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TFG6800 Series Function/Arbitrary Waveform Generator Users’ Guide

Suin Instruments Co., Ltd

3.19.4Amplitude Coupling

Amplitude coupling enables the output amplitude between channels related and output differential

signal. Press

〖

AmplCpl

〗

soft key and set the amplitude coupling to ‘On’, and the amplitude or

offset value of the two channels shall comply with the following formula:

Target channel amplitude= Source channel am amplitude difference

Target channel offset= Source channel offset deviation

When using the amplitude coupling function, the instrument will set the amplitude or offset to the

limit value if the amplitude or offset of the target channel exceeds the upper limit or lower limit,

and the above formula is no longer applied to.

When use amplitude coupling function, differential signal could be output by the two channels.

3.19.5 Coupling parameter

Press

〖

MultipleParam

〗

soft key to enter the coupling parameter setting menu. Four parameters

can be set: frequency ratio, frequency difference, amplitude difference and amplitude ratio.

3.19.6 Phase alignment

Press

〖

AlignPhase

〗

soft key and select the channel to be alignment, and the phase difference

between each channel could be calculated according to phase setting for each channel.

3.20 File Manager

File managers are used in the operations of harmonic synthesis, frequency sequences, arbitrary

waveforms, arbitrary wave sequences, instrument state, system update and USB disk operation.

File manager allows user to handle file save and recall conveniently in the above function.

3.20.1 Layout

The layout of the file manager is as below picture shown:

Содержание TFG6800 Series

Страница 1: ...User s Guide TFG6800 Series Function Arbitrary Waveform Generators Suin Instruments Co Ltd 03 2021...

Страница 2: ...edge time could be set Double Pulse Pulse width and time interval of the two Pulses could be set separately Phase Characteristic The phase and polarity that output signal relative to synchronizing si...

Страница 3: ...pacitive touch screen to make the operation more easily Calculation function Values of frequency period amplitude peak to peak RMS or dBm could be selected Communication interface USB device USB host...

Страница 4: ...truction 19 3 1 Working Mode 19 3 2 Continuous Output 19 3 3 Frequency Modulation 28 3 4 Amplitude Modulation 29 3 5 Phase Modulation 31 3 6 Pulse Width Modulation 32 3 7 Sum Modulation 33 3 8 Frequen...

Страница 5: ...ort 81 4 1 Warranty 81 4 2 Contact 81 Chapter 5 Specifications 82 5 1 Continuous Output 82 5 2 Modulation Output 84 5 3 Burst Output 85 5 4 Frequency Sweep 85 5 5 Frequency Sequence 86 5 6 Waveform Se...

Страница 6: ...hing is missing please contact sales office 1 1 2 Connect the power Turn on the instrument only the following conditions are met Voltage 100 240V 50 60Hz 10 100 120V 400Hz 10 Temperature 0 40 Humidity...

Страница 7: ...ont Panel Display power button function keys Number keys CH1 CH2 output CH1 CH2 Sync output Direction keys Knob U disk port Menu soft keys Rear Panel 10MHz clock input output CH1 CH2 Modulation input...

Страница 8: ...nd backspace key move cursor to right Modulate select modulation mode Sweep select sweep mode Burst select burst mode Multiple Channels select multiple channel mode Counter select counter mode Harmoni...

Страница 9: ...rface is shown in right picture Functions which can be chosen by the soft keys can also be selected by touch screen Eg To set phase parameter you can select Phase by pressing it in the menu and also b...

Страница 10: ...he number with the cursor position will decrease one continuously and borrow from the high position Using the knob to input data the number will take effect on that it changed and there is no need to...

Страница 11: ...keys directly and they are Sine Square Other waveforms need to be selected by pressing Arb and they are standard wave mathematical wave linear wave combination wave window function special wave Press...

Страница 12: ...ing If you want to change the frequency from 1kHz to 2 5kHz you can operate as follows Press Freq Period soft key select Freq the frequency parameter backlight turns light Press 2 5 keys to input the...

