NF WAVE FACTORY WF1967 Page 41 Instruction Manual (Operations Download

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3.2 I/O Terminals

WF1967/WF1968

3-11

3.2.4

External Trigger Input (TRIG IN)

WF1967

WF1968

This terminal can be used as external trigger input in the following cases. The polarity setting can be

changed.



Start trigger of single sweep



P.4-77



Start trigger of gated single sweep



P.4-77



Start trigger of trigger burst oscillation



P.4-95



Gate of gate oscillation



P.4-99



Trigger of triggered gate oscillation



P.4-103

It can also be used as the external modulation input for FSK and PSK.



P.4-59



Input Characteristics

Input voltage

TTL level (low: 0.8V or lower, high: 2.6V or higher)

Maximum allowable input

-0.5V to +5.5V

Input impedance

10kΩ, pull up to +3.3V

Signal GND

Same potential as the enclosure

TRIG IN

CH2 TRIG IN

CH1 TRIG IN

Summary of Contents for WAVE FACTORY WF1967

Page 1: ...MULTIFUNCTION GENERATOR WF1967 WF1968 Instruction Manual Operations NF Corporation nbn Austria GmbH...

Page 2: ......

Page 3: ...MULTIFUNCTION GENERATOR WF1967 WF1968 Instruction Manual Operations DA00048287 002...

Page 4: ......

Page 5: ...he equipment This manual has the following chapter organization The instructions for remote control GPIB USB LAN Option are provided in a separate manual included in the attached CD ROM If using this...

Page 6: ...ernal frequency reference 11 Using Sequence Oscillation This chapter describes how to set and operate sequence oscillation 12 Using User defined Units This chapter describes the units which users can...

Page 7: ...re to observe these warnings Be sure to ground the product This product uses a line filter which may cause electric shock if the product is not grounded This product is grounded automatically by conne...

Page 8: ...n this product and in the instruction manual are provided below Instruction Manual Reference Symbol This notifies the user of potential hazards and indicates that he she must refer to the instruction...

Page 9: ...oduct is grounded when being used the potential of the enclosure equals the grounding potential Requesting waste disposal To protect the environment ensure that this device is disposed of by an approp...

Page 10: ...WF1967 WF1968 vi...

Page 11: ...YNC SUB OUT 3 8 3 2 3 External Modulation Addition Input MOD ADD IN 3 10 3 2 4 External Trigger Input TRIG IN 3 11 3 2 5 External 10MHz Frequency Reference Input 10MHz REF IN 3 12 3 2 6 Frequency Refe...

Page 12: ...igh Low Level 4 36 4 4 11 To Set Waveform Polarity and Amplitude Range 4 38 4 4 12 How to Use Auto Range Range Hold for Output Voltage 4 40 4 4 13 To Set Load Impedance 4 41 4 4 14 To Add External Sig...

Page 13: ...g and Recalling Settings 5 1 5 1 Procedure to Save Settings 5 2 5 1 1 To save to build on memory 5 2 5 1 2 To save to USB flash memory 5 3 5 2 Procedure to Recall Settings 5 4 5 2 1 To recall from bui...

Page 14: ...8 5 8 4 Phase Synchronization between Channels 8 6 8 5 Maintaining to Same Frequency 2 Channel Coordination 2 Phase 8 7 8 6 Keeping Frequency Difference Constant 2 Channel Coordination 2 Tone 8 9 8 7...

Page 15: ...n Display Information 13 3 14 Troubleshooting 14 1 14 1 Error Messages at Power on 14 2 14 2 Error Messages during Operation 14 3 14 3 Conflict Messages for Modulation 14 7 14 4 Conflict Message for S...

Page 16: ...Pulse Wave 17 9 17 5 4 Ramp Wave 17 9 17 5 5 Noise 17 9 17 5 6 Parameter Variable Waveform 17 10 17 6 Modulated Oscillation Mode 17 11 17 6 1 General 17 11 17 6 2 FM 17 12 17 6 3 FSK 17 13 17 6 4 PM 1...

Page 17: ...WF1967 WF1968 xiii 17 14 Synchronization of Multiple Units 17 25 17 15 User defined Unit 17 26 17 16 Other Functions 17 26 17 17 Options 17 27 17 18 General Characteristics 17 27...

Page 18: ...3 3 Figure 3 3 Front Panel of WF1968 3 4 Figure 3 4 Rear Panel of WF1968 3 5 Figure 3 5 Multi I O connector pin configuration diagram 3 16 Figure 3 6 Cautions on floating ground connection for WF1967...

Page 19: ...WF1967 WF1968 1 1 1 Overview 1 1 Features 1 2 1 2 Operating Principles 1 4...

Page 20: ...cy Maintains the flatness of frequency characteristics Sine wave amplitude during frequency sweeps and frequency modulation Output waveform resolution Approximately 16 bit retains high resolution acro...

Page 21: ...losure to reduce the effects of ground loops Supports the synchronization of multiple units to configure a multiphase oscillator Built in USB GPIB interface Storage of settings and arbitrary waveforms...

Page 22: ...ations and waveforms The DDS also generates of modulation sweeps and bursts Digital waveform signals generated by DDS are controlled by the specified polarity normal or inversed and amplitude range FS...

Page 23: ...CONT ANALOG CONT 2 2MS s TTL 3V LPF LPF A D FRONT PANEL UNIT USB MEMORY LAN option MULTI I O Figure 1 2 WF1968 Block Diagram The external modulation signal passes through the LPF is converted from ana...

Page 24: ...y reference output it sends a channel synchronization WF1968 only signal to the Analog section of each channel Power Supply Continuously supplies power from the AC DC source directly connected to the...

Page 25: ...WF1967 WF1968 2 1 2 Preparations Before Use 2 1 Checking Before Use 2 2 2 2 Installation 2 3 2 3 Grounding and Power Supply Connection 2 5 2 4 Firmware Update 2 6 2 5 Calibration 2 6...

Page 26: ...e confirm that no items are missing are damaged This product has high voltage portions inside Absolutely never remove its cover Do not touch the inside by yourself in any case c Repackaging When you r...

Page 27: ...r less Do not install the device in the following locations Place exposed to inflammable gas This may pose a risk of explosion Never install use or operate the instrument in such an environment Outdoo...

Page 28: ...to the manual included with the kit Following attention should be drawn when you mount the equipment in the rack Be sure to install rails in the rack to support the equipment Do not mount this produc...

Page 29: ...968 85VA or lower b Connection procedure of the power source 1 Confirm that the commercial power source voltage is within the allowable voltage range of this product 2 Connect the power cord into powe...

Page 30: ...m the update as necessary 2 5 Calibration This equipment should undergo performance testing about once a year as a guideline although this depends on the usage environment and usage frequency Moreover...

Page 31: ...WF1967 WF1968 3 1 3 Panels and I O Terminals 3 1 Panel Component Names and Functions 3 2 3 2 I O Terminals 3 6 3 3 Cautions on Floating Ground Connection 3 18...

Page 32: ...to trigger sweep or burst P 4 77 P 4 95 Triggered lamp Lights when a trigger is accepted P 4 77 P 4 95 UNDO key Undo setting changes Lamp above lights up when UNDO is available P 4 17 Power switch P...

Page 33: ...3 2 Rear Panel of WF1967 USB connector Frequency reference output terminal P 3 13 External 10 MHz frequency reference input terminal P 3 12 GPIB connector Power supply input P 2 5 Air outlet P 2 3 Mul...

Page 34: ...ger is accepted P 4 77 P 4 95 UNDO key Undo setting changes Lamp above lights up when UNDO is available P 4 17 Power switch P 4 2 LCD screen Soft keys The operation items are displayed on the LCD scre...

Page 35: ...H1 External trigger input terminal P 3 11 CH2 External trigger input terminal P 3 11 Frequency reference output terminal P 3 13 External 10 MHz frequency reference input terminal 3 12 CH1 External mod...

