proper protective grounding are available Connecting the Power Cord 1 Check that the power switch is turned OFF 2 Connect the power cord plug to the power connector on the re...

Страница 40: ...nected That the supply voltage from the power outlet is correct See section 3 3 That the power fuse has not blown See section 12 8 That if necessary the setup information on the instrument is initialized Two initialization methods can be used See section 11 2 If the instrument still fails to power up when the power switch is turned ON after checking these points the instrument is most likely malfu...

Страница 41: ...C Number of channels 1 RF input Input impedance Select 1 MΩ 20 pF typical value or 50 Ω Maximum input voltage 5 Vrms Ground Connect to the case ground The typical value is a representative or standard value It is not strictly guaranteed CAUTION Do not apply a voltage that exceeds the maximum input voltage to the input terminal Doing so can cause damage to the input section Note When connecting the...

Страница 42: ... This may cause damage to the input section Do not short or apply an external voltage to the probe compensation signal output terminal of the DL1740 or the RF signal monitor output terminal of the TA220 This may cause damage to the internal circuitry Check that the TA220 and DL1740 are turned OFF and connect them as shown in the figure 1 Connect a BNC cable from the RF signal monitor output termin...

Страница 43: ... frequencies will not be uniform Consequently a correct waveform cannot be input to the measurement circuit of the TA220 The input capacity of each probe is not necessarily all the same Therefore the probe has a variable capacitor trimmer that allows the input capacity to be adjusted This adjustment is called phase correction When using the probe for the first time make sure to perform phase corre...

Страница 44: ... values is blinking 2 Press an arrow or key to select the digit you wish to change The numerical value or underbar at the selected digit blinks 3 Turn the rotary knob to set the value within the range of each item As the value of the selected digit is increased the next higher digit is also increased accordingly Likewise as the value of the selected digit is decreased the next lower digit is also ...

Страница 45: ...ON then select D to C or E2T The D to C or E2T indicator illuminates If you select D to C the normal data to clock phase difference jitter will be measured If you select E2T the data to clock phase difference jitter excluding 2T will be measured E2T cannot be selected on products with suffix code BDS Selecting the Polarity 2 Press POLARITY and select or both and The indicator of the selected item ...

Страница 46: ...ng slope of the pulse width Measures the negative side from the falling slope to the next rising slope of the pulse width Upper and Lower Limit of the Pulse Width to be Measured The limit values can be set in the following range when the measurement function is set to pulse width jitter Setting range for pulse width lower limit 0 00 to 998 99 ns in steps of 0 01 ns Setting range for pulse width up...

Страница 47: ...ser to enter numerical setting values using the knob and arrow keys For details on this procedure see section 3 7 Selecting the Input Impedance Press IMPEDANCE and select 50 Ω or 1 MΩ The indicator of the selected item illuminates Selecting the Input Coupling 1 Press SHIFT IMPEDANCE COUPLE Couple appears in Display 2 and dC or AC appears in Display 1 2 Turn the rotary knob to select dC or AC Expla...

Страница 48: ...cedure B To enter the boost amount using the procedure below you must turn display of Disp EQ ON when selecting numerical value display see section 5 2 You can set the boost amount while viewing the measured jitter ratio on Display 1 1 Press MEASURE to display the EQ in Display 2 2 Press EQUALIZER and select CONV The CONV indicator illuminates At the same time the boost amount is shown on Display ...

Страница 49: ... step 2 Setting the Slice Level 2 Press SHIFT TRIG LEVEL TrigLv appears in Display 2 and the setting value appears in Display 1 3 Use rotary knob to set the slice level Explanation When measuring the pulse width or phase difference of a single pulse you can select the level of the data signal at which to make the measurement activate the trigger Slice level refers to the signal level used to binar...

Страница 50: ...el set in manual mode exceeds 1 V or is less than 1 V it will change to 1000 or 1000 when AGC or the equalizer are turned ON When the measurement function is PW AGC is OFF and the equalizer is OFF you cannot change to a trigger mode other than manual mode Conversely even if you set the instrument to a different mode if the measurement function is then set to PW and AGC and the equalizer are turned...

Страница 51: ...n the following range Setting range When D to C high speed calculation see section 4 9 is OFF 1 to 1000 ms in 1 ms steps When D to C high speed calculation is ON 2 to 1000 ms in 2 ms steps Note Loading the Measured Values When D to C High Speed Calculation is OFF When the gate time is set between 100 ms and 1000 ms the measured values are acquired in units of 100 ms The measured values are acquire...

Страница 52: ...play Output Updating When the Gate Time is 8 ms Meter indication and DC output 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms Gate time of 8 ms Gate time of 8 ms Gate time of 8 ms Updates the display output of the moving summed result every 2 ms The summing time is the same as the gate time RF signal Numeric display 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms Gate time...

Страница 53: ...re see section 3 7 Selecting Auto Arming Internal Arming Press ARMING to turn OFF both the and indicators Selecting External Arming and Setting the Arming Delay Procedure A 1 Press ARMING and select or The indicator of the selected item illuminates 2 Press SHIFT ARMING DELAY ArmDelay appears in Display 2 and the setting value appears in Display 1 3 Use rotary knob to set the delay time Procedure B...

Страница 54: ...xternal arming signal Arming is activated on the falling slope of the external arming signal Arming Delay When using external arming set the delay time of arming in the range shown below Setting range 0 0 to 100 0 ms in steps of 0 1 ms External Arming Signal Input the external arming signal to the terminal labeled EXT ARM IN on the rear panel Item Description Connector type BNC Input Impedance 10 ...

Страница 55: ... range 1 to 99 in steps of 1 block Note During normal measurement the number of blocks is set to 1 For block sampling measurements other than normal measurement select a number of blocks of 2 or more The setting for the gate time and number of blocks is restricted such that maximum number of samples that can be acquired by the instrument is not exceeded Conditional expressions When D to C high spe...

Страница 56: ...he user to enter numerical setting values using the knob and arrow keys For details on this procedure see section 3 7 Turning Inhibit ON and Selecting the Polarity Press INHIBIT and select or The indicator of the selected item illuminates and inhibit is turned ON Turning Inhibit OFF Press INHIBIT to turn OFF both the and indicators Inhibit is turned OFF Explanation You can inhibit measurements by ...

Страница 57: ...TL Level Allowable input voltage range 5 to 10 V DC ACpeak Minimum input pulse width 30 ns The typical value is a representative or standard value It is not strictly guaranteed Inhibit signal input terminal Inhibit input circuit IN INHIBIT TTL 5 V 10 kΩ 74LS14 or equivalent 470 Ω CAUTION Do not apply a voltage that exceeds the allowable input voltage range to the inhibit signal input terminal This...

Страница 58: ...Ccalc AGC or DCclamp is displayed When the limit equalizer is selected see the option function user s manual IM704610 51E the PLLhold and DCclamp items are not displayed D Ccalc is not displayed on products with suffix code BDS Turning PLL Hold ON and OFF 4 Turn the rotary knob to select PLLhold 5 Press or ENTER Display 1 blinks 6 Turn the rotary knob to select on or oFF 7 Press ENTER Turning D to...

