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Synthesized Function Generator
SFG-2000/SFG-2100 Series
USER MANUAL
GW INSTEK PART NO. 82FG-21200MD
ISO-9001 CERTIFIED MANUFACTURER
This manual contains proprietary information, which is protected by
copyrights. All rights are reserved. No part of this manual may be
photocopied, reproduced or translated to another language without
prior written consent of Good Will company.
The information in this manual was correct at the time of printing.
However, Good Will continues to improve products and reserves
the rights to change specification, equipment, and maintenance
procedures at any time without notice.
Good Will Instrument Co., Ltd.
No. 7-1, Jhongsing Rd., Tucheng City, Taipei County 236, Taiwan.
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Related Manuals for Good Will Instrument SFG-2000 Series
Summary of Contents for Good Will Instrument SFG-2000 Series
- Page 1 However, Good Will continues to improve products and reserves the rights to change specification, equipment, and maintenance procedures at any time without notice. Good Will Instrument Co., Ltd. ISO-9001 CERTIFIED MANUFACTURER No. 7-1, Jhongsing Rd., Tucheng City, Taipei County 236, Taiwan.
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Page 2: Table Of Contents
Table of Contents SFG-2000 Series User Manual FREQUENCY MODULATION........... 38 Table of Contents COUNTER INPUT ............40 SAFETY INSTRUCTIONS ........... 5 Safety Symbols............5 STORE/RECALL SETTING..........42 Safety Guidelines ............. 6 GETTING STARTED ............9 APPLICATION EXAMPLES ..........44 Technical background ..........10 Reference Signal for PLL System ...... -
Page 3: Safety Instructions
SAFETY INSTRUCTIONS SFG-2000 Series User Manual Safety Guidelines Do not place any heavy object on SFG-2000 series. General Guideline • AFETY INSTRUCTIONS Avoid severe impacts or rough handling that leads to • damaging SFG-2000 series. CAUTION Do not discharge static electricity to SFG-2000 series. - Page 4 Power cord for the United Kingdom • detergent and water. Do not spray any liquid into When using SFG-2000 series in the United Kingdom, make sure the power SFG-2000 series. cord meets the following safety instructions. Do not use chemicals or cleaners containing harsh •...
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Page 5: Getting Started
GETTING STARTED SFG-2000 Series User Manual Technical background SFG-2000 series uses the latest Direct Digital Synthesis Traditional ETTING STARTED (DDS) technology to generate stable, high resolution function output frequency. The DDS technology solves several generators problems encountered in traditional function generators, as follows. -
Page 6: Lineup/Features
GETTING STARTED SFG-2000 Series User Manual Lineup/Features DDS synthesizer consists of Phase accumulator Block diagram (counter), lookout table data (ROM), Digital-to-analog converter (DAC), and Low-pass filter (LPF). Series lineup Frequency Features Control Word (K) Duty Offset TTL/ Sweep Counter 28bit... -
Page 7: Front Panel
GETTING STARTED SFG-2000 Series User Manual Shows the waveform frequency, Main display Front Panel counter frequency, and duty cycle. (7 segment) For SFG-2100 series only. In the SFG-2100 series front panel counter mode, indicates that the leftmost digit (100MHz) is hidden... - Page 8 GETTING STARTED SFG-2000 Series User Manual STORE Indicates the waveform shape: Sine, Stores the parameter setting Square, and Triangle. For details, (page42). see page26. RECALL Recalls the parameter setting Indicates that the Shift key is (page42). pressed. Recalls the default parameter Indicates the output frequency: setting (page43).
- Page 9 GETTING STARTED SFG-2000 Series User Manual AMPL SWEEP SPAN Sets the sine/square/triangle waveform This knob is available in SFG-2100 Amplitude/ Sweep span amplitude. Turn left (decrease) or right series only. It becomes effective in Attenuation control (increase). sweep mode and AM/FM mode.
