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TFG6800 Series Function/Arbitrary Waveform Generator Users’ Guide

Suin Instruments Co., Ltd

wave. Harmonic synthesis function actually is linear superposition of N-th Sine. You can set n-th

harmonic randomly, even without fundamental wave. Please pay attention that harmonic

frequency can’t exceed the upper frequency limits of device.

3.13.3 Harmonic phase

: Harmonic phase means harmonic’s start phase. If harmonic phase is

different, the synthesized arbitrary waveform will be different.

3.13.4 Harmonic amplitude

: Harmonic amplitude is ratio of harmonic to fundamental amplitude

and presented by percentage. If harmonic amplitude is set to 0%, this harmonic will not affect. The

amplitude of each harmonic could be set randomly. If the amplitude value of final synthesized

arbitrary waveform exceeds the amplitude limits of device, the complete waveform could be

shown in the graphic interface but amplitude limiting will 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 phase. For

example, we use fundamental wave, 3-harmonic and 5-harmonic to synthesize a harmonic, with

the harmonic sequence list as follows:

Harmonic Number

Harmonic Order

Harmonic phase

Harmonic amplitude

0.0°

100%

90.0°

30%

0.0°

20%

Operation steps are as follows:

Press

【】

, enter into fundamental interface and set it’s amplitude to 1.0000v.

Press

【

Harmonic

】

, enter into harmonic interface.

Press

〖

Number

〗

, set No. to 2 to set the first Harmonic.

Press

〖

Order

〗

, and set to 3, that’s 3

harmonic.

Press

〖

Phase

〗

, and set it to 90.0

Press

〖

Ampl

〗

, and set it to 30.0%.

Press

〖

〗

, No. will become 3 then user can start to set second harmonic wave.

Press

〖

Order

〗

, and set to 5, that’s 5

harmonic.

Press

〖

Phase

〗

, and set it to 0.0

Press

〖

Ampl

〗

, and set it to 20.0%.

3.13.6 Harmonic synthesis

: After harmonic sequence list is loading, press

〖

Execute

〗

, instrument

will synthesize each named harmonics to one harmonic. The longer the loaded harmonic sequence

Summary of Contents for TFG6800 Series

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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