High Precision Digital Dual Channel DDS Function Signal Generator ( Item#: E0820-6 )

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. 

Features:
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.

Specifications:

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	1°
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