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Page 10: Rear Panel
GETTING STARTED SFG-2000 Series User Manual Rear Panel Set Up Pull out the Tilt stand handle sideways and rotate it. Place SFG horizontally, Or tilt stand. External AC Voltage AC Power Modulator Selector Input Input Accepts the modulation signal from external device. -
Page 11: Operation Shortcuts
GETTING STARTED SFG-2000 Series User Manual 1. Select the AC voltage on the rear Power up Operation Shortcuts panel accordingly. AC 100/110/120V→select 115V. AC 220/230/240V→select 230V. Here are the collections of operation example shortcuts. 1. Press Wave key and select Sine... -
Page 12: Default Setting Contents
GETTING STARTED SFG-2000 Series User Manual Linear Sweep, 1. Press Wave key and select Sine Counter input, 1. Press Shift + 1 (Counter) WAVE 1kHz start, 2. Press 2 + 5 + 0 + Hz/% key sine wave 1MHz Hz/% Sine wave 250Hz 3. -
Page 13: Sine/Square/Triangle Wave
SINE/SQUARE/TRIANGLE WAVE SFG-2000 Series User Manual Select the waveform INE/SQUARE/TRIANGLE WAVE Sine / Square Press key repeatedly. The corresponding icon appears on the display. / Triangle Sine waveform. WAVE Square waveform. Triangle waveform. OUTPUT The waveform comes out from the main Ω... -
Page 14: Set The Duty Cycle (Square Waveform)
SINE/SQUARE/TRIANGLE WAVE SFG-2000 Series User Manual Left cursor key moves the active Edit Set the Duty Cycle (Square Waveform) cursor left. frequnency The duty cycle setting is not available in sine/triangle waveform. DUTY Press the Shift key, then 7 to Enter duty enter duty cycle editing mode. -
Page 15: Set Amplitude
SINE/SQUARE/TRIANGLE WAVE SFG-2000 Series User Manual Set Amplitude Set Offset Turn the Amplitude knob right AMPL SFG can add or delete offset to the sine/square/triangle Normal Activate (increase) or left (decrease). waveform, thus changing the waveform vertical position. output offset Use the OFFSET knob. -
Page 16: Ttl Cmos Output
TTL CMOS OUTPUT SFG-2000 Series User Manual Select the waveform TL CMOS OUTPUT Press Shift key, then 9. The TTL sign TTL/CMOS appears on the display. The TTL/CMOS output is always On when the square wave activated. Push/pull the TTL/CMOS knob to TTL/CMOS select the waveform. -
Page 17: Set The Duty Cycle
TTL CMOS OUTPUT SFG-2000 Series User Manual Left cursor key moves the active The editing knob changes the Edit Edit duty cursor left. value, and the cursor keys frequency cycle moves the active digit (same as entering frequency). When inactive for 5 seconds, the display automatically Right cursor key moves the active goes back to previous mode (frequency view). -
Page 18: Sweep
SWEEP SFG-2000 Series User Manual Sweep time sets the time it takes for a single sweep from Set Sweep the start frequency to the end frequency. Time WEEP Rotate the SWEEP TIME knob, right (fast) or left (slow). SFG can add sweep to the waveform output, a convenient tool for measuring the frequency response of the DUT. -
Page 19: Amplitude Modulation
AM % (FM Dev). SWEEP SPAN 0 ~ 100% Range SFG-2000 series uses an internal 400Hz sine wave as the Use external 2. Turn the knob left (shallow) or default modulating signal. modulating right (deep). 1. Connect the modulating signal to the rear panel... -
Page 20: Counter Input
300kHz ~ 19.7MHz SFG-2120 COUNTER 2. EXT and COUNT sign appear on the display. INPUT SFG-2000 series uses an internal Use external 400Hz sine wave as the default modulating modulating signal. 3. The display shows the input signal frequency. -
Page 21: Store/Recall Setting
COUNTER INPUT SFG-2000 Series User Manual The following table shows the relationship between Gate time / counter frequency, gate time, resolution, and display. Resolution table Input Gate Resolution Display TORE/RECALL SETTING time 0.01s 100µHz 1.0000Hz 0.1s 10µHz 1.00000Hz 1µHz 1.000000Hz 100nHz 1.0000000Hz... -
Page 22: Application Examples
STORE/RECALL SETTING SFG-2000 Series User Manual Press the shift key, then 2 to recall Recall the the default panel setting. default panel setting PPLICATION EXAMPLES The “done” message appears. Reference Signal for PLL System The panel is updated with the default setting. -
Page 23: Transistor Dc Bias Characteristics Test
Use the triangle wave output from SFG-2000 series to Description check the amplifier output distortion caused by overload. Use SFG-2000 series as the signal source for a transistor. Description The common sine wave is not the ideal source in this Compare the transistor input/output waveform using the case. -
Page 24: Logic Circuit Test
Logic Circuit Test 1. Apply a triangle waveform to the amplifier first. Test step Adjust the waveform amplitude to make sure there is Use the TTL/CMOS output from SFG-2000 series to Description no clipping. test digital circuits. Observe the timing relation of 2. -
Page 25: Speaker Driver Test
Sweep for Speaker Test Use SFG-2000 series for testing the frequency Description characteristics of audio speakers. Record the volt reading Use the sweep feature in SFG-2000 series for testing the Description versus the input signal frequency. frequency response of an audio speaker. -
Page 26: Faq
SFG-2000 Series User Manual PPENDIX ● I pressed the Power key on the front panel but nothing happens. Error Messages ● How can I get out of Counter/Sweep/Modulation/TTL/−20dB mode? ● The device accuracy does not match the specification. Frequency Sine and square wave frequency over range. -
Page 27: Specification
Instruction Manual x 1, Power Cord x 1 < ± 0.3dB, 0.1Hz ~ 1MHz Accessories GTL-101 x 2 (SFG-2100 Series) < ± 0.5dB, 1MHz ~ 4MHz GTL-101 x 1 (SFG-2000 Series) Flatness < ± 2dB, 4MHz ~ 10MHz Dimension 107 (W) x 266 (H) x 293 (D) <... -
Page 28: Index
APPENDIX SFG-2000 Series User Manual Declaration of Conformity INDEX GOOD WILL INSTRUMENT CO., LTD. (1) No.7-1, Jhongsing Rd., Tucheng City, Taipei County, Taiwan setup ..........28 (2) No. 69, Lu San Road, Suzhou City (Xin Qu), Jiangsu Sheng, China duty cycle error ........ 28, 52 declare, that the below mentioned product 20dB attenuation........ - Page 29 INDEX symbol..........5 UK power cord........8 main feature list ........12 setup step..........20 memory recall sine wave example setting ........24 example setting ......... 22 memory store selection ..........26 example setting ........24 speaker application example... 49, 50 model lineup ...........12 specification ...........
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