Page 36: ...lements will try to reduce the voltage but a too high voltage may cause the product to be burned P 3 18 Do not apply a voltage from external to the output terminals This may damage the product Do not...

Page 37: ...sire it always keep the waveform output on and use the trigger burst oscillation and gate oscillation to start stop the oscillation P 4 93 Output Characteristics Output voltage Maximum 10V open Output...

Page 38: ...al P 4 59 Reference phase synchronization signal TTL level signal synchronized with internal modulation signal Internal modulation signal maximum 3V to 3V open Amplitude and offset may be set as desir...

Page 39: ...e synchronization waveform output P 4 30 At high frequencies actually comes out phase difference at 0 set by the difference in propagation delay time of the output circuit of the main waveform output...

Page 40: ...al addition signal input to the waveform output The gain of external addition is x0 4 x2 or x10 External modulation input P 4 59 External addition input P 4 42 Input Characteristics Input voltage 1V F...

Page 41: ...d single sweep P 4 77 Start trigger of trigger burst oscillation P 4 95 Gate of gate oscillation P 4 99 Trigger of triggered gate oscillation P 4 103 It can also be used as the external modulation inp...

Page 42: ...ference setting to enable P 10 4 To unify the frequency and phase of multiple WF1967 WF1968 units Connect the frequency reference output of the master unit to the external 10MHz frequency reference in...

Page 43: ...Output REF OUT WF1967 WF1968 This terminal is used to unify the frequency and phase of multiple WF1967 WF1968 units Connect the frequency reference output of the master unit to the external 10MHz fre...

Page 44: ...t any equipment other than WF1967 WF1968 and the equipment specified by NF Corporation to the frequency reference output The special signal that is output from this terminal during synchronization may...

Page 45: ...for sequence oscillation mode Sequence oscillation can be controlled as follows using 4 bit logic input P 11 11 Start or State Branch You may choose Start control or State branch control It starts the...

Page 46: ...and Red 7 GND Gray and Black 8 GND Gray and Red 9 Reserved Do not connect anything Do not connect anything White and Black 10 GND White and Red 11 Input Not in use Event Branch Light brown and Black B...

Page 47: ...2 6V or higher Maximum allowable input 0 5V to 5 5V Input impedance 10k pull up to 5V Output voltage TTL level low 0 4V or lower high 2 7V or higher Signal GND Same potential as the enclosure Connect...

Page 48: ...ent electric shocks The other signal grounds are all connected to the enclosure The enclosure itself is connected to a protective conductor terminal of the power supply input To prevent electric shock...

Page 49: ...ential difference of 42Vpk or less Use with potential difference of 42Vpk or less Enclosure ground Enclosure ground Enclosure ground Enclosure ground Use with potential difference of 42Vpk or less Use...

Page 50: ...3 3 Cautions on Floating Ground Connection WF1967 WF1968 3 20 MEMO...

Page 51: ...guration and Operation 4 6 4 3 Basic Settings and Operations 4 12 4 4 Setting for Main Items 4 26 4 5 Using Variable Parameter Waveforms 4 52 4 6 Using Arbitrary Waveforms 4 53 4 7 Setting and Operati...

Page 52: ...ff Power on operation Once the power is turned on a self test is executed and then the equipment becomes operable Power off operation Power off state standby state The power is turned on The start scr...

Page 53: ...er supply is on The most general case is illustrated below While the power is off if the power supply is cut off due to the disconnection of the power cord or the shutoff of the connected breaker this...

Page 54: ...ut on off setting at power on can be changed on the Utility P 4 21 The Sequence Oscillation mode and Sequence state restarts from beginning in Run Hold are also restored Check The settings immediately...

Page 55: ...llation mode on the Utility P 4 21 In this case the sequence stored in sequence memory 1 will automatically start Check As the settings before the power supply is cut off are not restored specify the...

Page 56: ...oration or Dealer Overheating status Temp Displayed when the internal temperature of the product is abnormally high If this status is displayed when the product is used at an ambient temperature of 40...

Page 57: ...een P 4 8 If the setting screen has multiple pages use the Next soft key to change pages If there are multiple setting screens an icon at the top center of the screen will indicate the currently displ...

Page 58: ...f the output waveform a Display format types The following three types of display formats are provided on the Oscillator screen Text display Text WF1967 or Single WF1968 Displays the settings for one...

Page 59: ...or the modify knob to select the Graph tab 3 Press the ENTER key to switch to the Graph tab screen On this screen you can set the parameters while checking the image of the output waveform Check In WF...

Page 60: ...ration target by tab selection to internal memory or USB flash memory a To switch the storage and reading destination When USB interface is not used it will appear as DISK when USB flash memory plugge...

Page 61: ...window open specify the menu item using the numeric keypad 1 to 6 b Operations available using top menu items For each item the following settings and operations can be performed Oscillator Opens the...

Page 62: ...t example the Frequency field is selected 2 Press the ENTER key to open an entry field to change the current value In this state you can enter a value using the numeric keypad 3 Press the left right a...

Page 63: ...t example the value is changed to 2 kHz The change is immediately reflected to the output 5 Press the ENTER key to close the input field Incrementing decrementing the value or If you press the CANCEL...

Page 64: ...ss the ENTER key or the unit key soft key to set the input value and reflect it to the output If you press the ENTER key the value is set without prefixes such as k or m Check If a setting item is dis...

Page 65: ...ame time a selection list of waveforms will open 2 Pressing the key directly below the lighting waveform will select that waveform and reflect it in the output For example in the image shown to the le...

Page 66: ...waveform frequency amplitude DC offset and oscillation mode can be immediately opened by using the corresponding basic parameter shortcut key Frequency Amplitude DC Offset Oscillation mode The freque...

Page 67: ...ollowing cancellations Close an input field or selection list Discard the value input from the numeric keypad Restore the value changed by using the modify knob Close a setting window or dialog box Fu...

Page 68: ...o open the input field 2 Press the Prefix soft key to move the cursor to before Hz You can also press the right arrow key to move the cursor to before Hz 3 You can use the up down arrow keys or the mo...

Page 69: ...arrow key to move the cursor to Vp p 3 You can use the up down keys or the modify knob to change the units to Vrms dBV or a user defined unit in the case of sine wave and load impedance Hi Z This jus...

Page 70: ...n the channel The channel that is to be set is called the active channel in this product In the burst oscillation and other modes the TRIG key works for the channel whose display is active Active sett...

Page 71: ...68 P 8 6 P 9 4 User Defined Unit Settings User Unit Sets the user defined units P 12 3 Output and Sequence at power on Power On State Determines the output on off settings when the power is turned on...

Page 72: ...set or change each item External 10MHz Frequency Reference ON OFF Ext Reference Sets permitted or forbidden for the external 10MHz frequency reference P 10 4 External 10MHz Frequency Reference state...

Page 73: ...the settings 4 3 9 Output On Off a Key Operation Switches the waveform output on off when pressed WF1967 has an OUTPUT key WF1968 has CH1 and CH2 keys The ON lamp above the key will lit when the outp...

Page 74: ...front panel The settings before the previous power off are restored If the power was turned off by disconnecting the power supply The output will remain off Oscillator mode not sequence mode This is t...

Page 75: ...put setting is completed select OK and then press the ENTER key The change of the power on output setting is applied and the window is closed When you do not want to apply the change of the power on o...

Page 76: ...lay screen 1 channel display in the continuous oscillation mode as an example There are two settings pages and the main settings can be found on the first page 4 4 1 Text Display Screen in Continuous...

Page 77: ...ODE key or use the arrow keys and modify knob to select the MODE item Pressing the ENTER key will open the oscillation mode selection list Select the desired oscillation mode from the selection list a...