Страница 59: ...limited every 2 ms is moving summed over the gate time range and the results are updated every 2 ms The D to C high speed calculation function is not available on products with suffix code BDS AGC If undulations occur in the signal amplitude envelope the signal can be applied to the AGC circuit to normalize the fluctuations in the amplitude DC Clamp If RF signals with temporarily changing DC compo...

Страница 60: ...cted scale The jitter ratio can be read on the upper scale of the meter Displaying the Jitter and Selecting the Time Range 1 Press SCALE to select s 2 Press SHIFT SCALE SEC RANGE The currently set time range is displayed in the SEC RANGE area of Display 2 3 Turn the rotary knob to select the time range The selected time range is applied to the lower scale s on the meter and the needle moves accord...

Страница 61: ...dicates the maximum value of each scale If the trigger is not activated on the input signal and measurements cannot be made the meter needle goes off the scale beyond the scale line that indicates the maximum value of each scale If the clock cannot be regenerated by the PLL circuit during D To C measurement unLoC is displayed on Display 1 the meter needle goes beyond the scale line that indicates ...

Страница 62: ...ement of the RF signal voltage level is turned ON see 7 2 section Selecting Numerical Value Display You can select an item to be displayed when changing the display according to the procedure above Switching the Numerical Value Display 1 Press SHIFT ENTER UTILITY The Utility menu is shown on Display 2 2 Turn the rotary knob to display Display in Display 2 3 Press Disp σ T Disp σ DispAVE DispT Disp...

Страница 63: ... value of the upper five digits DispSnL Of the ten digits expressing the number of samples the value of the lower five digits Disp EQ Equalizer boost amount Display 2 and jitter ratio Display 1 DispDly Arming delay time Display 2 and jitter ratio Display 1 The number of data sampled in order to measure the jitter ratio and jitter Turning Display of Numerical Values and Characters ON and OFF If you...

Страница 64: ...ion level Displaying Determination Results The determination result is displayed in the JUDGE area on the front panel When the jitter ratio is less than or equal to the determination level set in step 2 the green GO indicator illuminates When the jitter ratio exceeds the determination level set in step 2 the red NO GO indicator illuminates If a clock signal can not be regenerated by the PLL circui...

Страница 65: ...ecting the Memory Number 1 Press SHIFT RECALL STORE Store appears in Display 2 and the memory number of the store destination appears in Display 1 2 Turn the rotary knob to select the memory number Executing the Store 3 Press ENTER The word donE is displayed for approximately one second and the setup information is stored When the storing operation is finished the display once again shows measured...

Страница 66: ... Memory Number 1 Press RECALL Recall appears in Display 2 and the memory number of the recall source appears in Display 1 2 Turn the rotary knob to select the memory number Executing the Recall 3 Press ENTER The word donE is displayed for approximately one second and the setup information is recalled Then the measurement is started using the recalled setup information Explanation Setup Information...

Страница 67: ...enu is shown on Display 2 2 Turn the rotary knob to display DC out in Display 2 3 Press DC mode DCJitHi DCJitLo DC ave Coeff α or Coeff β is displayed Selecting the DC Output Mode 4 Turn the rotary knob to select DC mode 5 Press or ENTER Display 1 blinks 6 Turn the rotary knob to select Jitt or JudGE 7 Press ENTER If you select Jitt jitter ratio DC output a DC voltage corresponding to the jitter r...

Страница 68: ...orrection Coefficient Setting the α Coefficient 4 Turn the rotary knob to select Coeff α 5 Press or ENTER Display 1 blinks 6 Use rotary knob to set the correction coefficient α 7 Press ENTER Setting the β Coefficient 4 Turn the rotary knob to select Coeff β 5 Press or ENTER Display 1 blinks 6 Use rotary knob to set the correction coefficient β 7 Press ENTER If you press MEASURE during entry of set...

Страница 69: ...nteed Jitter ratio DC output terminal DC output circuit for jitter ratio DC OUT JITTER 0 to 5 V 5 V 5 V 600 Ω Setting Menu for DC Output of the Jitter Ratio The following setting parameters are available for DC output of the jitter ratio Use the rotary knob to select the parameter you wish to set For the procedure for setting the jitter ratio determination level see section 5 3 DC mode DC output m...

Страница 70: ...e update interval of the jitter ratio DC output see the Note in section 4 5 JudGE Determination Output You can judge the measured jitter ratio against a specified value determination level If the jitter ratio is less than or equal to the determination level a DC voltage of 5 VDC is output from the jitter DC output terminal and 0 VDC is output if the jitter ratio exceeds the determination level For...

Страница 71: ...orrected jitter ratio by time T see section 2 3 The corrected jitter and jitter ratio are displayed on the numerical display and analog meter and sent to DC output For the correction equation see section 2 6 Setting Range Correction coefficient α 0 0001 to 9 9999 in steps of 0 0001 Correction coefficient β 9 999 to 9 999 in steps of 0 001 Note The DC output is 5 V when the trigger is not activated...

Страница 72: ...e before outputting DC signals following the procedures in this section 1 Press SHIFT ENTER UTILITY The Utility menu is shown on Display 2 2 Turn the rotary knob to display Level in Display 2 3 Press Lv meas Lv mode LevelHi LevelLo LvJdgHi LvJdgLo or Lv ave is displayed Turning Voltage Level Measurement ON and OFF 4 Turn the rotary knob to select Lv meas 5 Press or ENTER Display 1 blinks 6 Turn th...

Страница 73: ...ination Range Setting the Upper Limit of the Voltage Level Determination Range 4 Turn the rotary knob to select LvJdgHi 5 Press or ENTER Display 1 blinks 6 Use rotary knob to set the upper limit 7 Press ENTER Setting the Lower Limit of the Voltage Level Determination Range 4 Turn the rotary knob to select LvJdgLo 5 Press or ENTER Display 1 blinks 6 Use rotary knob to set the lower limit 7 Press EN...

Страница 74: ...Output The following setting parameters are available for DC output of the RF signal voltage level Use the rotary knob to select the parameter you wish to set Lv meas Turns voltage level measurement ON and OFF Lv mode Selects the voltage level DC output mode LevelHi Sets the upper limit of the voltage level DC output range LevelLo Sets the lower limit of the voltage level DC output range LvJdgHi S...

Страница 75: ...section 4 5 The voltage level DC output is not available when D to C high speed calculation is ON see section 4 9 The voltage level is always set to 0 V JudGE Determination Output The voltage level of the measured RF signal is determined according to a previously specified determination range 5 VDC is output from the DC voltage output terminal when the voltage level is between the upper and lower ...

Страница 76: ...ignal voltage levels When the DC output fluctuates due to instability in the measured voltage level this function suppresses the degree of fluctuation The voltage level that is moving averaged using the DC output filter is applied to both the voltage level output and the DC output The jitter ratio that is moving averaged is displayed on the numerical display and analog meter and sent to DC output ...

