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High Precision Digital Dual Channel DDS Function Signal Generator Sine/Square Waveform Frequency Meter Counter 12MHz

High Precision Digital Dual Channel DDS Function Signal Generator Sine/Square Waveform Frequency Meter Counter 12MHz

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The Dual Channel Function Signal Generator from this series is a multi-functional signal generator(also a counter and frequency meter) with high precision and high performance. It adopts large scale of FPGA integrated circuits, high-speed MCU microprocessor and SMT in the inner circuit, which can greatly improve the anti-interference and lifetime of the instrument. It has entirely independent dual-channel DDS signal and TTL level output, can generate signals of sine/triangle/square/sawtooth/pulse wave, step wave, etc. This instrument is of great advantage in generating signal, scanning waveform, measuring parameters, etc. It's an ideal testing or measuring instrument for electronics engineer, electronic laboratory, teaching and researching. 

Adopts DDS direct digital synthesis technology, can generate precise, stable output signals with higher distortion.
With independent channel indicators and channel operation keys, LCD 1602 display, more convenient for the operation.
Completely independent dual-channel output, can work in sync, phase difference is adjustable.
High frequency resolution: total range frequency resolution is 10mHz.
The duty ratio of each channel can be adjusted independently.
DC offset adjustment range is -10V to 10V, the resolution is 0.1V.
Digital signal output function, CMOS output range 0~10V.
Pulse wave function: in different frequency situation, still keep the pulse width set by user, the pulse width adjustment range is 10nS~1S.
Output various of waveform: such as sine/triangle/square/sawtooth wave, pulse wave, step wave, TTL level, DC voltage.
All functions are digitally controlled, precise and stable.
Can scan frequency, with linear sweep and logarithmic frequency sweep modes(Max. up to 999s).
Storage characteristics: can store 20 groups parameters set by the user.
Frequency meter and counter functions: with 60MHz frequency meter, frequency measurement, duty cycle measurement and counting function for internal/external signals.
Input overvoltage protection: the power supply range is AC 85V to AC 240V.
Output short-circuit protection: all signal output can work above 60s in load short-cireuit situation.

Frequency Parameters
Frequency Range Sine Wave Normal Modes(Optional): 0Hz~6MHz / 0Hz~8MHz / 0Hz~10MHz / 0Hz~12MHz
Square Wave 0Hz~6MHz
Triangle Wave 0Hz~6MHz
Sawtooth Wave 0Hz~6MHz
Pulse Wave 0Hz~6MHz
TTL/CMOS Wave 0Hz~6MHz
Other Waveform 0Hz~6MHz
The Min. Frequency Resolution 10mHz (0.01Hz)
Frequency Accuracy (+/-)5*10^(-6)
Frequency Stability (+/-)1*10^(-6)/3 Hours
Phase Adjustment Range 0~359°
Phase Resolution
Waveform Parameters
Waveform Types Sine/Triangle/Square/Sawtooth/Pulse Wave, Step Wave, TTL level, DC voltage
Sine Wave Harmonic Suppression ≥45dBc(<1MHz); ≥40dBc(1MHz~20MHz)
Total Harmonic Distortion <0.8%(20Hz~20KHz, 0dBm)
Square Wave Rise/Fall Time ≤20ns
Overshoot ≤7.5%
Duty Cycle 1%~99%
Sawtooth Wave Linearity ≥98% (0.01Hz~10KHz)
Pulse Wave Pulse Width Adjusting Range 10nS~1S
Rise/Fall Time ≤20ns
TTL Output Level Amplitude >3Vpp
Fan-out >20 TTL Load
Rise/Fall Time ≤20ns
CMOS Output Low Level <0.3V
High Level 1V~10V
Level Rise/Down Time ≤20ns
Output Parameters
Amplitude Range(Peak to Peak) 0Vpp~20Vpp
Amplitude Resolution 1mVp-p (-20dB Attenuation)
Amplitude Stability (+/-)0.5%/ 5 Hours
Amplitude Flatness (+/-)5%(<10MHz); (+/-)10%(>10MHz)
Waveform Output
Output Impedance 50Ω(+/-10%) (Typical)
Protection All signals output can work above 60s under the condition of load short circuit
DC Offset
Offset Adjustment Range (+/-)10V
Offset Resolution 0.1V
External Measurements
Frequency Measuring Range

