THREE_STAGE_VARIABLE_FREQUENCY_CRYSTAL_OSCILLATOR

Published:2009/7/19 23:03:00 Author:Jessie | From:SeekIC

Provides loop transmission of 1, under maximum frequency pulloff of 5 cps from 9.1-kc crystal frequency, and has net phase shift around loop of 360°with crystal in circuit. Third stage provides extra circuit gain needed for larger power output or larger frequency deviations off resonance. Transformer provides phase reversal and reflects desired a-c load, to limit output swing of transistor.-G. A. Gedney and G. M. Davidson, Crystal Oscillator has Variable Frequency, Electronics, 31:7, p 118-119.



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