Страница 77: ...ignal monitor output circuit OUT MONITOR 50 Ω 5 V 5 V 50 Ω RF signal monitor output terminal Monitor Output of Equalized RF Signals When the equalizer is activated you can output the equalized RF signals from the equalized RF signal monitor output terminal EQUALIZED OUT on the rear panel When AGC is ON the RF signal passes through the AGC circuit before being output When AGC is OFF and the equaliz...

Страница 78: ...ignal at an impedance of 50 Ω The typical value is a representative or standard value It is not strictly guaranteed data signal output terminal Data signal output circuit OUT SLICED RF 5 V 5 V 50 Ω 0 4V Outputting the Clock Signal You can output the clock signal regenerated by the PLL circuit from the clock signal output terminal CLOCK OUT on the rear panel at TTL levels Item Description Connector...

Страница 79: ...response data during reception There are no queries in which the response data are created upon receiving a send request from the controller e Commands that have parameters that restrict one another See section 10 2 for examples with each command 6 Items that include function elements consisting of commands and elements with compound headers See sections 10 1 and 10 2 7 Buffer sizes that affect bl...

Страница 80: ...ported 20 The extent of the self test using the TST command The self test consists of the same tests that are performed at power up 21 The structure of the extended return status See section 10 3 22 Whether each command is processed in an overlap fashion or sequentially See section 10 1 6 Synchronizing with the Controller and section 10 2 23 The description of the execution of each command See the...

Страница 81: ...t is invalid if the instrument has been set to Local Lockout mode see section 8 5 by the controller The REMOTE indicator turns OFF Key operations are enabled The settings that existed in remote mode are maintained even when the instrument switches to local mode GP IB Interface Specifications Electrical and Mechanical Specifications Conforms to IEEE St d 488 1978 Functional Specifications See chart...

Страница 82: ...nector Multiple devices can be connected to a single GP IB system However no more than fifteen devices including the controller can be connected to a single system When multiple devices are connected they cannot share the same address Use a cable of two meters or less in length between devices The total length of all cables used should not exceed twenty meters When communicating have at least two ...

Страница 83: ...k in Display 2 3 Press Device GPIBadd DHCP IP add1 IP add2 IP add3 IP add4 NetMsk1 NetMsk2 NetMsk3 NetMsk4 Gatewy1 Gatewy2 Gatewy3 Gatewy4 MACadd1 MACadd2 MACadd3 or Timeout is displayed Selecting GP IB Communications 4 Turn the rotary knob to select Device 5 Press or ENTER Display 1 blinks 6 Turn the rotary knob to select GPib 7 Press ENTER Setting the GP IB Address 4 Turn the rotary knob to sele...

Страница 84: ... Poll Unconfigure SPE Serial Poll Enable and SPD Serial Poll Disable Other Interface Messages Two commands are available Listener and Talker Differences between SDC and DCL Of the multi line messages SDC requires talker or listener designation and DCL requires no such designation Therefore SDC works only with specific devices but DCL works with all devices on the bus Responses to Interface Message...

Страница 85: ...e When Switching from Remote to Local Mode Pressing LOCAL when the instrument is in remote mode causes the instrument to switch to local mode However this is disabled if the COMMunicate LOCKout ON command is received from the PC local lockout mode is ON If the COMMunicate REMote OFF command is received from the PC the instrument enters local mode regardless of the lockout mode REMOTE indicator goe...

Страница 86: ...lowing cables for connection UTP Unshielded Twisted Pair cable category 5 or better STP Shielded Twisted Pair cable category 5 or better When Connecting to a PC on the Network 100BASE TX compatible adapter hub or router UTP cable or STP cable straight cable Network adapter card PC TA220 When Making a 1 to 1 Connection with a PC 100BASE TX compatible adapter hub or router UTP cable or STP cable str...

Страница 87: ...d4 NetMsk1 NetMsk2 NetMsk3 NetMsk4 Gatewy1 Gatewy2 Gatewy3 Gatewy4 MACadd1 MACadd2 MACadd3 or Timeout is displayed Selecting Ethernet Communications 4 Turn the rotary knob to select Device 5 Press or ENTER Display 1 blinks 6 Turn the rotary knob to select EtHEr 7 Press ENTER Turning DHCP ON and OFF 4 Turn the rotary knob to select DCHP 5 Press or ENTER Display 1 blinks 6 Turn the rotary knob to se...

Страница 88: ...55 separated by a period as in 0 0 0 0 Of these four octets set the left most to Gatewy1 the second one from the left to Gatewy2 the third one from the left to Gatewy3 and the last one on the right to Gatewy4 5 Press or ENTER Display 1 blinks 6 Use rotary knob to set the gateway 7 Press ENTER 8 Repeat steps 4 through 7 to enter all the gateway addresses from Gatewy1 to Gatewy4 Confirming the MAC A...

Страница 89: ...sing four octets each 0 to 255 each separated by a period as in 192 168 111 24 Obtain an IP address from your network administrator The setting is automatically configured in environments using DHCP Subnet Mask You can set the mask value used when determining the subnet network address from the IP address The setting cannot be assigned unless DHCP is turned OFF Huge TCP IP networks such as the Int...

Страница 90: ...ed to the network the instrument must be power cycled If the instrument is turned ON with the DHCP function enabled without an Ethernet cable connected communications functions may not operate properly In this case turn DHCP OFF and power cycle the TA220 Network parameters such as the IP address must be specified also on the PC side For details on these parameters consult your PC s user s manual o...

Страница 91: ...e controller to the instrument is called a program message and a message received by the controller from the instrument is called a response message If a program message contains a message unit that requests a response a query the instrument returns a response message upon receiving the program message Only one response message can be sent per program message Program Messages Data that are sent fr...

Страница 92: ...nse Message Units A response message consists of a chain of one or more response message units A response message unit corresponds to a single response Response message units are delimited by a semicolon For details regarding the format of the response message unit see the next section Example Unit Unit SAMPLE INHIBIT STATE 1 POLARITY POSITIVE RMT RMT RMT stands for the response message terminator...

Страница 93: ...decreases depending on the operational status When both the transmit and receive buffers become full at the same time the instrument can no longer continue to operate This is called deadlock status In this situation operation can be restored by discarding the response message If you keep program messages including to 1024 bytes or less deadlock should not occur Also deadlock will not occur if quer...

Страница 94: ...e even with consecutive commands of the same group the common header cannot be omitted Example MEASURE FUNCTION DTOC PMT MEASURE SPEED 1 0 PMT Top Level Query A query with a question mark added to the top level command of a group appearing for the first time is called a top level query When executing a top level query all settings that can be set in that group can be received all at once With grou...

Страница 95: ...er The following categories of data exist Data Meaning Decimal A numerical value expressed as a decimal Example recalling setup information RECALL 2 Voltage Time Numbers with physical dimensions Phase Example Gate Time Percent SAMPle GATE TIME 1MS Register Register value expressed in base 2 8 10 or 16 Ex extended event register value STATUS EESE HFE Character Data Defined character string mnemonic...

