SIMPLE_FREQUENCY_SYNTHESIZER

Published:2009/7/14 3:11:00 Author:May | From:SeekIC

The 555 timer circuit is configured as a 10-kHz astable multivibrator that feeds this signal to the 4046 phase-locked-loop IC. The signal that is fed from this chip is then coupled to a divide-by-N counter. This counter will take the 10-kHz signal locked on by the 4046 and will produce multiples of the fundamental frequency(10 kHz). Therefore, it is possible to generate frequencies as high as 100 kHz with this circuit. When building this circuit, remember to use safety precautions when handling CMOS chips.



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