20MHz Dual Channel DDS Signal Generator
- 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
| Model | LWG-3020 |
Channel A |
|
| 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% |
| Frequency Characteristics | |
| Frequency range | Sine: 40mHz~20MHz Other waveforms: 40mHz~1MHz |
| Frequency resolution | 40mHz |
| Frequency accuracy | ±(5×10-5+40mHz) |
| Frequency stability | ±5×10-6/3 hours |
| 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 |
| DC Offset Characteristics | |
| Offset range | ±10V (high impedance, attenuation 0dB) Resolution: 20mVdc |
| Offset accuracy | ±(1%+20mVdc) |
| Sweep Characteristics | |
| Linear sweep on frequency or amplitude. | |
| Sweep range | free to set the 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 |
| Frequency Modulation Characteristics | |
| Carrier signal | channel A signal |
| Modulation signal | internal signal of channel B or external signal |
| FM deviation | 0%~20% |
| 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~60s |
| Burst Characteristics | |
| Carrier signal | channel A signal |
| Trigger signal | TTL_A signal |
| Burst count | 1~65000 cycles |
| Burst mode | Internal TTL, External, Single |
Channel B |
|
| 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) |
| Amplitude Characteristics | |
| Amplitude range | 50mVpp~20Vpp (high impedance) |
| Resolution | 20mVpp |
| Output impedance | 50Ω |
| Burst Characteristics | |
| Carrier single | channel B signal |
| Trigger signal | TTL_B signal |
| Burst count | 1~65000 cycles |
| Burst mode | Internal TTL, External, Single |
TTL Output Characteristics |
|
| Waveform Characteristics | Square, rise/fall time ≤ 20ns |
| Frequency Characteristics | 40mHz~1MHz |
| Amplitude Characteristics | TTL, CMOS compatible, low < 0.3V, high > 4V |
Common Characteristics |
|
| Power Source | |
| Voltage | AC220V (1±10%) |
| AC110V (1±10%) (Pay attention to the voltage selection on rear panel) | |
| Frequency | 50Hz (1±5%) |
| Power | < 45VA |
| Environment | |
| Temperature | 0~40℃ Humidity: <80% |
| Operation Characteristics | |
| Keypad operation and rotary knob operation | |
| Display | 3.5-inch TFT display |
| English, Chinese (Simplified), Chinese (Traditional) | |
| Dimension | 415×295×195 mm |
| Weight | 3.5 kg |
| 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 |
| Title | Rating | Price |
|---|---|---|
80MHz Dual Channel DDS Signal GeneratorLWG-3080 |
$439.90 |
|
60MHz Dual Channel DDS Signal GeneratorLWG-3060 |
$391.90 |
|
40MHz Dual Channel DDS Signal GeneratorLWG-3040 |
$268.90 |
|
20MHz Dual Channel DDS Signal GeneratorLWG-3020 |
$207.80 |
|
10MHz Dual Channel DDS Signal GeneratorLWG-3010 |
$183.50 |
| Title | Description | Size | Date added | Download |
|---|---|---|---|---|
| Longwei DDS Signal Generaotr User Manual EN Version | 510.91 KB | 25-07-2023 | Download |
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