Страница 96: ...adecimal Octal or Binary form Register is used when each bit of a numerical value has meaning One of the following formats can be used Format Example NRf 1 H H0F Hexadecimal value made up of the digits 0 to 9 and A to F Q Octal value made up of the digits 0 to 7 q777 B Binary value made up of the digits 0 and 1 B001100 The Register is case insensitive The response message returned is always in NR1...

Страница 97: ...command is completed If multiple sequential commands of the type of commands supported by this instrument are sent consecutively the execution of the next command is delayed until the execution of the previous command is completed Synchronization Using Sequential Commands Even for sequential commands synchronization is sometimes required for non communication related reasons such as a trigger occu...

Страница 98: ...ster The CALCulation JITTer command will not be executed until a service request is generated Using the COMMunicate WAIT command The COMMunicate WAIT command is used to wait for a specific event to occur Example STATus FILTer1 RISE STATus EESR SSTart PMT reads the response to STATus ESSR COMMunicate WAIT 1 CALCulation JITTer PMT The descriptions of STATus FILTer1 RISE and STATus EESR are the same ...

Страница 99: ...queries the current setting 10 15 DCOut JITTer PERCent Sets the upper and lower limits of the DC output of the jitter ratio or queries the current setting 10 15 DCOut JUDGe PERCent Sets the jitter ratio determination level or queries the current setting 10 15 DCOut JUDGe RESult Queries the determination result 10 16 DCOut MODE Sets the DC output mode or queries the current setting 10 16 DISPlay Gr...

Страница 100: ...rent setting 10 23 LVOut CYCLe Sets the level measurement output filter average coefficient or queries the current setting 10 23 LVOut LEVel RANGe Sets the upper and lower limit of the level measurement output range or queries the current setting 10 23 LVOut JUDGe LEVel Sets the upper and lower limit of the level measurement output determination level or queries the current setting 10 24 LVOut JUD...

Страница 101: ...ing 10 30 STATus QMESsage Sets whether or not to attach message information to the response to the STATus ERRor query or queries the current setting 10 30 STOP Group STOP Stops the measurement 10 30 STORe Group STORe Stores setup information 10 30 SYSTem Group SYSTem Queries all settings related to system 10 31 SYSTem BRIGhtness DOTMatrix Sets the brightness of the dot matrix LED display or querie...

Страница 102: ...s not valid NAN is returned in response to a query CALCulation LEVel Function Queries the level value Syntax CALCULATION LEVel Example CALCULATION LEVEL 1 236 0 Description If the statistical value is not valid NAN is returned in response to a query CALCulation AVERage Function Queries the average value Syntax CALCulation AVERage Example CALCULATION AVERAGE CALCULATION AVERAGE 1 00035E 7 Descripti...

Страница 103: ... is ON NAN is returned in response to a query CALCulation PTOPeak Function Queries the P P value Syntax CALCulation PTOPeak Example CALCULATION PTOPEAK 3 0245E 9 Description If the statistical value is not valid or if INPut HISPeed STATe D to C high speed calculation is ON NAN is returned in response to a query CALCulation SDEViation Function Queries the jitter σ Syntax CALCulation SDEViation Exam...

Страница 104: ...t command COMMunicate REMote Function Sets remote or local mode The instrument enters Remote mode when set to ON Syntax COMMunicate REMote Boolean COMMunicate REMote Example COMMUNICATE REMOTE ON COMMUNICATE REMOTE COMMUNICATE REMOTE 1 Description This is a dedicated Ethernet command COMMunicate VERBose Function Sets whether to use verbose or abbreviated form in response data for queries or querie...

Страница 105: ...rst argument is the α in y αx β The second argument is the β in y αx β DCOut JITTer PERCent Function Sets the upper and lower limits for DC output of the jitter ratio or queries the current setting Syntax DCOut JITTer PERCent PCT PCT DCOut JITTer PERCent First parameter PCT 0 01 to 100 00 in 0 01 steps Second parameter PCT 0 00 to 99 99 in 0 01 steps The first and second parameters are maximum val...

Страница 106: ... the determination level 2 Returns NOGO if the measured jitter ratio is invalid or in excess of the determination level 3 For D to C jitter measurement returns NOJUD if the clock signal was not regenerated by the PLL circuit unlock status DCOut MODE Function Switches the DC output mode or queries the current setting Syntax DCOut MODE JITTer JUDGe DCOut MODE Example DCOUT MODE JITTER DCOUT MODE DCO...

Страница 107: ...ASure Space JITTer SDEViation AVERage CONStt LEVel USNum LSNum EQ DELay PARameter JITTer Space OFF ON NRf SDEViation Space OFF ON NRf AVERage Space OFF ON NRf CONStt Space OFF ON NRf USNum Space OFF ON NRf LSNum Space OFF ON NRf EQ Space OFF ON NRf DELay Space OFF ON NRf SCALe Space R10 R20 SECond SECond Space Time STATe Space OFF ON NRf ...

Страница 108: ...the current setting Syntax DISPlay PARameter DELay Boolean Example DISPLAY PARAMETER DELAY ON DISPLAY PARAMETER DELAY DISPLAY PARAMETER DELAY 1 DISPlay PARameter EQ Function Sets the EQ display or queries the current setting Syntax DISPlay PARameter EQ Boolean Example DISPLAY PARAMETER EQ ON DISPLAY PARAMETER EQ DISPLAY PARAMETER EQ 1 DISPlay PARameter JITTer Function Sets the σ T display or queri...

Страница 109: ...s D to C or E2T HHIStogram MARKer Function Queries all settings related to markers Syntax HHIStogram MARKer Example HHISTOGRAM MARKER HHISTOGRAM MARKER LEFT 100 000E 09 RIGHT 200 000E 09 Description Cannot be set or queried when the function is D to C or E2T HHIStogram MARKer LEFT Function Sets the position of the left marker or queries the current setting Syntax HHIStogram MARKer LEFT ti me HHISt...

Страница 110: ... IMPedance Space I1M I50 POLarity Space POSitive NEGative BOTH TRIGger LEVel Space Voltage NRf MODE Space MANual AUTO BOTH EQ STATus Space OFF CONV BOOSt Space NRf AGC Space OFF ON NRf DCCLamp Space OFF ON NRf PLLHold Space OFF ON NRf PLL STATus STATe Space OFF ON NRf HISPeed The HISPeed command is not available on products with suffix code BDS ...

Страница 111: ...l Function Sets the trigger level slice level or queries the current setting Syntax INPut DATA TRIGger LEVel voltage NRf INPut DATA TRIGger LEVel When the function is DTOC NRf 1000 to 1000 in steps of 1 When the function is PulseWidth and the equalizer and AGC are OFF Voltage 2 000 V to 2 000 V in steps of 1 mV When the function is PulseWidth and the equalizer is OFF or AGC is ON NRf 1000 to 1000 ...

