The function generator ICL8038 of the ASIC chip with excellent performance, adding a small amount of resistance-capacitance components, can generate sine waves, triangle waves and square waves, and signal frequency, duty cycle, and sine waves with adjustable distortion.
Need a certain DIY ability, you need to solder the package yourself:ICL8038 pin function:1 foot, 12 feet: sine waveform adjustment terminal;2 feet: sine wave output;3 feet: triangle wave output;4 feet, 5 feet: frequency and duty cycle (or waveform asymmetry) adjustment;6 feet: V +, positive power supply;7 feet: offset; 8 feet: frequency adjustment input;9 feet: square wave output.This is an open-collector output terminal. When working, the load resistance should be connected from the positive power supply terminal corresponding to the pin to obtain a TTL compatible square wave output. The load resistance must be connected to a +5 V power supply;10 feet: timing capacitor terminal;11 feet: V, negative power terminal or ground. Use positive and negative power supply, 11-pin negative power supply, the output waveform is symmetrical with respect to 0V; use a single positive power supply, 11-pin ground, the output waveform is unipolar, and the uniform voltage is VCC/2;13 feet, 14 feet: empty feet.The tool is designed as a frequency range of 50-5khz, two switches with switches, RP1 is the frequency adjustment, RP2 is the duty cycle adjustment, and RP3 is the sine wave distortion correction. The circuit uses a 12V single power supply, with inputs from X1, X2 and X3; on the side of the output waveform, you can use an oscilloscope to observe the output waveform, three.Model: ICL8038Input DC 12VFrequency range 50-5khz,Size: 6cm×4.5cm×0.2cm