Страница 13: ...then press mVdc then offset display 500 0mVdc Instrument will output signals according to the setting as follows shown User can also adjust continuously DC offset by using knob and keys 1 5 8 Amplitu...

Страница 14: ...on parameters by using knob and keys 1 5 9 Sum modulation If add a Ramp on the output waveform sum amplitude 50 please operate as following steps Press Modulate then press Type there will be modulatio...

Страница 15: ...e to display modulation type menu press FSK to set modulation type to be FSK then frequency shift keying wave will display in diagram area and the frequency shift keying menu will be displayed too Pre...

Страница 16: ...shown 1 5 12 Burst output If output a burst wave of which burst period 10ms 5 burst counting cycles continuous or single manual trigger please operate as following steps Press Burst mode Burst diagram...

Страница 17: ...annels to enter the coupling mode and display the corresponding menu Press FreqCpl set it to On Press CH1 CH2 to enter continuous work mode Change CH1 s frequency value CH 2 s frequency value will cha...

Страница 18: ...peration and then use it better 2 1 Principle block diagram After the digit analog converter two same channels CHA and CHB are separated Following block diagram is just one of them ADSP FPGA D A Ampli...

Страница 19: ...ification data and then converts to analog voltage through D A and operational amplifier Waveform data is discontinuous sampling data what DDS generator outputs is a staircase sine waveform Higher har...

Страница 20: ...output it can output modulation signals such as FM AM PM PWM SUM FSK PSK ASK OSK etc 3 1 3 Frequency sweep Linear and Log sweep are supported 3 1 4 Burst output it can output burst signals with specif...

Страница 21: ...ise 27 ExpFall 28 LogRise 29 LogFall 30 PosSquare 31 NegSquare 32 PosCube 33 NegCube 34 SquareRoot 35 PosRecipro 36 NegRecipro 37 PNRecipro 38 BiRecipro 39 PosSemicirc 40 NegSemicirc 41 Gaussian 42 Ma...

Страница 22: ...Harmo 93 TriHarmo 94 FourthHarmo 95 FifthHarmo 96 SineFM 97 SineAM 98 SquareAM 99 NoiseAM 100 PulsePWM 101 SineFSK 102 SineFSK 103 SinePSK 104 SineSum 105 SineSweep 106 AmplInc 107 AmplDec 108 BurstNo...

Страница 23: ...y waveforms 165 is harmonic waveform which is used to store harmonic waveform user defined Press Arb and then Built in to display the waveform selection menu and 6 types waveform are listing Standard...

Страница 24: ...modify pulse width value automatically to make it suitable for pulse frequency Edge time it means the hold time pulse wave s rising edge rises from 10 amplitude to 90 or pulse wave s falling edge fal...

Страница 25: ...amplitude setting Amplitude setting and Level setting If use Amplitude setting signal s high level and low level will change simultaneously while its DC offset remains unchanged If use Level setting s...

Страница 26: ...amplitude will fall down as the frequency s rising For arbitrary waveform in its diagram if its peak to peak value doesn t reach the vertical full amplitude then the real output amplitude won t confo...

Страница 27: ...is easier than operation using number keypad No matter DC offset is positive value or negative value switch the knob to right DC level will incerease while it will decrease when switch it to left Whe...

Страница 28: ...ernal load to high impedance Press Res you can set the actual value of external load The amplitude and offset s displaying value will change accordingly when setting for external load changing But the...

Страница 29: ...and may modify the relevant parameters At this time if press Cancel or wait for a minute instrument will cancel the current setting Although the out of range won t damage the instrument the output res...

Страница 30: ...lation waveform but some may be not suitable Press Shape to choose modulation signal s waveform 3 3 6 Modulation source Press Source to choose the modulation source If Internal is chosen instrument wi...

Страница 31: ...1 A If modulation depth is 120 Amax A Amin 0 09A If modulation depth is 100 Amax 0 909A Amin 0 If modulation depth is 50 Amax 0 682A Amin 0 227A If modulation depth is 0 Amax 0 4545A Amin 0 4545A That...