Page 78: ...n unit is selected P 4 53 4 4 4 To Set Frequency 1 Press the FREQ key to open the input field of Frequency Or select the Frequency field and then press the ENTER key Frequency is displayed at first pa...

Page 79: ...following two methods are available to change from the frequency display to the period display Use the soft key Freq Period The input field of Frequency opens When the current Frequency is displayed...

Page 80: ...e reference phase synchronous output in the Synchronization Sub output and waveform output can be changed The following figure shows an example of a phase setting of 90 degree At this time the zero re...

Page 81: ...H2 precedes the waveform of CH1 as shown in the following figure For Synchronous Oscillation and 2 Phase Oscillation see P 8 6 P 8 7 Phase Difference Between Main and Sub Output Can be Changed Modulat...

Page 82: ...ator frequency will be displayed Synchronization is possible across a range from 20Hz to 10MHz Loss of synchronization can be checked by the UnLock status area in the upper right hand corner of the sc...

Page 83: ...it position at the right end 2 The unit can be changed by using the up or down arrow key modify knob Only the display unit is changed without changing the actual output value c Available units differ...

Page 84: ...set is restricted to 10V open 110MHz or less or 2V open For example when the AC amplitude is 5Vp p open DC offset is restricted to the range from 7 5V open to 7 5V open When the frequency is 110MHz or...

Page 85: ...nd then use the up or down arrow key or the modify knob to increment the value The change is immediately reflected to the output Or use the numeric keypad to enter the value Press the ENTER key or the...

Page 86: ...o change to the High Low display When the shortcut key AMPTD is pressed twice without opening the input field of Amplitude the input field of High level is opened While the input field of high level i...

Page 87: ...n AC DC Depending on the oscillation frequency high level and low level are restricted to a range of 10V to 10V open 110MHz or less or 2V to 2V open The maximum range also differs depending on the ran...

Page 88: ...ist and press the ENTER key to reflect it in the output You can also enter the number of the desired polarity and amplitude range displayed in the list on the numeric keypad to reflect it in the outpu...

Page 89: ...de is changed only the positive peak of waveform will change in reference to the DC offset position The amplitude will change in reference to the waveform s base The amplitude will change in reference...

Page 90: ...essing is opened 2 When AUTO is selected it is set to Auto range Selecting HOLD fixes the range at that time Select the desired range processing and then press the ENTER key b Maximum values of Amplit...

Page 91: ...field at the right of the range field is selected and the ENTER key is pressed the selection list is displayed 2 Select the desired load impedance condition and then press the corresponding soft key W...

Page 92: ...his BNC terminal is insulated from the chassis and the same ground electrical potential as the waveform output of the identical channel For the floating ground connection P 3 18 b To activate an addit...

Page 93: ...factor of 10 set the amplitude and the DC offset setting so that the output voltage range is 20V Because the external addition adds to the final stage of a waveform output P 1 4 the addition gain is...

Page 94: ...key or the modify knob to increment the value The change is immediately reflected to the output Or use the numeric keypad to enter the value Press the ENTER key or the unit key soft key to set the in...

Page 95: ...d to the low level and when 100 is set the waveform is fixed to the high level The pulse is not output in either case When the oscillation frequency is an integer ratio compared to 420MHz the edge tim...

Page 96: ...is immediately reflected to the output Or use the numeric keypad to enter the value Press the ENTER key or the unit key soft key to set the input value and reflect it to the output When the ENTER key...

Page 97: ...ulse width with time or duty e How to set leading falling time The leading time LE and the trailing time TE can be set with time only 1 To set the leading time select the LE field and then press the E...

Page 98: ...railing time are limited to 10ns or longer at 100Hz Furthermore the actual leading trailing times which are output in the 20Vp p range will be a maximum of 0 4ns later compared to other ranges even if...

Page 99: ...tio of the rising portion from start to finish The point at which the phase is zero degrees has been fixed to zero of the amplitude except in the case where the symmetry is 0 4 4 18 To Set the Equival...

Page 100: ...a frequency different from the main waveform However only when this is not necessary to output a modulated wave to the main waveform for use Condition 1 Conditions that can be selected SubFctn Settin...

Page 101: ...b Waveform Amplitude Select the sub waveform amplitude SubAmp on the second page or third page of the Oscillator setting screen The maximum total value of AC amplitude and DC offset is restricted to 3...

Page 102: ...settings can be changed even if you leave the selection screen Each waveform has a maximum of 5 specific variable parameters to be set Press the Reset soft key to initialize the variable parameters T...

Page 103: ...For creation of arbitrary waveforms data format and memory capacity P 7 2 The method for changing the name is the same as for the settings memory A maximum of 20 characters may be entered 3 Press OK...

Page 104: ...dulation P 4 61 FSK Frequency Shift Keying Binary Frequency Shift Keying P 4 62 PM Phase Modulation P 4 63 PSK Phase Shift Keying Binary Phase Shift Keying P 4 64 AM Amplitude Modulation P 4 66 AM DSB...

Page 105: ...put terminal This appears on page three in the burst oscillation mode and the sweep oscillation mode The following figure is an example of selecting FM as a modulation type Set the oscillation mode to...

Page 106: ...ctn in the sub output selection SubOut will output an internal modulation signal from the synchronization sub output BNC terminal At this time the internal modulation signal can be used as an independ...

Page 107: ...put when the modulation function is turned off or set to external modulation P 4 58 Sub output selection SubOut Selects the output signal from the synchronization sub output terminal Choose from the s...

Page 108: ...lation frequency ModFreq and the internal modulation phase ModPhs Select the internal modulation waveform ModFctn from the following seven types Sine wave Sine Down ramp wave DnRamp Square wave duty 5...

Page 109: ...put terminal The setting of the modulation width is the value for a signal level of 1V Note that if the input level is lower than 1V the modulation width is lower than the specified value When the ext...

Page 110: ...scilloscope When ModFctn is selected only when modulation function is on and using internal modulation The internal modulation waveform is output from the synchronization sub output BNC terminal The a...

Page 111: ...y deviation Deviation on the second page of the setting screen The output frequency changes within the range of carrier frequency peak frequency deviation When the modulation source Source is internal...

Page 112: ...q on the second page of the setting screen The carrier frequency and the hop frequency appear alternately in the output frequency When the modulation source Source is internal Int set the modulation w...

Page 113: ...nnot be performed with phase sweep d Setting items necessary for PM Set the peak phase deviation Deviation on the second page of the setting screen The output phase changes within the range of peak ph...

Page 114: ...force quit the Synclator function d Setting items necessary for PSK Set the phase deviation Deviation on the second page of the setting screen The state of phase deviation zero and the state of a spe...

Page 115: ...he trigger when the modulation source Source is external Ext and then enter the modulation signal TTL level to the external trigger input terminal When the polarity is set as positive High the phase d...

Page 116: ...setting screen The output amplitude changes within the range of the carrier amplitude setting value Vp p 2 x 1 modulation depth 100 When the modulation depth is 0 or the modulation is stopped the outp...

Page 117: ...n waveform ModFctn modulation frequency ModFreq and modulation phase ModPhs Internal Int cannot be selected during sweep oscillation mode When the modulation source Source is external Ext enter the mo...

Page 118: ...cond page of the setting screen The output amplitude changes within the range of the carrier amplitude setting value Vp p x modulation depth 100 When the modulation depth is 100 the maximum value of t...

Page 119: ...Set the peak DC offset deviation Deviation on the second page of the setting page The output DC offset changes within the range of DC offset setting peak DC offset deviation When the modulation source...

Page 120: ...f the setting page The output duty is changed within the range of carrier duty peak duty deviation When the pulse wave is used the pulse width of the carrier is fixed to the duty setting and cannot be...

Page 121: ...and then press the ENTER key a To set the oscillation mode to sweep Selecting sweep oscillation mode force quits the Synclator function b First page of the setting screen Basic parameter setting scree...

