HIGH_LINEARIT_PHASE_DEMODULATOR

Published:2009/7/15 3:59:00 Author:Jessie | From:SeekIC

I-f signal is amplified by Q1, clipped by Q2-Q3,and resulting square wave phase-demodulated in coincidence Circuit,Q4-Q5 which also receives similarly clipped 455-kc reference signal. Demodulated output of Q6 is reshaped by clipper Q7-Q8, to give symmetrical output with linearity for deviations up to 85 deg.-W. H. Casson and C. C. Hall, New Phase-Tracking Demodulator Will Not lock on Sidebands, Electronics, 36:6, p 52-55.



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