GATE-TIME=1S 1Hz - 60MHz

Input Voltage Range 1Vpp~20Vpp
Counting Range 0~4294967295
Periodic Measurement 20ns Resolution, the Max. Measurable 20s
Scanning Function
Scan Mode Linear Sweep, Logarithm Sweep
Scan Object Frequency
Scan Time 1s-999S/Step
Frequency Setting Range Start Point and End Point can be set arbitrarily
Frequency Scan Range It is determined by the sweep parameter settings
General Parameters
Memory Quantity 20
Location 01 to 20 (01 for default value)
Interface Interface Mode Using USB to Serial Interface
Communication Speed 9600bps
Protocol Command Line Mode, Protocol Complete Open
Power Supply Voltage Range AC 85V to AC 240V
Display Display Type LCD 1602 Display
Environment Temperature: 0~40°C Humidity: <80%
Size 20 * 19 * 9cm / 7.87* 7.48 * 3.54in (L * W * H)
Weight 608g / 21.46oz
Package Size 25 * 21 * 11cm / 9.84 * 8.27 * 4.33in (L * W * H)
Package Weight 950g / 33.54oz

Package List:
1 * DDS Signal Generator
1 * Power Cord
1 * USB Cable
2 * Signal Output Cable
1 * CD


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Customer Reviews

Average Rating:


based on 14 Customer Reviews

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  • By L. F. Lederer

    September 27, 2017

    It's darn good. The signals are crisp and clear on my analog scope. The amplitude settings seem dead on. The software is a big plus (must), making it very easy to setup and designing arbitrary waveforms which adds some flexibility to the unit. There is third party software available as well for developing your even more arbitrary waveforms. I also liked that you can output to both channels at the same time and with totally different waveforms and frequencies.It also came with a handy TTL interface that plugs into the back of the unit. As stated in an other review the 25 MHz model only puts out a sine wave at that frequency. All other waveforms are limited to around 6 MHz before they start to distort. And at 25 MHz they all looked like a sine wave. The frequency counter seems to work OK but I don't have a calibrated device to measure its accuracy. Three negatives. One the manual is definitely lacking clarity on the operation and functionality of the instrument. Two, the software on the CD was corrupted and it took me nearly a day to find their website, no thanks to the seller in helping me. It took three tries to download the 110 MB file and nearly two hours on the final try as their download speed averaged about 350 kbps (sic). Three, selecting a waveform, frequency, retrieving or storing to memory and selection of other functions is clunky without the software. Some of the buttons have dual functions so you have to push a "shift" button first to access the second function. They also located the on/off switch on the back of the unit. Overall, for under a $100 it will meet my needs, I don't work in a lab or calibrate instruments but as an engineer it does a lot for the money.

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  • By Spacefish

    January 5, 2018

    Wörtlich der beste Kauf, den ich auf tomtop gemacht habe! Sehr erfreut!!!

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  • By John

    January 29, 2018

    Very useful and intuitive.Still playing with functions.Good packaging, great product.

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  • By d***w

    January 23, 2018

    Excellent! Item received quickly and as stated! Thank you!

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  • By cxd4

    September 19, 2017

    Works great. Connection with probes is weak. Have to jiggle it sometimes to get good connection.

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  • By f***l

    September 13, 2017

    Great product! Thanks!

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  • By C12

    September 12, 2017

    Einfacher Funktionsgenerator, der alles mitbringt was man so braucht... Standard Parameter sind einfach einzustellen. Signaleinstellungen zu speichern und wieder abzurufen ist schon Kür. Einen Frequenz-Sweep so an den Start zu bringen wie man ihn haben will erfordert detektivische Kleinarbeit und ein hin- und herspringen in diversen Menu-Unterpunkten, das geht so gar nicht... Aber, bei dem Preis muss man diese Kröte schlucken...

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  • By Beck

    June 7, 2017

    Excellent and very stable sig gen. Reasonably priced. A must for any workbench. It pairs up well with the Siglent SDS1102x scope.

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  • By t***y

    May 24, 2017

    It does the job I am pleased with its opperaTION

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  • By Bluesman

    May 19, 2017

    Awesome, thank you.

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  • By c***1

    January 14, 2016

    very good aspect,excellent functioning

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  • By m***m

    December 23, 2015

    I just received my item. Thank You

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  • By m***s

    December 22, 2015


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  • By e***c

    December 22, 2015

    all it's ok, A+++++

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