Page 122: ...weep Select as a trigger source from the inside or outside P 4 77 Stop level StpLvl The signal level when gated single sweep is stopped Set the level by specifying Off or On P 4 76 Sweep time Time Tra...

Page 123: ...odulation width Deviation Depth HopFreq This is the modulation width The item name changes with the modulation type P 4 58 Modulation source Source The modulation source is fixed to external Ext in sw...

Page 124: ...lue is opened and the displayed items are changed from Start Stop to Center Span respectively The soft key Center Span is also changed to Start Stop When the soft key Start Stop is pressed here then t...

Page 125: ...value stop value during sweep When the soft key Stt Stp of the soft key set displayed as 2 2 on the right end soft key on the second raw of the second page of the setting screen is pressed the starti...

Page 126: ...sweep mode SwpMode on the second page of the setting screen as gated single Gated This is an operation that combines gate oscillation with sweep Sweeps start with a trigger Because a trigger signal i...

Page 127: ...ger Trig on the second page of the setting screen Trigger source setting A trigger source can be selected from internal Int or external Ext When a trigger source is internal Int a trigger cycle can be...

Page 128: ...to the correct setting a trigger can be accepted P 14 8 The soft key Start and the manual trigger key on the panel operate as manual trigger operation regardless of the trigger source setting m To pau...

Page 129: ...led Off When Sync is selected Signals with TTL level that are rising at the reference phase of waveform are output from the synchronization sub output terminal When SwpSync is selected A TTL level sig...

Page 130: ...ring sweep is observed with oscilloscope with X Y display or X Y recorder it can be used as a signal of the X axis The following figure shows the relation between a sweep value and each signal When th...

Page 131: ...signment P 3 16 The following operations can be performed Sweep start pin 14 Falling input to pin 14 starts the sweep The sweep will restart from the beginning even if it is already running In the cas...

Page 132: ...on frequency is displayed Starting frequency Start The frequency range depends on a waveform Stop frequency Stop The frequency range depends on a waveform Sweep time Time Time to change from the start...

Page 133: ...falls by following value b To select phase sweep c Waveform or mode where phase sweep is unavailable Noise and DC cannot perform phase sweep FSK PSK and PM modulation are canceled modulation function...

Page 134: ...Amplitude Sweep For the sweep setting screen and the common operation method please refer to P 4 71 P 4 74 a Amplitude sweep example Examples of a continuous sweep and linear shuttle Shuttle sweep b...

Page 135: ...op second page of the setting screen P 4 76 The setting used for gated single sweep only Synchronization sub output selection SubOut third page of the setting screen P 4 79 4 8 7 Setting DC Offset Swe...

Page 136: ...nter span DC offset Span instead of start DC offset stop DC offset P 4 74 When sweep mode is single or gated single it is necessary to set the trigger condition Trig P 4 77 Set the following items as...

Page 137: ...SwpMode Select from continuous single or gated single P 4 75 Sweep function SwpFctn Select from one way shuttle P 4 75 It is possible to set with center duty Center and span duty Span instead of star...

Page 138: ...ttings and operations are performed in the Oscillator setting screen When you press the MENU key while another screen is displayed the Top menu is displayed Select Oscillator and then press the ENTER...

Page 139: ...nal modulation signal can be used as an independent signal source by freely setting the waveform frequency phase amplitude and DC offset Modulation source Source Select internal Int or external Ext fo...

Page 140: ...llation and pause automatically at the specified by waveform respectively A trigger signal is not necessary a Auto burst example Mark wave number oscillation wave number 3 waves space wave number stop...

Page 141: ...s displayed in the channel status area When pressing the soft key displayed on the left end the message concerning an improper setting appears When that is changed to a proper setting burst oscillatio...

Page 142: ...is observed with the oscilloscope etc it can be used as a trigger signal of the oscilloscope When Off is selected The output will be low level This helps to reduce interference from the common GND of...

Page 143: ...set burst mode to trigger burst Setting trigger burst will force quit the Synclator function Select Trigger on the burst mode setting menu Select burst oscillation mode BrstMode on the second page of...

Page 144: ...vel StpLvl The signal level while oscillation is stopped Set the level by specifying Off or On P 4 97 d Waveform that trigger is unavailable Noise and DC cannot perform trigger burst e Setting items n...

Page 145: ...he trigger source setting The TRIG key can be used for manual trigger operation However in the case of WF1968 the TRIG key only works on the channel side where the display is active For the channel wh...

Page 146: ...form SubFctn Output disabled Off Output disabled Off When Sync is selected Signals with TTL level that are rising at the reference phase of waveform are output from the synchronization sub output term...

Page 147: ...se 30 degrees stop level is OFF or ON and 50 Note that start oscillation stop phase is still effective When you the stop level is applied to the square wave a square wave with three values can be outp...

Page 148: ...Stop Unit OscStop The oscillation stop unit Select from 1 cycle and half cycle P 4 100 Trigger Trig The trigger condition gate condition Select as a trigger source from the inside or outside P 4 99 S...

Page 149: ...page of the setting screen The trigger delay is fixed to the minimum value Trigger source setting A trigger source can be selected from internal Int or external Ext When a trigger source is internal I...

Page 150: ...e synchronization sub output terminal It is low during oscillation and high while oscillation is stopped as show in the following figure Note that it is different from a gate signal When a signal unde...

Page 151: ...scale of the amplitude independently Set the stop level StpLvl as On On on the second page of the setting screen and set the level with value P 4 97 k Noise gate oscillation Because noise has no cycl...

Page 152: ...p phase after the gate signal is Off b To set burst mode as triggered gate oscillation Setting triggered gate oscillation force quits the Synclator function Select TrigGate on the burst mode setting m...

Page 153: ...P 4 104 A trigger is necessary for triggered gate oscillation See the next section f Trigger setting of triggered gate oscillation Internal trigger oscillator external signal manual trigger key operat...

Page 154: ...ync Burst synchronization BrstSync Internal modulation synchronization ModSync Internal modulation waveform ModFctn Sub waveform SubFctn Output disabled Off Output disabled Off When Sync is selected S...

Page 155: ...io to the full scale of the amplitude independently Set the stop level StpLvl as On On on the second page of the setting screen and set the level with value P 4 97 k Triggered gate oscillation of nois...

Page 156: ...4 9 Setting and Operation of Burst WF1967 WF1968 4 106 MEMO...

Page 157: ...ng and Recalling Settings 5 1 Procedure to Save Settings 5 2 5 2 Procedure to Recall Settings 5 4 5 3 Restoring Saved Contents to Initial Settings 5 6 5 4 Changing Setting Memory Name 5 6 5 5 USB Flas...

Page 158: ...decrement the setting memory number In the left side of the screen the specified setting memory number and its setting name are highlighted The overview of the setting saved in the specified setting m...

Page 159: ...he modify knob to increment or decrement the setting memory number In the left side of the screen the specified setting memory number and its setting name are highlighted The overview of the setting s...

Page 160: ...are highlighted on the far left of the screen The overview of the setting saved in the specified setting memory number is displayed on the right side of the screen 3 Press the Recall soft key to open...

Page 161: ...mber The specified setting memory number and its setting name are highlighted on the far left of the screen When folder in the last of the name a thing with is selected and pushed Enter soft key move...

Page 162: ...string to the right of the cursor to the left by one character Press the Insert soft key to insert a space at the cursor position Press the CLR soft key to delete the string to the right excluding the...

Page 163: ...creen for USB flash memory Select this button and press the ENTER key to display a dialog for entering the folder name Enter the name and press OK to create the new folder below the current folder and...

Page 164: ...5 5 USB Flash Memory Operations WF1967 WF1968 5 8 that made the adjustment of the instrument is obtained by adding energizing time It is not possible to change the date and time for the time stamp...

