— Vartech® Function Generators
SGDA-80M 80 MHz Programmable Dual Channel DDS Function / Arbitrary Waveform Generator
Dual-channel 80 MHz DDS with 300 MSa/s, 3.5-inch TFT, arbitrary waveforms, full modulation suite and USB — fully programmable for automated test.
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About This Instrument
The Vartech SGDA-80M is an 80 MHz dual-channel programmable DDS function and arbitrary waveform generator with 300 MSa/s sampling rate, 14-bit vertical resolution and a 3.5-inch 320×480 TFT colour LCD display. Sine output covers 1 nHz to 80 MHz; square to 30 MHz; triangle to 50 MHz; pulse and arbitrary to 30–50 MHz. Built-in waveforms include sine, square, pulse, ramp, CMOS, DC, partial sine, half/full wave, step waves, noise, exponential, logarithmic, multi-tone and Lorenz. Modulation modes cover AM, FM, PM, ASK, FSK, PSK, PWM and BURST. A USB interface enables PC programming.
Key Features
- 80 MHz sine, 30 MHz square/pulse, 50 MHz triangle — dual independent channels
- 300 MSa/s sampling rate, 14-bit vertical resolution, 8K waveform points/channel
- 3.5-inch TFT colour LCD (320×480, 64K colours) — full parameter display
- Full modulation suite — AM, FM, PM, ASK, FSK, PSK, PWM, BURST
- Frequency/amplitude/duty sweep — linear and logarithmic modes
- Built-in frequency counter: 1 Hz ~ 100 MHz
- USB interface for PC programming; 99 arbitrary waveform storage locations
- Frequency accuracy ±5 ppm (0–50 °C); frequency stability ±3 ppm/year
Technical Specifications
| Channels | 2 (Dual Channel) |
| Sine Wave Frequency Range | 1 nHz ~ 80 MHz |
| Square Wave Frequency Range | 1 nHz ~ 30 MHz |
| Triangle Wave Frequency Range | 1 nHz ~ 50 MHz |
| Pulse Wave Frequency Range | 1 nHz ~ 30 MHz |
| Arbitrary Wave Frequency Range | 1 nHz ~ 50 MHz |
| Sampling Rate | 300 MSa/s |
| Vertical Resolution | 14 bits; 8192 points/channel |
| Frequency Resolution | 1 nHz |
| Frequency Accuracy | ±5 ppm (0 ~ 50 °C); Stability ±3 ppm/year |
| Amplitude — Sine (≤1 MHz) | 2 mVpp ~ 25 Vpp |
| Amplitude — Sine (1 ~ 11 MHz) | 2 mVpp ~ 10 Vpp |
| Amplitude — Sine (11 ~ 60 MHz) | 2 mVpp ~ 5 Vpp |
| Amplitude — Sine (60 ~ 80 MHz) | 2 mVpp ~ 3.6 Vpp |
| DC Offset Range | −9.99 V ~ +15.00 V; Resolution: 0.01 V |
| Modulation | AM, FM, PM, ASK, FSK, PSK, PWM, BURST |
| Sweep | Frequency, Amplitude, Duty (Linear / Logarithmic; Increment / Decrement / Round trip); Sweep time: 0.01 S ~ 640 S |
| Frequency Counter | 1 Hz ~ 100 MHz; input amplitude 2 Vpp ~ 20 Vpp |
| Output Impedance | 50 Ω (typical); short-circuit protection |
| Display | 3.5" TFT colour LCD, 320×480, 64K colours |
| Interface | USB (serial); TTL extension port |
| Storage | 100 groups (waveform & setup); 99 arbitrary waveform storage locations |
| Power Supply | AC 85 ~ 264 V, 47 ~ 63 Hz; Power consumption <30 W |
| Dimensions & Weight | 219 × 103 × 240 mm | 2.5 Kg |
Specifications sourced from the official Vartech product catalogue. Download above for the full datasheet.
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