Страница 32: ...ase difference value Phase deviation means carrier phase s variation quantity when modulation signal reaches full amplitude in the phase modulation In modulation signal s positive full amplitude value...

Страница 33: ...ion means in the pulse width modulation the percent of carrier wave s pulse width variation quantity to pulse width setting value when modulation signal reaches full amplitude In modulation signal s p...

Страница 34: ...ate again to enter modulation parameter setting interface to set its parameter 3 7 3 Sum amplitude Press SumAmpl you can set sum amplitude value Superposition amplitude means in sum modulation modulat...

Страница 35: ...modulation type menu press FSK 4FSK nFSK modulation type will be FSK 4FSK nFSK and display the FSK waveform s diagram and menu 3 8 2 Carrier setting Usually sine is used as carrier wave Of course oth...

Страница 36: ...rear panel s Trigger In Out port of CH1 and input the higher from Trigger In Out interface of CH2 When CH2 is set to external trigger Input the lower trigger signal from rear panel s Trigger In Out p...

Страница 37: ...ulation In PSK the phase of output signal hops between carrier phase and hop phase alternately and hop rate depends on shift keying rate 3 9 1 Function selection Press Modulate to enter modulation fun...

Страница 38: ...her from Trigger In Out port of CH2 When CH2 is set to external trigger input the lower trigger signal from rear panel s Trigger In Out port of CH2 and input the higher from Trigger In Out port of CH1...

Страница 39: ...p amplitude alternately and hop rate depends on shift keying rate 3 10 1 Function selection Press Modulate to enter modulation function and then press Type to display modulation type menu press ASK or...

Страница 40: ...c output Sync signal s duty cycle is 50 and sync signal s frequency is equal to Hop rate When carrier amplitude is output sync signal will be low level When hop amplitude is output sync signal will be...

Страница 41: ...nge delay time and burst period value automatically 3 11 6 Cycle numbers press Cycles to set burst signal s cycle numbers Cycle numbers defines the burst signal numbers in a burst period It must be sm...

Страница 42: ...igger signal s output mode If you choose off no trigger signal will be output If you choose Rising edge when burst signal starts to output trigger signal will change from 0 to 1 and remain in 1 When t...

Страница 43: ...ans the lasting time from falling edge s middle point of first pulse to rising edge s middle point of second pulse Two pulse width and time interval s setting is limited not only by double pulse frequ...

Страница 44: ...e width 8ns 3 12 7 Sync output Sync signal s period is equal to double pulse s period sync signal s width is equal to first pulse s width If external or manual trigger is selected sync signal will be...

Страница 45: ...ill occur when output waveform 3 13 5 Harmonic Sequence In order to synthesize a harmonic you should load a harmonic sequence list each sine in this list could have different frequency amplitude and p...

Страница 46: ...he harmonic is synthesized you can press Prev display interface will be switched to graphical interface to show the synthesized harmonic as follows Press Edit the display interface will be switched to...

Страница 47: ...sing Recall File and then press Options HarmoRecall you can load this harmonic sequence document to resynthesize the needed harmonic and display the graphic waveform in screen 3 14 Frequency Sweep 3 1...

Страница 48: ...time represents the time required to sweep from the start frequency to the stop frequency The time interval to sweep from one frequency to next one is constant so more sweep time results in more swee...

Страница 49: ...rising edge and falling edge of sync signal separately corresponds to the start frequency point and marker frequency point If external or manual trigger is selected the Sync signal will be determined...

Страница 50: ...Len soft key and set it to 10 Press List No soft key and set it to 1 Press FreqVal soft key and set it to 100kHz Press NextListNo soft key and No will change to 2 automatically and input frequency va...

Страница 51: ...y list output finish the trigger signal from 0 to 1 3 15 7 Sync Output The cycle of sync signal equals to the time of one frequency list sweep process The rising edge of sync signal corresponds to the...