Page 165: ...WF1967 WF1968 6 1 6 Variable Parameter Waveforms 6 1 Categories 6 2 6 2 Meaning of Each Parameter and Waveform Examples 6 3...

Page 166: ...explanations in this chapter it does not limit how the waveforms can be used Steady Sine Group Waveform created based on a sine wave Intended for repeated output Transient Sine Group Waveform created...

Page 167: ...vertical axis 1 corresponds to the waveform memory s full scale amplitude FS The horizontal axis is the time axis and represents the time for one cycle with a 1 The horizontal axis also represents th...

Page 168: ...plitude range is FS First half amplitude Amptd1 The amplitude of the first half cycle When it is 100 the amplitude is the same as the original sine wave Variable range 100 00 to 100 00 Second half amp...

Page 169: ...tput waveform saturated by the power supply voltage Meaning of each parameter The example shows the case where the amplitude range is FS Clip ratio Clip The ratio by which the top and bottom of the or...

Page 170: ...rent waveform of a condenser input rectifier circuit Meaning of each parameter The example shows the case where the amplitude range is FS Crest factor CF The crest factor expresses the ratio of the pe...

Page 171: ...ction angle Angle When the conduction angle is positive the waveform is a sine wave with the conduction angle portion removed from the back of the half cycle When the conduction angle is negative the...

Page 172: ...ates the pseudo sine wave output of a UPS uninterruptible power supply etc Meaning of each parameter The example shows the case where the amplitude range is FS Steps The number of stairs The example a...

Page 173: ...ion Meaning of each parameter The example shows the case where the amplitude range is FS Cycles The number of cycles included in one basic cycle Variable range 0 01 to 50 00 Start Phase Phase The phas...

Page 174: ...se where the amplitude range is FS Phase at start completion OnPhase The original sine wave starts from this phase Variable range 0 00 to 360 00 Starting slope time SlopeT The linear change in time of...

Page 175: ...amplitude range is FS Shut off start phase OffPhase The original sine wave ends at this phase Variable range 0 00 to 360 00 Shut off slope time SlopeT The linear change in time of the amplitude from t...

Page 176: ...attering pattern from this phase It is fixed at zero before that Variable range 0 00 to 360 00 Number of chattering ChatterN The number of times it repeatedly turns on and off The repeated on and off...

Page 177: ...a chattering pattern from this phase as it shuts off Variable range 0 00 to 360 00 Number of chattering instances ChatterN The number of times it repeatedly turns off and on The repeated on and off p...

Page 178: ...fixed at FS at the center of the horizontal axis The head and tail do not go to zero Please note that the greater the standard deviation the more the head and tail will float above the zero level The...

Page 179: ...alue is fixed at FS at the center of the horizontal axis The head and tail do not go to zero Please note that the greater the half value width the more the head and tail will float above the zero leve...

Page 180: ...sine wave over the 90 to 270 range Other ranges are fixed at the zero level Variable range 0 01 to 100 00 of basic cycle Peak value is fixed at FS at the center of the horizontal axis Waveform exampl...

Page 181: ...idth of a sine wave from the 0 to 180 range Other ranges are fixed at the zero level Variable range 0 01 to 100 00 of basic cycle Peak value is fixed at FS at the center of the horizontal axis Wavefor...

Page 182: ...ch oblique side Variable range 0 00 to 50 00 of basic cycle Upper base width UpperBase The width of the upper base Variable range 0 00 to 100 00 of basic cycle Peak value is fixed at FS at the upper b...

Page 183: ...ss The number of zero crossings on one side Variable range 1 to 50 Peak value is fixed at FS at the center of the horizontal axis Has a frequency band that is roughly fundamental frequency times numbe...

Page 184: ...onstant TC Time constant of the exponential function Variable range 0 01 to 100 00 of basic cycle The amplitude at infinite time is FS The tail will not rise to FS Please note that the tail value will...

Page 185: ...TC Time constant of the exponential function Variable range 0 01 to 100 00 of basic cycle The head starts at FS but the tail does not go to zero Please note that the tail offset will get larger as the...

Page 186: ...e the amplitude range is 0 FS Natural frequency of the LPF Fn The frequency of the oscillation component is lower than Fn Variable range 1 00 to 50 00 times fundamental frequency LPF Q Q The oscillati...

Page 187: ...plitude range is FS DampTC is positive DampTC is negative Oscillation frequency OscFreq Variable range 0 01 to 50 00 times fundamental frequency Damped oscillation time constant DampTC The oscillation...

Page 188: ...e shows the case where the amplitude range is FS Oscillation frequency OscFreq Variable range 0 01 to 50 00 times fundamental frequency Damped oscillation time constant DampTC The amplitude of the osc...

Page 189: ...amplitude to rise from 10 to 90 of the peak value Variable range 0 01 to 100 00 of basic cycle Time duration Td Pulse width with an amplitude 10 or greater of the peak value Variable range 0 01 to 10...

Page 190: ...Delay The rising start position of the trapezoid wave Variable range 0 00 to 100 00 of basic cycle Rising slope width Rise The width of the rising portion Variable range 0 00 to 100 00 of basic cycle...

Page 191: ...he example shows the case where the amplitude range is 0 FS Leading time LE Time for the amplitude to change from 10 to 90 of the peak value Variable range 0 00 to 100 00 of basic cycle Trailing time...

Page 192: ...e where the amplitude range is 0 FS Symmetry Symm The ratio of the rising portion Variable range 0 00 to 100 00 Peak value is fixed at FS Waveform examples The polarity and amplitude range are all Nor...

Page 193: ...7 3 7 3 Creating New Arbitrary Waveform 7 5 7 4 Simple Arbitrary Waveform Creating Example 7 6 7 5 Outputting Created Arbitrary Waveform 7 7 7 6 Saving Created Arbitrary Waveform 7 7 7 7 To Use the S...

Page 194: ...created its time axis direction is fixed to 0 to 1 per cycle and the amplitude direction is fixed to 1 equivalent to FS of waveform memory Save location of arbitrary waveforms There are the three foll...

Page 195: ...ith zero 0 Start point is fixed to X 0 000000 End point is fixed to X 1 000000 and the paired Y values of both the start and end points are the same the same point If an output waveform is set to the...

Page 196: ...its state Wfm Copy Copies a standard waveform in to the edit memory Recall Copies the already saved arbitrary waveform in the control point format to the edit memory Store Saves the waveform in the ed...

Page 197: ...soft key to copy a standard waveform to the edit memory Then modify control points How to operate control points is the same as the case of creating a new arbitrary waveform thoroughly However noise...

Page 198: ...t before the X value and the control point just after the X value The Y value is rounded to 16 bit resolution To change the Y value to the form of a step set the variation width between adjacent X val...

Page 199: ...ary Waveform 1 Pressing the Store soft key switches to the save screen The internal memory or USB flash memory may be selected as the save destination on this screen 2 Select the Internal or USB tab o...

Page 200: ...memory and second screen specifies the save destination USB flash memory Press the Next soft key to change screens The currently displayed screen is indicated by the icon at the top center of the scr...

Page 201: ...the folder is created under the current folder it will appear in the list of files c Time stamp of files WF1967 WF1968 does not have a built in battery will shift the time of the only time stamp minu...

Page 202: ...lect an arbitrary memory number between 1 and 128 and select the OK soft key The contents of the specified internal memory location are copied to the edit memory The name can also be changed on this s...

Page 203: ...specified on the next page Pressing the Enter soft key while selecting a folder sets the current folder to the specified folder or for the folder above b To select the retrieval destination Select num...

Page 204: ...sed as a waveform cannot be deleted 7 8 2 To Delete From USB Flash Memory The screens for saving an arbitrary waveform to USB flash memory are split into two pages One screen specifies the save source...

