PeakTech TFG1900A Series User Manual

Function/arbitrary waveform generators

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User's Guide
TFG1900A Series Function/Arbitrary
Waveform Generators
Shijiazhuang Suin Instruments Co.,Ltd.
08/2011

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Summary of Contents for PeakTech TFG1900A Series

  • Page 1 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators Shijiazhuang Suin Instruments Co.,Ltd. 08/2011...
  • Page 2 TFG1900A Series Function/Arbitrary Waveform Generators Introduction of TFG1900A Series Function/Arbitrary Waveform Generators The present guide is valid for three models of TFG1900A Series Function/Arbitrary Waveform Generators: TFG1903A, TFG1905A, TFG1910A and TFG1920A, the highest sine wave frequency of which are respectively 3MHz, 5MHz, 10MHz and 20MHz.
  • Page 3 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators  Burst characteristics: output burst signal of which the number has been set.  External trigger: external trigger is available under frequency sweeping, FSK modulation and burst function.  Frequency measurement: be of the function of frequency measurement function.
  • Page 4 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators TFG1900A Series Function/Arbitrary Waveform Generators and accessories  TFG19xxA Series Function/Arbitrary Waveform Generator  3-core power cord  CD And the following contents are included in CD: USB Driver programmer Remote control demonstration software Waveform edition software User’s Guide...
  • Page 5 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators Summary of this Guide Chapter 1 Getting started To learn the basic operation of the generator now. Chapter 2 Principle introduction To describe the basic working principle of the generator. Chapter 3 Reference To introduce the functions, operations and applications of the generator in detail.
  • Page 6: Table Of Contents

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators Content Chapter 1 Getting started ---------------------------------------------------------------------5  Prepare the generator for use ---------------------------------------- -------------------5  Front and rear panel ---------------------------------------------------------------------6  Display introduction --------------------------------------------------------------------7  Keyboard introduction ----------------------------------------- -------------------------7  Basic operation --------------------------------------------- -----------------------------9...
  • Page 7: Chapter 1 Getting Started

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators Chapter 1 Getting started The front and rear panels, operations and functions of the TFG1900 series function generator are described in this chapter so as to help users to master the basic operation as quickly as possible. The main contents of this chapter are as follows: 1.1 Prepare the generator for use...
  • Page 8 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators 1.2 Front panel 1. Power switch 2. Function keys 3. CHA output 4. CHB output 5. SYNC output 6. Arrow keys 7. Display screen 8. Number keys 9. Adjusting knob Rear panel 1. Modulation in 2. Trig in 3.
  • Page 9: Display Introduction

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators 1.4 Display introduction The display screen display two groups of digits, the group on the left with 6 digits shows frequency, period and attenuation and so on of the signals. And the 5 digits on the right show amplitude, offset, duty cycle and so on of the signals.
  • Page 10: Basic Operation

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators 【 Output 】 key: open and close output signal circularly. 【 Sine 】 【 Square 】 【 Ramp 】 【 Pulse 】 keys: shift keys, select respectively sinewave, square, Ramp and pulse four common waveforms fast.
  • Page 11 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators Below are some samples to describe the basic operation of the generator, for more complex usage and problems, please refer to the details in chapter 3. 1.6.1 CHA continuous function: CHA outputs stable and continuous signal with continuous.
  • Page 12 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators AB phase difference setting: set the phase difference of CHA and CHB as 90° Press 【 Menu 】 key, select “Phase” option and press 【 9 】【 0 】【 ° 】 . Other parameter setting of CHB is the same as the one of CHA.
  • Page 13 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators Press 【 Menu 】 key, select “Devia” option and press 【 1 】【 8 】【 0 】【 ° 】 . Modulation waveform setting: set modulation waveform as square Press 【 Menu 】 key, select “Shape” option and press 【 1 】【 # 】 .
  • Page 14 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators Press 【 Sweep 】 key to output frequency sweeping signal. Start frequency setting: set the start frequency as 5kHz Press 【 Menu 】 key, select “Start” frequency and press 【 5 】【 kHz 】 .
  • Page 15: Chapter 2 Principle Introduction