Страница 52: ...aveform length 21 points and the voltage value of each waveform point is 0 000V The waveform editing interface is shown as follows 1 Voltage scale 2 X cursor 3 Y cursor green line 4 Point scale 5 Edit...

Страница 53: ...serted waveform Modify the required parameters use the original value if there is no modify options After finishing setting to inserted waveform press Back continuously to return to editing interface...

Страница 54: ...splayed if cursor Y is chosen Two cursors are displayed horizontally and vertically if cursor XY is chosen The cursor could be active when X or Y coordinate parameter is chosen 3 16 4 Points Edition T...

Страница 55: ...the selection point and the crossing point of the two cursors will move along the trajectory line of the Sine and show the X andY coordinates of each waveform point When the cursor moves to the X coo...

Страница 56: ...modification for a Sine with 100 points Firstly insert a Sine with 100 points and amplitude 1Vpp Press LinearEdit soft key to enter it s interface as below picture shown Press X1 soft key to set coor...

Страница 57: ...waveforms Inset below three waveforms with different setting user will find the influence that differed settings for waveform caused to inserted waveform from display windows Sinc amplitude is 1 000Vp...

Страница 58: ...selected as the second half of the tangent waveform Press PosSel soft key and set the coordinates of the inserted point to 500 and the crossing point of the white cursor is the position to be inserte...

Страница 59: ...e block insert and block copy operations The waveform blocks are inserted or copied from left to right if X2 is greater than X1 The waveform block is inserted or copied from right to left if X2 is les...

Страница 60: ...elow picture shown 3 16 7 Zoom For complicated waveforms with more waveform points it s difficult to show the fine parts of the waveform in a limited display window Therefore the functions of zoom and...

Страница 61: ...Then instrument will zoom in taking horizontal axis as direction and mark point as center Press X Zoom soft key and set the zoom ratio to 200 waveform point 401 4 000V will be displayed as below pictu...

Страница 62: ...zoom and shift only the local detail of the waveform is shown in the display window Press Recover soft key to resume the three parameters to the initial value then the original appearance of waveform...

Страница 63: ...key to display menu of memory location and select one of them User_arbX then the current waveform is stored as built in waveform and won t lost even power off Please note that the fixed length of the...

Страница 64: ...so require multi waveforms are lined up as sequence according to requirement and each waveform could be set length and times to repeat thus to generate a more longer and complicated waveform The wavef...

Страница 65: ...xecute soft key the setting waveform sequence is output 3 17 3Sample rate Press Sample Rate soft key to set sampling rate of the waveform sequence That is to say the sampling point number in one secon...

Страница 66: ...rs and four Ramp will be output after the second triggers and one third harmonic will be output after third trigger That s to say it takes three effective triggers to finish a complete waveforms seque...

Страница 67: ...e to create a file named Arb_seq1 wseq you do not need to enter an extension and the instrument automatically adds an extension when creating a file Save arbitrary sequence data to a file which is a b...

Страница 68: ...nal 3 18 2 Trigger Level Press Trig level softkey then select Trig levl to configure the desired trigger level value Set the trigger level to be 0 if using AC coupling and adjust the trigger level if...

Страница 69: ...he channels of the instrument have identical characteristic using channel coupling function can easily change the parameter values of multiple channels Channel coupling contains frequency coupling and...

Страница 70: ...and the above formula is no longer applied to When use amplitude coupling function differential signal could be output by the two channels 3 19 5 Coupling parameter Press MultipleParam soft key to en...

Страница 71: ...operating state system update 3 20 2 Locate File The files can be located by the following steps Open directory folder press right key to move the cursor to sub directory area then use up down key to...

Страница 72: ...cal when the quantity files is not big 3 20 3 Create Files Create a file with the required type avoiding replacing the existing file in the saving process Press NewFile soft key pop up Key Board enter...

Страница 73: ...hanges a lot If select Last the generator will automatically recall the last setting that before power off the generator For continuous work user can set the power on state as Last to reduce the repea...