Page 205: ...arbitrary waveform in the control point format is shown in the following table Number of control points 2 10 100 300 1 000 2 000 5 000 10 000 Memory capacity required for save 1KiB 1KiB 2KiB 4KiB 9Ki...

Page 206: ...7 9 Identifying Memory Space Required for Saving Arbitrary Waveforms WF1967 WF1968 7 14 MEMO...

Page 207: ...nnels 8 6 8 5 Maintaining to Same Frequency 2 Channel Coordination 2 Phase 8 7 8 6 Keeping Frequency Difference Constant 2 Channel Coordination 2 Tone 8 9 8 7 Keeping Frequency Ratio Constant 2 Channe...

Page 208: ...sweep P 8 7 2 channel coordination operation function with constant frequency difference The frequency can be changed with the frequency difference kept constant This function controls to keep the fr...

Page 209: ...To copy all parameters select All Parameters Otherwise select parameters for each oscillation mode There are the following four types of parameters as parameters for each oscillation modes continuous...

Page 210: ...Parameters Sweep Parameters and Burst Parameters is not equivalent to copying All Parameters The following items are copied only when copying All Parameters Output on off state Oscillation mode Exter...

Page 211: ...n off burst trigger sweep start stop operation This function is enabled until the 2 channel equivalence setting function is reset to off To turn on off 2 channel equivalence setting function Turning o...

Page 212: ...s the synchronization relationship If necessary make a synchronous operation accordingly Operational restrictions There are restrictions shown in the following table to the synchronous operation The s...

Page 213: ...ference channel for example channel 1 to 0 degree and change only the phase setting of the channel 2 At this time the phase setting of the channel 2 is a phase of the channel 2 based on the channel 1...

Page 214: ...ting is independent for each CH PWM Both CHs are PWM Modulation setting is independent for each CH Sweep oscillation mode Frequency Sweep Both CHs are frequency sweep Sweep function sweep range sweep...

Page 215: ...and gated single sweep Selecting 2 channel coordination To set the frequency difference In the Utility screen set Channel Mode to 2Tone Indep is normally set This makes the channel mode an oscillatio...

Page 216: ...e frequency difference Sweep function sweep time and sweep mode are common Gated single sweep unavailable Single sweep trigger source and sweep internal trigger oscillator are common External trigger...

Page 217: ...nation To set the frequency ratio In the Utility screen set Channel Mode to Ratio Indep is normally set This makes the channel mode an oscillation with constant frequency ratio The frequency ratio bet...

Page 218: ...ndent for each CH Sweep oscillation mode Frequency sweep Both CHs are frequency sweep Sweep range follows the frequency ratio Sweep function sweep time and sweep mode are common Gated single sweep una...

Page 219: ...tem Restriction Modulated oscillation mode Modulation source can be set to internal for FM PM AM AM SC OFSM and PWM Modulation source can be set to internal or external for FSK or PSK Sweep oscillatio...

Page 220: ...tput including DC it is possible to obtain the double amount of output voltage however the output impedance is 100 Selecting 2 channel coordination Operational restrictions The restrictions are the sa...

Page 221: ...WF1967 WF1968 9 1 9 Synchronizing Multiple Units 9 1 Connection Procedure 9 2 9 2 Performing Synchronization 9 4...

Page 222: ...its However in addition to the coaxial cable T type divider and 50 terminating resistor are required The connection method 2 is easy to connect because it can make the connection using only coaxial ca...

Page 223: ...reference input for the next slave unit Time difference between slave units varies depending on the delay within units approximately 25ns and connection cable length approximately 5ns m The maximum n...

Page 224: ...use the external for the frequency reference for the master unit enable the external frequency reference in the Utility screen set the external reference to Enable P 10 4 Slave unit Select 2 channel i...

Page 225: ...unit or between slave units is removed If you change the setting of channel mode or external frequency reference the synchronization relationship is lost Operational restrictions There are restriction...

Page 226: ...9 2 Performing Synchronization WF1967 WF1968 9 6 MEMO...

Page 227: ...WF1967 WF1968 10 1 10 Using External Frequency Reference 10 1 Purpose of Using External Frequency Reference 10 2 10 2 Connection and Usage Procedure of External Frequency Reference 10 2...

Page 228: ...l 10MHz signal to the external 10MHz frequency reference input 10MHz REF IN BNC terminal on the rear panel WF1967 WF1968 Input characteristics are as follows Input voltage 0 5Vp p to 5Vp p Maximum all...

Page 229: ...s multiple BNC connectors that are connected to a common ground If such a high voltage is applied the internal voltage limiting elements will try to reduce the voltage but a too high voltage may cause...

Page 230: ...using the signal input to the external 10 MHz frequency reference terminal as the frequency reference If the external frequency reference signal breaks on the way the frequency reference is automatica...

Page 231: ...In Step Processing Flow 11 12 11 4 Setting and Operation Procedure 11 13 11 5 Saving Created Sequence 11 17 11 6 Using the Saved Sequence 11 19 11 7 Deleting the Saved Sequence 11 20 11 8 Outline of...

Page 232: ...e sequence ends In this case the system waits for the sequence to start in the state of DC 0V Time and Action are enabled only when the sequence is stopped They will be explained later Step 1 When the...

Page 233: ...e StepTerm is set to Continue the sequence moves to Step 4 when resume operation is performed Step 0 Since Time is set to 5 seconds Offset is set to 0V and Action of Offset is set to Sweep the output...

Page 234: ...rameters and intra step channel parameters Sequence oscillation has the following two main types of parameters Step control parameters Sequence oscillation consists of multiple steps linked to each ot...

Page 235: ...enerated internally the value set in the reference phase in the phase Phase will be output are added Reference phase frequency amplitude offset phase changes in a continuous even if the change Also ex...

Page 236: ...n to the next step with a continuous phase regardless of the stop phase setting The following figures show the example in which the stop phase is specified and in which it is not specified when the ph...

Page 237: ...e next step after approximately 350ns equivalent to 0 126 in 1kHz has elapsed from the specified stop phase Previous step Previous step Next step Next step End of step time End of step time Waiting fo...

Page 238: ...the phase is set to 0 oscillation starts from 0 The following figures show the examples of when the phase is set to 0 and when the phase is set to 90 where the step after DC is sine wave g Frequency...

Page 239: ...0 is also the state at the end of sequence When the mode changes from the normal oscillation mode to the sequence oscillation mode the status changes to the Step 0 output status Since this is a speci...

Page 240: ...eforms becomes smaller The following table shows the memory size that can be allocated to each waveform Waveform Size Size adjustment DC 0W Fixed Square wave 0W Fixed Sine wave 4KiW 512KiW 1MiW power...

Page 241: ...i I O connector set to Enable When the multi I O connector is not used disable this setting set to Disable P 11 16 Allocation of the pin 14 of multi I O connector Multi I O pin14 Pin 14 of the multi I...

Page 242: ...on the state branch signal is checked after the specified step time has elapsed excluding the time being held If the auto hold setting is on the sequence waits in the final state of the step until res...

Page 243: ...ontents of the selected step are output In the sequence creating editing screen Edit is displayed at the top right corner of the screen The soft key items in the sequence creating editing screen are a...

Page 244: ...ut range setting is performed to make the sequence executable Ready As a result of compilation when any setting not preferable for execution is found an error message is displayed When the compilation...

Page 245: ...fied step g Terminating the sequence Press the Stop soft key in the Run or Hold status to terminate the sequence The sequence moves to Step 0 Rdy is displayed at the top right corner of the screen The...

Page 246: ...g a sequences Falling input in the Run or Hold status ends the sequence and switches to Step 0 Holding resuming sequences Falling input in the Run status pauses the sequence Rising input during pause...

Page 247: ...of the screen and press the ENTER key to switch the saving location Select a desired sequence number from 1 to 10 and press the OK soft key The sequence being edited at the moment is copied to the bui...

