Three Waveforms Signal Generator Circuit

Published:2011/7/22 6:23:00 Author:Sue | Keyword: Three Waveforms, Signal Generator | From:SeekIC

TCL8038 is a kind of special function generation circuit and it has various waveform output function(square wave, triangle wave, sine wave). Its working current is about 10mA with positive and negative power supply. In the figure, C5-C8 use capacitor with small temperature coefficient and small error. When S1 is in C8 block, it can output pulse waveform which is lower than 1Hz. RP2 uses 51-100kΩ double connection linear potentiometer which can facilitate the frequency scale. RP1,RP3 are used to fine-tune the output waveform which can make its up side and down side very smooth. S1 is frequency coarse-tune block. RP2 is frequency fine-tune potentiometer.



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