The LC ICL8038 module is designed for common frequency ranges. It is adjustable from 5 gears and generates low-distortion triangular waves, square and sine waves from 10Hz to 450KHz. Sine wave can be used for test signals, drive signals, carrier frequency signals, etc; square wave can be used for switching signals, trigger signals, etc; triangular wave is mainly used for scanning signals.<br> Working voltage: 12V ~ 15V<br> Output: Triangular wave, Square wave and sine wave.<br> Frequency range: 10HZ ~ 450kHz<br> Low distortion sine wave: 1%<br> Duty cycle range: 2% to 98%<br> Low temperature drift: 50ppm / °<br> Triangular wave output linearity: 0.1%<br> Working temperature: 0 ~ 70 ℃<br> Board size: 54.5 x 37.8mm<br> Functions:<br> VCC,GND: working voltage<br> AC: with DC bias output<br> G: ground<br> DC: pure signal output<br> R11: Frequency adjustment<br> R12: Square wave duty cycle adjustment<br> R13: Sine wave linear adjustment<br> R14: Amplitude adjustment<br> R15: Square wave linear adjustment<br> Jumper P2: select different waveforms(triangular, square or sine waves)<br> Jumper P3: select different frequency ranges<br> 10Hz-450Hz<br> 90Hz-1.5KHz<br> 940Hz-15KHz<br> 6KHz-120KHz<br> 20KHz-450KHz<br> (Slight differences in parts will not affect use)<br> Color: As Shown<br> Material: ABS<br> Package Contents:<br> 1 * ICL8038 Signal Generator Module<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.