Page 248: ...ft key to rename the file folder When you press the NewFolder button and press the ENTER key the dialog box appears where you can specify the name of a new folder you create Enter the name and press t...

Page 249: ...e used 1 Press the Recall soft key in the Edit status to switch to the screen for recalling the saved sequence 2 Select USB tab at the left bottom side of the screen and press the ENTER key to switch...

Page 250: ...also initialized to seq01 to seq10 11 7 2 Deleting from the USB Flash Memory USB interface in use USB memory cannot be used 1 In the Edit state and press the Store soft key to switch to the screen fo...

Page 251: ...displayed simultaneously 2 channel simultaneous display Dual WF1968 only The intra step channel parameters of one step are displayed for two channels simultaneously For the step control parameters on...

Page 252: ...e setting PRM and SCL displayed in the trace settings indicate the display item and the height of the trace frame respectively OFS indicates the bottom value of the trace frame for frequency amplitude...

Page 253: ...is is set to on it is possible to specify the number of jumps to the step specified with JumpTo jump destination When this is set to Inf jump is repeated for infinite number of times Note that the num...

Page 254: ...the required portions Creating a multiplex loop by inserting steps to connect the step patterns Step L JumpTo Off Continue Step M JumpTo L JmpCnt 9 999 Continue 9 999 Step M 1 Time 0 1ms JumpTo L Jmp...

Page 255: ...WF1967 WF1968 12 1 12 Using User defined Units 12 1 About User defined Unit 12 2 12 2 Display and Setting in User defined Unit 12 2 12 3 Defining User defined Units 12 3...

Page 256: ...them like the usual units In this product these units are called user defined unit The user defined unit can be used for the following six parameters Frequency period amplitude DC offset phase and dut...

Page 257: ...p to 4 characters Enter a character one by one at the cursor position using the up down arrow key the modify knob or the numeric keypad Formula Form Select either one of h n m or log h n m as the unit...

Page 258: ...log Multiplier and offset of formula m n Select the multiplier m and offset n in the selected formula After setting each parameter select OK at the bottom of the window and press the ENTER key To set...

Page 259: ...g Remote Interface Remote 13 2 13 2 Display Setting Display 13 2 13 3 Modify Knob and Modify Direction Setting Modify Direction 13 2 13 4 Operation Sound Setting Sound 13 3 13 5 Self Diagnosis Self Ch...

Page 260: ...lect GPIB set GPIB address within the range of 0 to 30 When you select LAN MAC address and port address are displayed Set IP address subnet mask and default gateway Set the brightness of backlight You...

Page 261: ...e the check stops the oscillation and turns off the output it is recommended to initialize the setting by Reset in advance P 4 23 Before check remove all cables other than the power cable from this pr...

Page 262: ...13 6 Product Information Display Information WF1967 WF1968 13 4 MEMO...

Page 263: ...essages at Power on 14 2 14 2 Error Messages during Operation 14 3 14 3 Conflict Messages for Modulation 14 7 14 4 Conflict Message for Sweep 14 8 14 5 Conflict Message for Burst 14 9 14 6 Sequence Co...

Page 264: ...trument ROM error This is an internal memory error This is a failure of this instrument Last shutdown caused by overheat The last power off was caused by internal overheat Check the operating environm...

Page 265: ...When the channel mode is 2 phases constant frequency difference or constant frequency ratio the modulation source for FM and FSK is limited to internal The other types of source are not affected by th...

Page 266: ...too wide Amplitude may decrease or pulse may be lost This event happens when the pulse width of a square wave with extended duty variable range is narrower than 8 4ns on the low or high side 22036 Fre...

Page 267: ...r source of CH1 in the following conditions CH1 and CH2 have the same sweep type CH1 and CH2 are in the same sweep mode except for Cont CH1 and CH2 are in the same burst mode except for auto burst 230...

Page 268: ...et to the upper limit 61058 Zero data not allowed Zero cannot be set in this parameter 61059 Invalid operation This operation is invalid You are trying to insert a control point into the impossible pl...

Page 269: ...onnector is currently used for external addition It cannot be used for external modulation Turn the external addition function off Modulated peak or bottom value out of range The carrier value the dev...

Page 270: ...r the frequency Gated sweep not available for DC Gated sweep is not available for DC waveform Change the sweep mode to continuous or single Start value out of range The start value is beyond the allow...

Page 271: ...opriate setting conflict state They describe the improper settings BrstMode not compatible with current Function The burst oscillation mode is not adequate for the current waveform For example trigger...

Page 272: ...he frequency and duty of the square wave do not satisfy mutual restriction in step M of channel N The frequency is set at step K and the duty is set at step L Lower the frequency or bring the duty clo...

Page 273: ...added Make the DC offset to 0V 4 4 9 To Set DC Offset P 4 35 A user defined unit is used Select a standard unit 4 4 8 To Set Amplitude P 4 33 The load impedance function is used Change the setting to...

Page 274: ...14 7 Suspected Failure WF1967 WF1968 14 12 MEMO...

Page 275: ...WF1967 WF1968 15 1 15 Maintenance 15 1 Outline 15 2 15 2 Operation Inspection 15 4 15 3 Performance Test 15 5...

Page 276: ...r If this fails to remedy the problem NF Corporation will investigate the cause of the problem and repair it This Instruction Manual describes the operation inspection and the performance testing meth...

Page 277: ...er Accuracy 0 1ppm Agilent 53131A Opt 010 highly stabilized TB Measurement of frequency duty time interval between channels Oscilloscope BW 300MHz or greater 2GS s 50 input Agilent DSO6032A Measuremen...

Page 278: ...ity screen Then connect the FCTN OUT to the oscilloscope using characteristic impedance 50 series coaxial cable and observe the output Change following settings several times and check they work prope...

Page 279: ...cified set the input impedance for connecting instruments to 50 For instruments that cannot be set to 50 input install 50 terminator feed through terminator at the input of the instrument Measure a si...

Page 280: ...DC only Connection FCTN OUT Digital multi meter DC voltage measurement Setting Set the waveform to DC after setting initialization The following table shows the DC offset Measurement Measure the outp...

Page 281: ...amplitude setting it is normal when the measurement error for each frequency based on the measurement values at 1kHz falls within the range of the following table The line at right end of the table i...

Page 282: ...ment range at 10Vp p and 5MHz is 0 1dB to 0 2dB Amplitude setting Value at 50 load Measured value at 100kHz Error at 1MHz Error at 5MHz Error at 10MHz 10Vp p Reference value X1 0 15dB X1 0 15dB X1 0 2...

Page 283: ...N OUT Spectrum analyzer Use a coaxial cable Measure a signal up to approx 24dBm Use a coaxial attenuator separately not to exceed the allowable input of the spectrum analyzer Setting The following tab...

Page 284: ...quare and the amplitude to 20Vp p open after setting initialization The following table shows the duty variable range setting the frequency setting and the duty setting Measurement Set the universal c...

Page 285: ...2 50 termination Use coaxial cables whose length and kind are same Setting Set the channel mode to 2PHASE amplitude to 20Vp p open phase of CH2 to 180deg and frequency to 10MHz after setting initializ...

Page 286: ...15 3 Performance Test WF1967 WF1968 15 12 MEMO...

Page 287: ...WF1967 WF1968 16 1 16 List of Initial Settings...

Page 288: ...y and amplitude range Normal FS Frequency 1kHz Amplitude 0 1Vp p DC offset 0V Range Auto Load impedance Open Phase 0 Output Off Noise bandwidth 30MHz Waveform Square wave duty Standard range 50 Pulse...

Page 289: ...vel Off 0 External control input Disabled Oscillation stop unit when gated single Cycle Synchronization sub output Sweep synchronization marker on Burst Burst mode Trigger burst Mark wave number 1 0 S...

