DCT | Test and Measurement

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Direct Digital Synthesis Signal Generator SFG-1000 Series, an economic function generator with high accuracy and high stability output, is designed based on the DDS (Direct Digital Synthesis) technology embedded in a large scale FPGA.


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  • DDS Technology and FPGA Design
  • Frequency Range : 0. 1Hz ~ 3MHz
  • High-Frequency Accuracy : 20ppm
  • High Frequency Stability : 20ppm
  • Max. Frequency Resolution : 100 mHz
  • Low Distrortion Sine Wave : -55dBc, 0. 1Hz~200 kHz
  • Voltage Display ( Only SFG-1013)


The frequency range of 3MHz and the output waveform selection as Sine, Square, Triangle and TTL of SFG-1000 Series adequately provide the fundamental features to ensure high confidence for the test results. The DDS technology at an affordable price gives a high-value solution to the users who need a signal source for accurate but unsophisticated measurement applications.


Stable Signal Source

The frequency drift and the amplitude instability of conventional signal sources are fatal uncertainties to the high-accuracy
measurements. SFG-1000 Series employs PLL (Phase-Locked Loop) circuitry to generate
a stable waveform at 20ppm accuracy & stability covering the frequency range from 0.1Hz up to 3MHz. When SFG-1000 Series is utilized to conduct experiments in the laboratory, it secures the signal source reliability, which is beyond the reach of any traditional signal generators.


Low Distortion

To most test engineers, it is always an annoyance to get rid of the ringing from the signal source being used to stimulate the DUT. The high precision measurements need to employ a signal source without harmonic components, which adhere to the oscillator of conventional signal generator circuits. SFG-1000 Series, built over a DDS platform, generates the waveform through a high-performance DAC and high-speed comparator to effectively avoid the generation of harmonic components.
Utilizing direct digital synthesis technology, SFG-1000 Series provides an output waveform with 55dBc low distortion ranging from 2mVpp to 10Vpp output level. At the press
of a button, you get a stable and high-purity output signal from SFG-1000 Series immediately.


User-Friendly Human Interface

the thoughtful human interface of the SFG-1000 Series gives users a friendly
operating environment. There is no need to go through a long and tedious learning curve to get used to the operations of the product. The key operation functions and the output on/off control are the advanced features that could only be seen on high-end devices. You could enjoy all these conveniences at a very affordable cost.


All-Around Functionality

A signal output with selectable waveform among Sine, Square and Triangle, and an additional signal output at TTL level are included in SFG-1000 Series. The output control features include frequency adjustment,
+/-5V DC offset and 40dB attenuation. All the fundamental features of a signal generator are well equipped on SFG-1000 Series with high accuracy and stability. Combining convenience, accuracy and economic cost, SFG-1000 Series 3 represents the beauty of GW Instek’s design.

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Israel's Leading Businesses Choose DCT

DCT’s Skilled Management Team has more than twenty-five years of experience and expertise in the local business environment, coupled with a highly motivated group of employees, positions us as the preferred supplier among the major customers in the industry.

DCT Competitive Edge is the prompt response to our customer needs, the online and on-site direct technical support, professional consulting for the best cost/performance solution, on-time delivery, long-term maintenance, and support.

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