Страница 112: ...LAMP OFF INPUT EQ DCCLAMP INPUT EQ DCCLAMP 0 Description Cannot be set for media or functions that are not equipped with an equalizer INPut EQ PLLHold Function Sets the PLL hold function of the equalizer or queries the current setting Syntax INPut EQ PLLHold Boolean INPut EQ PLLHOLD Example INPUT EQ PLLHOLD OFF INPUT EQ PLLHOLD INPUT EQ PLLHOLD 0 Description Cannot be set for media or functions th...

Страница 113: ...etting Syntax LVOut MODE JITTer JUDGe LVOut MODE Example LVOUT MODE JITTER LVOUT MODE LVOUT MODE JITTER LVOut CYCLe Function Sets the average coefficient for level measurement output or queries the current setting Syntax LVOut CYCLe NRf LVOut CYCLe NRf 1 to 10 Example LVOUT CYCLE 1 LVOUT CYCLE LVOUT CYCLE 1 LVOut LEVel RANGe Function Sets the upper and lower limit of the level measurement output r...

Страница 114: ...ax LVOut JUDGe RESult Example LVOUT JUDGE RESULT GO Description 1 GO is returned if the result is GO 2 NOGO is returned if the result is NOGO 10 2 9 MEASure Group This group consists of commands related to measurement conditions MEASure FUNCtion Space DTOC PWIDth SPEed E2T The E2T parameter cannot be set on products with suffix code BDS MEASure Function Queries all settings related to measurement ...

Страница 115: ...YTeorder Example MEMORY BYTEORDER LSBFIRST MEMORY BYTEORDER MEMORY BYTEORDER LSBFIRST MEMory CLEar Function Clears the measured data Syntax MEMory CLEar Example MEMORY CLEAR MEMory DATaselect Function Sets the data to be transmitted or queries the current setting Syntax MEMory DATaselect MEASuredata FREQuency MEMory DATaselect Example MEMORY DATASELECT FREQUENCY MEMORY DATASELECT MEMORY DATASELECT...

Страница 116: ...teger The measured value is derived by multiplying by 97 65625 s The frequency outside of the HHISt Marker LEFT and HHISt Marker RIGHt range is 0 This command can only be used after the single measurement command sstart This command cannot be used after the start or stop command 10 2 Commands MEMory STARt Function Sets the start position of transmitted data or queries the current setting Syntax ME...

Страница 117: ...pace OFF ON NRf SIZE Space NRf GATE TIME Space INHibit STATe Space OFF ON NRf POLarity Space POSitive NEGative SAMPle Function Queries all settings related to sampling Syntax SAMPle Example SAMPLE SAMPLE ARMING DELAY TIME 0 0E 03 SAMPLE ARMING SOURCE EXTERNAL SLOPE RISE SAMPle ARMing Function Queries all settings related to arming Syntax SAMPle ARMing Example SAMPLE ARMING SAMPLE ARMING DELAY TIME...

Страница 118: ...ing Syntax SAMPle BLOCk Example SAMPLE BLOCK SAMPLE BLOCK SIZE 10 STATE 1 Description Cannot be set or queried when SAMPle ARMing SOURce arming source is AUTO SAMPle BLOCk SIZE Function Sets the number of blocks for block sampling or queries the current setting Syntax SAMPLe BLOCk SIZE NRf SAMPle BLOCk SIZE NRf no of blocks 2 to 99 Example SAMPLE BLOCK SIZE 10 SAMPLE BLOCK SIZE SAMPLE BLOCK SIZE 1...

Страница 119: ...ng Syntax SAMPLe INHibit STATe Boolean SAMPle INHibit STATe Example SAMPLE INHIBIT STATE OFF SAMPLE INHIBIT STATE SAMPLE INHIBIT STATE OFF 10 2 13 SSTart Group SSTart SSTart Function Executes single measurement Syntax SSTart Example SSTART Explanation Cannot be executed when INPut HISPeed STATe D to C high speed calculation is ON 10 2 14 STARt Group STARt 10 2 15 STATus Group This group consists o...

Страница 120: ...ears the register Syntax STATus EESR Example STATUS EESR 1 STATus ERRor Function Queries any error codes that occurred and message information top of the error queue Syntax STATus ERRor Example STATUS ERROR 113 Undefine header STATus FILTer Function Sets the transition filter or queries the current setting Syntax STATus FILTer x RISE FALL BOTH NEVer STATus FILTer x 1 to 16 Example STATUS FILTER1 R...

Страница 121: ...quency Syntax UNIT Example UNIT UNIT FREQUENCY HZ VOLTAGE V TIME S UNIT TIME Function Sets the default unit of time or queries the current setting Syntax UNIT TIME multiplier S UNIT TIME multiplier See section 10 1 Example UNIT TIME S UNIT TIME UNIT TIME S UNIT VOLTage Function Sets the default unit of voltage or queries the current setting Syntax UNIT VOLTage multiplier V UNIT VOLTage multiplier ...

Страница 122: ... error queue see section 10 3 Status Report ESE Function Sets the standard event enable register or queries the current setting Syntax ESE NRf ESE NRf 0 to 255 Example ESE 253 ESE 253 Description For details on the standard event enable register see section 10 3 Status Report ESR Function Queries the standard event register and clears the register Syntax ESR Example ESR 253 Description For details...

Страница 123: ...ister is always 0 For details on the service request enable register see section 10 3 Status Report STB Function Queries the status byte register Syntax STB Example STB 4 Description For details on the status byte register see section 10 3 Status Report TRG Function Same operation as when the SINGLE key is pressed Syntax TRG Description The multi line message GET Group Execute Trigger also perform...

Страница 124: ...10 9 8 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Status register Transition filter Extended event register 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Extended event enable register 7 6 5 4 3 2 1 0 Standard event register 7 6 5 4 3 2 1 0 Standard event enable register OR OR 7 6 ESB MAV EES EAV 1 0 Status byte MSS RQS Output queue Error queue Service requ...

Страница 125: ... can be used to confirm whether each bit of the standard event register is set to 1 or 0 This is explained in detail for each command in section 10 2 10 3 2 Status Byte Status Byte 7 6 ESB MAV EES EAV 1 0 RQS MSS Bits 0 1 and 7 Unused always 0 Bit 2 EAV Error Available Set to 1 when the error queue is not empty In other words set to 1 when an error occurs See page 10 38 Bit 3 EES Extend Event Summ...

Страница 126: ... cleared using the CLS command so bit 4 MAV of the status byte is not affected However when sending the CLS command directly after the program message terminator the output queue is also cleared 10 3 3 Standard Event Register Standard Event Register URQ 6 PON 7 5 4 3 2 1 0 CMEEXE DDEQYERQCOPC Bit 7 PON Power ON ON power Set to 1 when the instrument s power is turned ON Bit 6 URQ User Request Unuse...

Страница 127: ...ument 10 3 4 Extended Event Register The transition filter detects the changes in the condition register that indicate the internal condition of the instrument and writes the result to the extended event register 0 6 ULK 7 5 4 3 2 1 0 0 0 0 0 0 DAT 8 9 10 11 12 13 14 0 0 0 0 0 0 0 0 15 6 7 5 4 3 2 1 0 8 9 10 11 12 13 14 15 Status Register STATus CONDition Transition Filter 0 14 15 Extended Event R...