Страница 74: ...latile memory capacity please delete the unnecessary stored data in time 3 21 6 Network setting Press Net Set enables users to set parameters involving network access Press DHCP key to set DHCP on or...

Страница 75: ...update The suffix of update package is lum Suppose the update file name is software lum copy it to a USB flash disk with FAT32 format then insert the USB to the USB Host interface in the front panel...

Страница 76: ...clock access will be shown at the same time Ext Ref On will display in status bar If disconnect external clock prompt message External clock removal will be shown information referred to external clo...

Страница 77: ...is served as the output port to output the internal trigger signal to trigger other devices Press TrigOut soft key If rising edge is selected the signal of the trigger port is logic high level when th...

Страница 78: ...rol for the instrument For detail instruction please refer to CD 3 25 4 LoRa Ant port in rear panel transmit and receive antenna 3 26 Default Setting 3 26 1 Continuous output default continuous output...

Страница 79: ...linear Sweep Time 5s Trigger Source internal Remain Time 0s Trigger Output close 3 26 7 Frequency Sequence Sample Rate 1Hz Trigger Source Internal Sequence Length 20 Trigger Output closed Sequence Mo...

Страница 80: ...ed within 5Vrms The output signal will be distorted beyond the limitation 3 27 3 Frequency range The frequency range of the power amplifier is 1Hz to 150kHz Within the range the distortion of Sine is...

Страница 81: ...from instrument After taking it from instrument three jacks in rear panel will be seen There is AC220V inside the three jacks so touch or insert conductive part or other dangerous action is strictly f...

Страница 82: ...p or replace these defective ones based on the detailed provisions of the warranty Except guarantees of this outline and warranty we factory make no any other forms of expressed or implied guarantees...

Страница 83: ...g Sine Square Ramp Pulse Noise DC PRBS Pseudorandom Binary Sequence User defined Arbitrary User defined Harmonic and so on Sample rate 250MSa s Amplitude resolution 16 bits 5 1 2 Sine Harmonic Distort...

Страница 84: ...ive and negative pulse Trigger source Internal external 5 1 6 Ramp Symmetry 0 0 100 0 5 1 7 Arbitrary Waveform Sample Mode Point by point Sample rate 1 Sa s 125MSa s Waveform Length 2 8K points step 1...

Страница 85: ...DC offset High Z Range 10Vpk ac dc Resolution 1mVdc Accuracy setting value 1 amplitude value 0 5 2mV see note1 5 1 12Polarity and Phase Output Polarity positive or negative Output Phase 0 00 to 360 00...

Страница 86: ...xternal 5 3 Burst Output 5 3 1 Burst Waveform Sine Square Ramp and etc 5 3 2 Burst Mode Triggered Gated 5 3 3 Burst Period 1 s to 600s 5 3 4 Burst Signal Frequency 2mHz Upper Frequency limits 5 3 5 Bu...

Страница 87: ...n 1 512 5 6 4 Sequence length 2 512 5 6 5 Trigger source Internal external manual 5 7 Channel Coupling 5 7 1 Coupling direction CH1 CH2 CH2 CH1 5 7 2 Frequency Coupling Frequency ratio frequency diffe...

Страница 88: ...working mode 5 9 3 Output level TTL compatible 5 9 4 Output impedance 50 typical value 5 10 Modulation Trigger Input Trigger Output 5 10 1 Modulation Input 2 5Vpp full value Input Resistance 10k 5 10...

Страница 89: ...haracteristics 5 14 1 Power Voltage AC 100 240V 50 60Hz 10 AC 100 120V 400Hz 10 Power Consumption 40VA 80VA if amplifier power is selected 5 14 2 Environmental Conditions Working Temperature 0 40 Humi...

Страница 90: ...to 200kHz 5 16 2 Voltage Amplifier double 5 16 3 Output Power 8W load 8 2W load 50 Frequency 100kHz 3W load 8 1W load 50 Frequency 200kHz 5 17 IOT interface option 5 17 1 Band Limits 398MHz 525MHz 5...

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