dc_SWITCHED_CRYSTAL_OSCILLATOR

Published:2009/6/23 1:53:00 Author:May | From:SeekIC

This circuit is useful where several different crystal frequencies must be switched using a dc source. The values shown are typical for 40- to 60-MHz third-overtone crystals. Limitation on number of crystals depends on PIN diode capacitance and layout factors, but up to 5 or 10 crystals is possible.



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