The LC ICL8038 module is designed for common frequency ranges. It features 5 selectable frequency ranges and generates low-distortion triangular, square, and sine waves from 10 Hz to 450 kHz. Sine wave applications include test signals, drive signals, and carrier frequency signals. Square wave applications include switching signals and trigger signals. Triangular wave applications include scanning signals. Operating voltage: 12 V to 15 V Output waveforms: Triangular, square, and sine Frequency range: 10 Hz to 450 kHz Sine wave distortion: ≤1% Duty cycle range: 2% to 98% Temperature drift: 50 ppm/°C Triangular wave linearity: 0.1% Operating temperature: 0 °C to 70 °C Board dimensions: 54.5 mm × 37.8 mm Functions: VCC, GND: Power supply connections AC: Output with DC bias G: Ground DC: Pure AC signal output R11: Frequency adjustment R12: Square wave duty cycle adjustment R13: Sine wave linearity adjustment R14: Amplitude adjustment R15: Square wave linearity adjustment Jumper P2: Select output waveform (triangular, square, or sine) Jumper P3: Select frequency range: - 10 Hz – 450 Hz - 90 Hz – 1.5 kHz - 940 Hz – 15 kHz - 6 kHz – 120 kHz - 20 kHz – 450 kHz Color: As shown Material: ABS Package includes: 1 × ICL8038 Signal Generator Module Note: Color appearance may vary slightly due to lighting and screen settings. Dimensional tolerance: ±1–3 cm.