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators Chapter 2 Principle introduction This chapter describes the basic concept of signal shaping and internal operation of the generator, to help users to learn more about the performance and specifications, then operate the generator more smoothly.
  • Page 16: Control Working Principle

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators quantized first, and then taking x as the address and y as the quantized data to store them into waveform memorizer. DDS uses phase adding technique to control the address of waveform memorizer. Add a phase increment on the present result of phase accumulator in each sampling clock period so as to change the output frequency value by change phase increment.
  • Page 17: Chapter 3 Reference

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators Chapter 3 Reference Data input Select an option and input with the numeric 3.1.1 Input with the numeric keys keys the parameters of this option. The ten digit keys are of the function of inputting data from left to right one by one.
  • Page 18 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators Press 【 Freq 】 key, the light of which will be on, press 3.2.1 Frequency setting “Hz” unit to display present frequency value. Input frequency value with numeric keys or adjusting knob and the signals of this frequency will be o utput from the output port.
  • Page 19 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators operations, but the generator has fixed attenuation functio n to avoid this circumstance. Input attenuation values of 0dB , 20dB, 40dB and 60dB with the numeric keys, input 80dB to select auto attenuation. Users may use the adjusting knob as well, the attenuation changes to next one for every step of the rotation.
  • Page 20 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators When it comes to adjust the DC offset of the output signals, it is more convenient to use the adjusting knob than the numeric keys. As usual, taking no account of the sign...
  • Page 21: Chb Continuous

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators in a relationship as below formula: Duty cycle× Period≥2× Edge time or Duty cycle ×Period≤ Period - (2× Edge time) When the present selection of waveform is Ramp, press 3.2.11 Symmetry setting 【 Duty 】 key, the “Duty” keyboard light will be on and the generator display current symmetry value, input symmetry value with numeric keys or adjusting knob, then the output will be a Ramp with a fixed symmetry value.
  • Page 22 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators from CHA and CHB could be set in advance. It is meaningless to set phase difference when the frequencies of CHA and CHB are different. The settings of other parameters of CHB is the same as the one of CHA.
  • Page 23 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators 《 Modulation In 》 port on the rear panel of the generator. When external modulation signal reaching to full amplitude as ±5V, the display of frequency deviation accords with its real value. Or the display of frequency deviation is incorrect.
  • Page 24 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators modulation waveform by setting waveform No.,the modulation waveform may be any one of the 16 kinds of waveforms listed in the waveforms table. 3.5.4 Modulation source: press 【 Menu 】 key, select “Source” option and then set modulation source, there are only two values to choose: 0 and 1.
  • Page 25: Pwm

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators 3.6.4 Modulation source: press 【 Menu 】 key, select “Source” option and then set modulation source, there are only two values to choose: 0 and 1. Set the value as 0 to choose internal modulation source, and set it as 1 to choose external modulation source.
  • Page 26: Fsk

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators 3.7.4 Modulation source: press【Menu】key, select “Source” option and then set modulation source, there are only two values to choose: 0 and 1. Set the value as 0 to choose internal modulation source, and set it as 1 to choose externa l modulation source.
  • Page 27: Frequency Sweeping Function

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators trigger source is chosen, connect a TTL trigger signal to the 《 Trig In 》 port on the rear panel of the generator. When the trigger signal is with logic low level, the frequency of output signal is the carrier frequency.
  • Page 28 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators point to the end frequency point. The sweep time of every frequency point is the same, so the longer the sweep time is, the more frequency points are swept, the less the step of the frequency point is, and the finer the sweep is. The shorter of the sweep time is, the less frequency points are swept, the more the step of the frequency point is, and the rougher the sweep is.
  • Page 29: Burst

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators the falling edge is match along with the middle point of the sweeping area, the period of the pulse wave is the same with sweeping time. Under sweeping function, press 【 Sweep 】 key(the “Sweep” key-light will be off) to exit frequency sweeping function and return back to continuous function.
  • Page 30: Arbitrary Waveform