Страница 128: ...e to determine whether the output queue is empty D1 D2 D1 D2 D1 Error Queue The error queue stores the number and message of an error when it occurs For example if the controller sends an incorrect program message the error number 113 and the message Undefined header are stored in the error queue when the error is displayed The error queue can be read using the STATus ERRor query Like the output q...

Страница 129: ...s Vbib 32 bas tmctl bas tmval bas Note The tmctl bas and tmval bas modules and the sample program itself can be downloaded from our Web site under GPIB RS 232 Sample Programs in the free software area Settings on the TA220 GP IB All sample programs given in this chapter use a GP IB address of 1 for the TA220 The GP IB address can be set to 1 according to the procedure in section 8 4 Ethernet All s...

Страница 130: ...erm Dev 2 1 If ret 0 Then Call DisplayError Dev TmSetTerm InitEthernet 1 Exit Function End If ret TmSetTimeout Dev 100 If ret 0 Then Call DisplayError Dev TmSetTimeout InitEthernet 1 Exit Function End If InitEthernet 0 End Function Private Function InitGpib As Integer Dim ret As Long EOI ret TmInitialize 1 1 Dev Address 1 If ret 0 Then Call DisplayError Dev TmInitialize InitGpib 1 Exit Function En...

Страница 131: ... 8192 Then ers Illegal device ID End If MsgBox Status No Str sts Chr 13 wrn Error No Str ern Chr 13 ers Chr 13 msg vbExclamation Error Call TmFinish Dev ern TmFinish Dev Dev 1 End Sub Private Sub Command1_Click Dim sts As Integer If StartFlag 1 Then Exit Sub End If StartFlag 1 Text1 Text START List1 Clear Dummy DoEvents sts InitEthernet Initialize Ethernet If sts 0 Then Exit Sub End If sts SetPara...

Страница 132: ...eger If StartFlag 1 Then Exit Sub End If StartFlag 1 Text1 Text START List1 Clear Dummy DoEvents sts InitGpib Initialize Gpib If sts 0 Then Exit Sub End If sts SetParameter Run Sample3 Set Get Measure Parameter If sts 0 Then List1 AddItem Query 0 List1 AddItem Query 1 End If Text1 Text END StartFlag 0 End Sub Private Sub Command4_Click Dim sts As Integer If StartFlag 1 Then Exit Sub End If StartFl...

Страница 133: ...em Query 10 End If Text1 Text END StartFlag 0 End Sub Private Sub Form_Load StartFlag 0 Clear Start Flag Dev 1 Clear device id Command1 Caption Sample1 Ethernet Chr 13 Get Parameter Command2 Caption Sample2 Ethernet Chr 13 Measure Statistics Command3 Caption Sample3 GP IB Chr 13 Get Parameter Command4 Caption Sample4 GP IB Chr 13 Measure Statistics Text1 Text End Sub 10 4 Sample Program ...

Страница 134: ... sts 0 Then Call DisplayError sts msg SetParameter 1 Exit Function End If msg COMMUNICATE VERBOSE ON term Verbose ON sts TmSend Dev msg Send Command If sts 0 Then Call DisplayError sts msg SetParameter 1 Exit Function End If msg MEASURE FUNCTION DTOC term Mode DTOC sts TmSend Dev msg Send Command If sts 0 Then Call DisplayError sts msg SetParameter 1 Exit Function End If msg MEASURE FUNCTION term ...

Страница 135: ...s 1 Exit Function End If msg MEAS FUNC DTOC term Function DtoC sts TmSend Dev msg Send Command If sts 0 Then Call DisplayError sts msg GetStatistics 1 Exit Function End If msg STAT FILT1 RISE term Filter1 Rise Data Available sts TmSend Dev msg Send Command If sts 0 Then Call DisplayError sts msg GetStatistics 1 Exit Function End If msg STAT EESR term Clear Extended Event Register sts TmSend Dev ms...

Страница 136: ...lue sts TmSend Dev msg Send Command If sts 0 Then Call DisplayError sts msg GetStatistics 1 Exit Function End If sts TmReceive Dev qry 100 length Receive Query If sts 0 Then Call DisplayError sts msg GetStatistics 1 Exit Function End If temp Left qry length 1 i 0 Query i msg Space 13 Len temp temp Get Standard Deviation value msg CALC SDEV term sts TmSend Dev msg Send Command If sts 0 Then Call Di...

Страница 137: ... 69 6A 6B 6C 6D 6E 6F 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7D 7E 7F 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 ...

Страница 138: ...O indicator jitter ratio determination output UTILITY Netwrk Network device type GPIB address DHCP ON or OFF IP address Subnet mask Default gateway Timeout time setting UTILITY DC out DC output mode Upper limit of the jitter ratio output range Lower limit of the jitter ratio output range Average coefficient of the DC output filter Jitter ratio correction coefficient α Jitter ratio correction coeff...

Страница 139: ...information beforehand If the instrument is initialized to its factory default settings communication related settings Netwrk menu contents chapters 8 and 9 the brightness setting section 11 3 and stored setup information section 6 1 are also initialized The following two methods are available to perform the initialization Initialization to Factory Default Settings 1 Check that the power switch is...

Страница 140: ...O GO indicator 10 00 Store Recall memory number 0 UTILITY DC out DC output mode DC output of jitter ratio Upper limit of the jitter ratio output range 25 00 Lower limit of the jitter ratio output range 0 00 Average coefficient of the DC output filter 1 Jitter ratio correction coefficient α 1 0000 Jitter ratio correction coefficient β 0 000 UTILITY Level Voltage level measurement ON or OFF OFF Volt...

Страница 141: ...ime setting 0 UTILITY System Not initialized by the Utility menu UTILITY System init procedure Digital display green brightness setting 3 Setup information from all internal memories number 0 through 6 Not initialized by the Utility menu UTILITY System init procedure Factory Default Settings Note The communication command RST initializes all settings other than the stored setup information communi...

Страница 142: ...rase rotary knob is used in the following explanation to instruct the user to enter numerical setting values using the knob and arrow keys For details on this procedure see section 3 7 1 Press SHIFT ENTER UTILITY The Utility menu is shown on Display 2 2 Turn the rotary knob to display System in Display 2 3 Press init ROMver or LEDbrit is displayed 4 Turn the rotary knob to display LEDbrit in Displ...

Страница 143: ...K switch on the rear panel upward in the opposite direction of the arrow The key lock turns OFF and the KEY LOCK indicator on the front panel turns OFF All key operations are enabled Explanation You can disable key lock the front panel key operation However the following switch and key operations are enabled even when key lock is ON Turning ON OFF the Power Switch Turning ON OFF the KEY LOCK switc...