Page 290: ...settings Output at power on Off Display Dark color Modify direction Downward by turning CW Operation sound On Following items are initialized every time the power is turned on Sequences Start step 1...

Page 291: ...scillation Mode 17 11 17 7 Sweep Oscillation Mode 17 14 17 8 Burst Oscillation Mode 17 18 17 9 Synclator Function 17 19 17 10 Trigger 17 20 17 11 Sequences 17 21 17 12 Other I Os 17 22 17 13 2 Channel...

Page 292: ...es Sine square pulse ramp parameter variable only main output noise gauss distribution DC Polarity only main output Normal invert Switch Except for DC Amplitude range only main output FS 0 FS 0 FS swi...

Page 293: ...70MHz Pulse wave 0 01 Hz to 70MHz 3 Ramp wave 0 01 Hz to 20MHz 4 Parameter variable waveform 0 01 Hz to 20MHz 5 Noise Equivalent bandwidth Select from 100M 30M 10M 3M 1M 300k 100kHz DC Frequency sett...

Page 294: ...to the main output except section 17 4 5 17 4 1 Amplitude Setting range 0Vp p to 20Vp p open 0Vp p to 10Vp p 50 A peak value combining waveform amplitude and DC offset is limited to 10V open or less...

Page 295: ...mplitude resolution is reduced 17 4 2 DC Offset Setting range 10V open 5V 50 A peak value combining waveform amplitude and DC offset is limited to 10V open or less With frequency exceeding 110MHz the...

Page 296: ...when the oscillation frequency exceeds 160MHz Sub waveform Analog waveform output synchronized with the main output Phase is variable to the reference phase synchronization signal and the amplitude a...

Page 297: ...mVp p to 10Vp p 50 for more than 100MHz 50mVp p to 2Vp p 50 DC offset setting 0V auto range external addition off effective value measurement and reference frequency 1kHz Total harmonic distortion 1 2...

Page 298: ...s narrower than 2 4ns pluses may disappear However when the frequency is not 1 integer of 420MHz it becomes equal to the specified duty on average When it is 1 integer up to approx 2 4ns of inaccuracy...

Page 299: ...it of time setting Upper limit s period leading time trailing time 0 85 Lower limit s leading time trailing time 0 85 Upper and lower limits of duty setting are computed by the upper and lower values...

Page 300: ...d sine Staircase sine Multiple cycle sine b Transient sine group On phase controlled sine Off phase controlled sine Chattering on sine Chattering off sine c Pulse group Gaussian pulse Lorentz pulse Ha...

Page 301: ...ternal modulation of FSK and PSK uses an external trigger input terminal When the burst function is used simultaneously FSK and PSK cannot be selected in the mode other than auto burst Internal modula...

Page 302: ...tput for high level input When the polarity is set as negative the other way around In the PSK modulation when the polarity is set as positive the steady phase is output for low level input and the ph...

Page 303: ...ceeds 160MHz 17 6 4 PM Carrier waveform Standard waveforms except for noise and DC and arbitrary waveforms Peak deviation setting range 0 000 to 180 000 resolution 0 001 Carrier phase peak deviation i...

Page 304: ...y waveforms Peak deviation setting range 0V 10V open Peak deviation setting resolution 499 9mV or less 4 digits or 0 1mV 0 5V or more 5 digits or 1mV 17 6 8 PWM Carrier waveform Square wave and pulse...

Page 305: ...sweep and gated single sweep Internal external input terminal switch In addition CH2 can select the same trigger source as CH1 Common regardless of sweep type Trigger delay setting is disabled Manual...

Page 306: ...ulti I O connector MULTI IO is used Enable disable switch In WF1968 it allows shares by both channels and settings on each channel Start Starts sweep from beginning by falling input Stop Stops sweep b...

Page 307: ...DC and arbitrary waveforms Setting range of start and stop phase 1800 000 to 1800 000 resolution 0 001 17 7 4 Amplitude Sweep Waveform Standard waveforms except for DC and arbitrary waveforms Setting...

Page 308: ...de Auto burst Repeats oscillating the number of mark wave and stopping the number of space wave Trigger is disabled Trigger burst Oscillates the number of mark wave in synchronization with trigger Gat...

Page 309: ...ion 5 digits or 0 1 s Burst external trigger input used except for auto burst Polarity Positive negative disabled switch Input connector External trigger input terminal TRIG IN Input signal and input...

Page 310: ...it will not become the same phase with 0 setting Limitations Not available for the FM PSK FSK frequency sweep and burst except auto and when the waveform is noise DC and pulse Not available together w...

Page 311: ...ared Step control parameters Step time hold operation jump destination jump count step end phase branch operation step termination control step synchronization code output Channel parameter in steps W...

Page 312: ...epend on external trigger input specification Limitations Used with synclator function is not available 17 12 Other I Os External 10 MHz frequency reference input Select frequency reference Enabled an...

Page 313: ...and the same sweep type for sweep oscillation Apply to the standard waveform except for noise and DC and arbitrary waveform Keep the same frequency also for frequency sweep internal frequency modulati...

Page 314: ...n External modulation is not allowed Burst and gated single sweep are not allowed External addition is not allowed Differential output2 Same as differential output but DC is reversed polarity When the...

Page 315: ...method 1 6 units including master unit Connection method 2 4 units including master unit Phase synchronization operation Manual operation Time difference between unit Delay of each channel against ea...

Page 316: ...d If the mode was sequence when the power was turned off the sequence mode and the sequence execution state can be automatically restored Power off with shutting down a line The contents of setting me...

Page 317: ...b output SYNC SUB OUT external modulation addition input MOD ADD IN are insulated from the enclosure These signal grounds are shared in the same channel The signal ground for the external 10MHz freque...

Page 318: ...rage requirements 10 to 50 C 5 to 95 RH Where absolute humidity is 1 to 29g m3 non condensing Warm up time 30 minutes or more typ Pollution degree 2 Outline dimension 216 W x 132 5 H x 332 D mm withou...

Page 319: ...al drawing WF1967 Surface treatment Front panel Plastic sheet black Frame Grayish blue metallic paint Cover Graying blue metallic leather tone paint When the stand is used Side view Front view Cover s...

Page 320: ...ensional drawing WF1968 Surface treatment Front panel Plastic sheet black Frame Grayish blue metallic paint Cover Graying blue metallic leather tone paint When the stand is used Side view Cover surfac...

Page 321: ...ld it only with the rack mount adapters Be sure to hold the main unit with brackets or shelves on the rack side Space of 5 mm or more is required above the upper surface When installing the unit to th...

Page 322: ...the main unit with brackets or shelves on the rack side Space of 5 mm or more is required above the upper surface When installing the unit to the rack attach a blank panel etc on the panel side of the...

Page 323: ...t dimensional drawing JIS for 1 unit Surface treatment Rack mount adapters Metallic gray paint Caution When mounting the unit in the rack do not hold it only with the rack mount adapters Be sure to ho...

Page 324: ...ack mount adapters Metallic gray paint Caution When mounting the unit in the rack do not hold it only with the rack mount adapters Be sure to hold the main unit with brackets or shelves on the rack si...

Page 325: ...to return the product to purchaser This warranty shall not apply to any defect failure or damage caused by improper use improper or inadequate maintenance and care or modified by purchaser or personne...

Page 326: ......

Page 327: ...ided in this manual is intended to be accurate and reliable However we assume no responsibility for any damage regarding the contents of this manual We assume no responsibility for influences resultin...

Page 328: ......

Page 329: ......

Page 330: ...ohoku ku Yokohama223 8508JAPAN nbn nbn at www nbn at Tel 43 316 402805 Fax 43 316 402506 Riesstra e 146 8010 Graz nbn Austria GmbH Aufgrund laufenderWeiterentwicklungen sind nderungen der Spezifikatio...

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