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators trigger source, and set it as 1 to choose external trigger source. When choosing external trigger source, burst output will stop, then each time you press 【 Shift 】 【 trig 】 keys, the generator will output a burst, then keep on the start phase and wait for next trigger.
  • Page 31 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators middle editing points increased one by one. F. press 【 Menu 】 key and select “Vdc” unit to set vertical voltage value, of which the setting range is -10V ~ +10V, if you need cycle of waveform continuous, you must make the vertical voltage values of points 0°...
  • Page 32: Setting Parameter Storage

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators 3.11.3 Waveform storage: regardless of downloaded from PC using software or edited using the keyboard, the user-defined waveforms data are stored in volatile memory, they will vanish on turning off the generator. If you want to preserve the waveform for a long time, please store the data.
  • Page 33: External Memory

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators only store with the keyboard. 3.12.2 Setting parameter recall: after finishing the setting parameter storage and under CHA tone, press 【 Menu 】 key and select “Recall” option to set one memory area number within 0# ~ 5#, then press 【 # 】 key to recall the setting parameter stored in this memory area.
  • Page 34: Output Port

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators Connect the signal to be tested to the 《 Count In 》 port on the rear panel of the generator, press 【 Count 】 key and the “Count” keyboard indicator will be on, and a twinkling “Gate”...
  • Page 35 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators open signal output port. 3.15.2 Signal output port 《 CHB 》 : the signals of CHB are all output from this output port, the characteristics of which is the same as the one of 《 CHA 》 .
  • Page 36: Input Port

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators manual trigger is selected, the frequency of the sync signal was determined by the trigger signal. 3.16 Input port There are three input ports on the rear panel of the generator, which could only be used as external signal input port, and not signal output port.
  • Page 37 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators Press 【 Menu 】 key to display calibration value on 3.18.2 Parameters calibration the left, and calibration sequence number on the right when setting calibration conditions automatically. Adjust calibration value to calibrate present selected calibration option and make the output expected.
  • Page 38: Default Setting

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators parameters stored during last calibration. 3.19 Default setting 3.19.1 Continuous function of CHA and CHB: continuous function is default after booting. Waveform: sinewave Frequency: 1kHz Amplitude: 1Vpp Duty cycle: 50 % Attenuation: Auto Offset: 0Vdc Symmetry: 50 %...
  • Page 39 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators 4.2 Contact us If you have any questions or inconvenient during the use of our products please do not hesitate to contact us. Monday thru Friday 8: 00-17: 00 Telephone: +86-311-86086971 Fax: +86-311-86018511 E-mail address: export@suintest.com...
  • Page 40: Chapter 5 Specifications

    User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators Chapter 5 Specifications (see note 1) 5.1 Output characteristics of CHA and CHB 5.1.1 Waveform characteristics Standard waveforms: Sine, Square, Ramp, Pulse, Noise, Exponent, Logarithm , SINC, half- round, Cardiogram, Quake. Arbitrary: 5 waveforms 5.1.2 Sinewave spectral purity...
  • Page 41 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators Amplitude flatness (Sinewave, compared to 1MHz, 5Vpp): ±10 % 5.1.7 Offset characteristics (amplitude 0Vpp) Offset range: ±5Vdc(50Ω load) ±10Vdc(open-circuit load) Resolution: 2mVdc Offset accuracy: ±(setting value×1 %+ 20mVdc) 5.1.8 Phase characteristics Output mode: positive/opposite Phase difference CHA and CHB: 0°...
  • Page 42 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators 5.3 Frequency sweeping characteristics of CHA Sweeping waveform: 16 kinds of waveforms of sine, square, Ramp and so on. Sweeping range: Start and stop frequency can be set arbitrarily Sweeping time: 50ms to 500s...
  • Page 43 User’s Guide TFG1900A Series Function/Arbitrary Waveform Generators 5.9 Programmable interface USB device interface, USB host interface 5.10 General characteristics 5.10.1 Power condition: Voltage: AC 100 ~ 240V Frequency: 45 ~ 65Hz Power consumption: < 30VA 5.10.2 Environment conditions: Temperature: 0 ~ 40℃...

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