Страница 144: ...ise appears on the display Install the TA220 where there is no 3 2 noise Remove the noise The ambient temperature or humidity is Install the TA220 in a place that meets 3 2 outside the specifications the specifications Keys do not work Key lock is ON Turn OFF the key lock 11 4 The TA220 is in remote mode Set the TA220 in local mode 8 2 9 1 Cannot make The trigger mode slice level is not correct Se...

Страница 145: ...parator error HEADER SEPARATOR is missing 10 1 Separate headers and data with a space 112 Program mnemonic too long mnemonic is too long Check the mnemonic a string 10 2 consisting of numbers and alphabetical characters 113 Undefined header No such command Check whether the header is correct 10 2 114 Header suffix out of range The value of HEADER is not correct 10 2 Check whether the header is cor...

Страница 146: ...tion and Corrective Action Ref section 221 Setting conflict Contradictory settings are in affect 10 2 Check the relevant communication settings 222 Data out of range The value of DATA is outside the range Check the range 10 2 223 Too much data The byte length of DATA is too long 10 2 Check the length of data bytes 224 Illegal parameter value The value of DATA is inappropriate Check the range 10 2 ...

Страница 147: ...ely the power 909 No Battery The backup battery is dead Servicing is required for battery 3 4 replacement 910 Calibration data lost The calibration value is abnormal Servicing is required for calibration 912 Fatal error in Communication driver Communication driver error Service required 914 Time out occurs in Communication Communication timeout error during GP IB communications Make sure to receiv...

Страница 148: ...t the needle by turning the adjustment trimmer with a flat head screwdriver so that the needle is vertical Explanation When the zero position of the needle goes off alignment you can adjust the needle position using the adjustment trimmer located at the center of the meter View the analog meter straight on eye level perpendicular to the zero line and adjust so that the needle is exactly over the z...

Страница 149: ...nd results of each test are displayed on Display 2 model name EQ board MEMORY ETHER and so on At this point the instrument enters maintenance mode and TESTMODE is displayed on Display 2 Display and Indicator Test 3 Press MEDIA LED is displayed in Display 2 4 Turn the rotary knob to the right Confirm that the lit indicator position moves in order from the upper left to the lower right starting with...

Страница 150: ...mally Go to step 5 If FAIL is displayed this indicates a problem with the instrument s port Go to step 4 Confirming the Test Results of Each Board 4 Turn the rotary knob to display CPU b MEAS b INPUT b EQLZ b or ETHER b in Display 2 PASS or a hexadecimal value is displayed in Display 1 If PASS is displayed the board is operating normally If a hexadecimal value is displayed a problem has occurred P...

Страница 151: ...en you press a key or turn the rotary knob the corresponding characters are displayed in Display 2 If the words characters indicated in the table below are displayed the key or rotary knob is operating normally Key Rotary Knob Words Characters Displayed in Display 2 MEDIA Media FUNCTION Function ARMING Arming INHIBIT Inhibit SHIFT Shift LOCAL Local RECALL Recall ENTER Enter POLARITY Polarity TRIG ...

Страница 152: ...e section 11 2 will not set the calibration value back to factory default The operations mentioned below should be carried out in the following cases When the allowable range is exceeded in the performance test described in section 12 6 When parts of the TA220 have been replaced Before starting calibration remove all cables connected to the instrument both input and output other than the power cab...

Страница 153: ... Checking the Calibration Results 5 Turn the rotary knob to display DC CAL TV CAL or FUNC CAL in Display 2 PASS or a hexadecimal value is displayed in Display 1 If PASS is displayed the calibration results are normal If a hexadecimal value is displayed a problem has occurred Please note the hexadecimal value that is displayed The calibration items corresponding to the words displayed in Display 2 ...

Страница 154: ...anging the Factory Default Calibration Values When calibration completes normally new calibration values are obtained To apply the new calibration values you must change the factory default calibration values If you change the factory default calibration values you cannot undo the changes Please confirm that it is okay to change the factory default calibration values beforehand However once you ma...

Страница 155: ...lt Calibration Values Perform the calibration using the XCAL command After calibration the factory default calibration values are changed Care should be taken because once the factory default calibration values are overwritten you cannot undo the changes even if you execute the CAL command Calibration using the XCAL command is the same function as the calibration performed from the front panel Com...

Страница 156: ...651 YOKOGAWA The procedure for testing the trigger voltage accuracy using the recommended instruments is described below Device Connections Ensure that all instruments are turned OFF before making any connections Connect the output terminal OUTPUT of the DC voltage generator to the measurement input terminal RF input on the TA220 7651 PRO GRAMABLE DCSOUR CE YOKOGAWA TA220 DC voltage generator 7651...

Страница 157: ...nd record the voltage level at which the RF signal input indicator blinks as VL 4 Set the trigger level of the TA220 to 0 940 V 5 Increase the trigger level of the TA220 in 1 mV steps Gradually increase the trigger level and record the voltage at which the RF signal input indicator blinks as VH 6 The trigger voltage is derived by taking the average of VL and VH Confirm that this voltage is within ...

Страница 158: ...Device Connections Ensure that all instruments are turned OFF before making any connections Connect the output terminal OUTPUT of the synthesized signal generator to the measurement input terminal RF input on the TA220 Synthesized signal generator 8648A TA220 RF input OUTPUT Instrument Settings TA220 Media BD Measurement function PW Polarity Pulse width lower limit 0 00 ns Pulse width upper limit ...

Страница 159: ...the output level and frequency of the 8648A and the polarity of the data signal of the TA220 according to the table below then perform the test in a similar fashion Test Results Polarity of the data signal Frequency of the 8648A Standard Deviation σ jitter Average Measured Judgment Measured Reference value Criteria value Value 1 0 MHz 1 40 ns or less 500 10 ns 4 0 MHz 0 40 ns or less 125 2 5 ns 8 ...

Страница 160: ...aking any connections After calibrating the network analyzer connect the TA220 measurement input terminal RF input to the output terminal of the test set connected to the output terminal TEST PORT of the network analyzer After calibrating the network analyzer connect the TA220 equalized RF signal monitor output terminal EQUALIZED OUT to channel B of the network analyzer TA220 Network Analyzer 4395...

Страница 161: ...A Place the 4395A in frequency gain characteristics measurement mode then calibrate the 4395A in the 10 kHz to 50 MHz range 2 With the 87512A connected to the output terminal TEST PORT of the 4395A connect the TA220 measurement input terminal RF input to the output terminal of the 87512A and the TA220 equalized RF signal monitor output terminal EQUALIZED OUT to channel B of the 4395A 3 Set the boo...

Страница 162: ...at all instruments are turned OFF before making any connections Connect the output terminal OUTPUT of the function generator to the measurement input terminal RF input on the TA220 TA220 FG300 RF input OUTPUT Instrument Settings TA220 Media BD Measurement function PW Polarity Pulse width lower limit 0 00 ns Pulse width upper limit 999 90 ns Input impedance 50 Ω Input coupling DC Equalizer CONV boo...

Страница 163: ...quency of the FG300 according to the values in the table below 2 Measure the pulse width of the modulated signal on the TA220 and confirm that the standard deviation σ jitter is within the allowable range The average value is the reference value Test Results FG modulation frequency Standard deviation σ jitter Average Measured Judgment Measured Reference value criteria value value 1 0 Hz 1 0 ns or ...

