SIMPLE_CMOS_CRYSTAL_OSCILLATOR

Published:2009/7/7 7:10:00 Author:May | From:SeekIC

The circuit is an inverter set up as a linear amplifier. Adding the crystal and capacitors to the feedback path, we tum the amplifier into an oscillator and force it to oscillate at, or least very near, the crystal's resonant frequency. Trimmer capacitor C2 adjusts the actual operating frequency of the circuit. The crystal should be a parallel-resonant type; maximum frequency will depend partly on supply voltage, but it should be possible to go to at least 1 MHz.



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