HoT SaLe! 

Name:DDS FunTion GeneraTor

Model:LWG3020

Ø Main Features:

Direct Digital Synthesis(DDS) technology,2 independent output channels 3.5-inch TFT display;

32 kinds of standard or built-in fixed waveforms ;

Minimum stable output waveform: 1mV(50Ω) ;

Multiple modulation functions: FM,FSK,ASK,PSK;

Frequency sweep,amplitude sweep and burst functions ;

Overvoltage, overcurrent,output short-circuit and reverse voltage protections;

Optional parts:RS232 interface,frequency counter,power amplifier ;

Ø Technical Specifications 

Output Characteristics of Channel A

Ø Waveform Characteristics

Waveform type: 32 waveforms including: Sine, Square, Triangle, Ramp, Pulse etc. ;

Waveform length: 1024 points ; Sample rate: 100MSa/s;

Waveform amplitude resolution: 8bits;

Sinusoidal harmonic rejection: ≥40dBc (<1MHz), ≥35dBc (1MHz~20MHz);

Sine wave total distortion: ≤1% (20Hz~200kHz);

Square rise/fall edge time: ≤35ns;Overshoot: ≤10%;

Square wave duty cycle: 1%~99%;

Ø Frequency Characteristics

Frequency range: Sine: 40mHz~Max. frequency (MHz);Other waveforms: 40mHz~1MHz;

Frequency resolution: 40mHz;

Frequency accuracy: ±(5×10-5+40mHz);

Frequency stability: ±5×10-6/3 hours;

Ø Amplitude Characteristics

Amplitude range: 2mVpp~20Vpp   40mHz~10MHz (high impedance)

                         2mVpp~15Vpp 10MHz~15MHz (high impedance)

                         2mVpp~8Vpp 15MHz~20MHz (high impedance)

Resolution: 20mVpp (amplitude>2Vpp), 2mVpp (amplitude<2Vpp)

Amplitude accuracy: ±(1%+2mVrms) (high impedance, true RMS, frequency at 1kHz)

Amplitude stability: ±0.5%/3 hours

Amplitude flatness: ±5% (frequency<10MHz), ±10% (frequency >10MHz) 

Output impedance: 50Ω

Ø DC Offset Characteristics

Offset range: ±10V (high impedance, attenuation 0dB)     Resolution: 20mVdc

Offset accuracy: ±(1%+20mVdc)

Ø Sweep Characteristics

Linear sweep on frequency or amplitude.;

Sweep range: free to set start point and stop point. ;

Sweep step: higher than any figure of resolution.; 

Sweep rate: 10ms~60s/step;

Sweep mode: UP, DOWN, UP-DOWN;

Manual sweep: step/time;

Ø Frequency Modulation Characteristics

Carrier signal: channel A signal ;

Modulation signal: internal signal of channel B or external signal;

FM deviation: 0%~20%;

Ø Shift Keying Characteristics

FSK: free to set carrier frequency and hop frequency;

ASK: free to set carrier amplitude and hop amplitude 

PSK: hop phase 0~360°,  Max. resolution 1°;

Alternative rate: 10ms~60;

Ø Burst Characteristics

Carrier signal: channel A signal;

Trigger signal: TTL_A signal;

Burst count: 1~65000 cycles;

Burst mode: Internal TTL, External, Single;

Ø Output Characteristics of Channel B

Ø Waveform Characteristics

Waveform type: 32 waveforms including: Sine, Square, Triangle, Ramp, Pulse etc.; 

Waveform length: 1024 points ; Sample rate: 12.5MSa/s;

Waveform amplitude resolution: 8bits

Square duty cycle: 1%~99%;

Frequency Characteristics

Frequency range: Sine: 10mHz~1MHz;Other waveforms: 10mHz~100kHz;

Frequency resolution: 10mHz;

Frequency accuracy: ±(1×10-5+10mHz);

Ø Amplitude Characteristics

Amplitude range: 50mVpp~20Vpp (high impedance) ;   Resolution: 20mVpp;

Output impedance: 50Ω;

Ø Burst Characteristics

Carrier single: channel B signal 

Trigger signal: TTL_B signal 

Burst count: 1~65000 cycles

Burst mode: Internal TTL, External, Single

Ø TTL Output Characteristics

Waveform Characteristics: Square, rise/fall time≤20ns

Frequency Characteristics: 40mHz~1MHz

Amplitude Characteristics: TTL, CMOS compatible, low<0.3V, high>4V

Ø Common Characteristics

Input Voltage: AC220V (1±10%)

AC110V (1±10%) (Pay attention to the voltage selection on rear panel)

Frequency: 50Hz (1±5%)

Power: <45VA

Temperature: 0~40℃ Humidity: <80%

Ø Operation Characteristics

Keypad operation and rotary knob operation

Display

3.5-inch TFT display 

English, Chinese (simplified), Chinese (traditional)

Dimension and Weight

Size:415mmx295mmx195mmWeight: 3.5kg

Manufacturing Technology

Surface Mount Technology, Integrated Circuit. High reliability and stability.

Optional Parts Characteristics

Frequency Counter

Testing frequency range: 1Hz~150MHz

Input signal amplitude: 100mVpp~20Vpp

Power Amplifier

Max.output power: 7W (8Ω), 1W (50Ω)

Max.output voltage: 22Vpp

Frequency bandwidth: 1Hz~200kHz