Страница 164: ... Display 2 The phrase rotary knob is used in the following explanation to instruct the user to enter numerical setting values using the knob and arrow keys For details on this procedure see section 3 7 1 Press SHIFT ENTER UTILITY The Utility menu is shown on Display 2 2 Turn the rotary knob to display System in Display 2 3 Press init ROMver or LEDbrit is displayed 4 Turn the rotary knob to display...

Страница 165: ...ions Maximum rated voltage 250 V Maximum rated current 5 A Type Time lag Specifications UL VDE Part No A1114EF Replacement Method Replace the fuse according to the following steps 1 Turn OFF the power switch 2 Unplug the power cord from the power connector 3 Insert the tip of a flathead screwdriver into the indentation on the fuse holder located near the power connector Turn the driver in the dire...

Страница 166: ...s not cover any other items nor expendable items items which wear out The replacement period for expendable items varies depending on the conditions of use Refer to the table below as a general guideline Contact your nearest YOKOGAWA dealer for replacement parts Part Name Recommended Replacement Period Cooling fan 30000 hours Backup battery lithium battery 5 years Meter 10 years ...

Страница 167: ...er 1 0 compliant Frequency characteristics 16 5 MHz 5 8 0 3 dB gain with 100 kHz as a reference Low band cutoff frequency 10 kHz Boost amount setting range 3 0 to 9 0 dB setting resolution 0 1 dB accuracy 0 3 dB Group delay characteristics Maximum group delay deviation typical value range 3 0 MHz f 22 MHz PLL clock regeneration Synchronizable signal Basic clock is 1 7 modulation signals equivalent...

Страница 168: ...sured by products with suffix code BDS 13 3 Gate Time Arming Block Sampling and Inhibit Item Specifications Gate time When D to C high speed calculation is OFF Setting range 1 to 1000 ms setting resolution 1 ms When D to C high speed calculation is ON Setting range 2 to 1000 ms setting resolution 2 ms Arming Arming source Internal arming Arming source is a signal internal to the instrument Externa...

Страница 169: ...isplay range 0 to 99 999 ns Display resolution 0 001 ns Average display range 0 to 999 99 ns Display resolution 0 01 ns Voltage level display range 0 to 9 999 V Display resolution 0 001 V Unit ns ms s V Display 2 dot matrix green LED Item Setup menu setting parameters Meaning of numbers displayed in Display 1 Time range types when selecting time range on the meter Boost amount or delay time when t...

Страница 170: ... Range 9 999 to 9 999 resolution 0 001 Output level 0 to 5 VDC Default setting 0 2 V Output level accuracy 10 mV RF signal voltage level DC output LEVEL DC OUT Connector type BNC Output impedance 600 Ω typical value Output coupling DC Output mode Select voltage level DC output or determination output Output filter Setting range of average coefficient 1 to 10 setting resolution 1 Voltage level DC o...

Страница 171: ...he monitor equipment receives the signal at 50 Ω 13 6 Communication Interface GP IB Item Specifications Electrical and mechanical Conforms to IEEE St d 488 1978 JIS C1901 1987 specifications Functional Specifications SH1 AH1 T6 L4 SR1 RL1 PP0 DC1 DT1 C0 and E1 Protocol Compliant with IEEE St d 488 2 1992 Encoding ISO ASCII Mode Addressable mode Address 0 30 Clear remote mode Remote mode can be cle...

Страница 172: ...cted using a diode External dimensions Approx 213 W 132 H 350 D mm excluding projections Weight Approx 5 kg main unit only Cooling method Forced air Installation position Horizontal stacking prohibited Battery backup Setup information is backed up with the internal lithium battery Keylock Able to set key lock Recommended calibration 1 year interval Safety standard Complying standard EN61010 1 Over...

Страница 173: ...porary functional loss or performance drop occurs during test the functions and performance recover automatically 1 The Overvoltage Category Installation Category is a value used to define the transient overvoltage condition and includes the impulse withstand voltage regulation II applies to electrical equipment that is powered by a fixed installation such as a distribution board 2 Pollution Degre...

Страница 174: ... 80 mm of space around the instrument for ventilation If not specified the tolerance is 3 However if less than 10 mm the tolerance is 0 3 mm Units mm Rear View 20 Mounted surface Mounted surface Mounted surface Mounted surface 20 20 20 480 1 460 17 6 100 0 2 149 0 3 0 24 5 24 5 37 4 100 0 2 149 0 3 0 480 1 460 17 6 482 6 0 4 465 57 2 0 3 132 0 3 0 7 1 0 3 7 1 37 4 57 2 132 0 3 0 482 6 0 4 465 13 2...

Страница 175: ...ion command 10 1 communication using commands 2 16 compound header 10 3 connecting cables 3 8 connecting the power cord 3 6 connecting to a PC on the network 9 2 contents of the package ii conventional equalizer 4 4 correcting the probe phase 3 9 correction coefficient 2 14 7 5 COUPLE 1 2 4 3 D Page D to C 4 1 D to C high speed calculation 2 12 D to C jitter 2 5 D to C jitter excluding 2T 2 6 data...

Страница 176: ... instrument number ii interface messages 8 6 internal arming 2 10 4 10 IP address 9 5 J Page JDG LEVEL 1 3 5 5 Jitt 7 4 jitter ratio correction coefficient 7 5 jitter ratio DC output 7 4 jitter ratio DC output terminal 1 1 jitter ratio determination level 5 5 jitter ratio scale 5 1 jitter scale 5 1 JudGE 7 4 7 9 K Page key and rotary knob test 12 8 key lock 2 16 11 6 KEY LOCK indicator 1 1 KEY LOC...

Страница 177: ...le program interface 10 39 SCALE 1 3 5 1 12 6 12 9 SDC 8 6 SEC RANGE 1 3 5 1 self diagnostics 12 6 self test 2 16 12 6 serial poll 10 36 SHIFT key 1 1 shutdown operation 3 7 signal output 2 14 simple header 10 3 slice level 2 9 4 5 slicer 2 2 slope 2 4 specifications 13 1 SSTart group 10 29 standard event register 10 36 STARt group 10 29 status byte 10 35 STATus group 10 29 status register 10 37 s...

Страница 178: ...ISPlay SECond 10 19 DISPlay STATe 10 19 DISPlay 10 18 HHIStogram MARKer LEFT 10 19 HHIStogram MARKer RIGHt 10 19 HHIStogram MARKer 10 19 HHIStogram 10 19 INPut DATA COUPling 10 21 INPut DATA IMPedance 10 21 INPut DATA POLarity 10 21 INPut DATA TRIGger LEVel 10 21 INPut DATA TRIGger MODE 10 21 INPut DATA TRIGger 10 21 INPut DATA 10 21 INPut EQ AGC 10 22 INPut EQ BOOSt 10 22 INPut EQ DCCLamp 10 22 I...

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