PHASE_COMPARATOR

Published:2009/7/6 1:09:00 Author:May | From:SeekIC

Signetic balanced moudulator-demodulator transistor array is connected as phase detector in which output contains term related to cosine of phase angle, Equal-frequency input signals are multiplied together by IC to produce sum and difference frequencies. Difference component becomes DC, while undesired sum component is related to phase angle, with cosine becoming 0 at 90° and having maximum positive or negaitive value at 0° and 80° respectively. Balanced modulator provides excellent conversion linearity along with conversion gain.-“Signetics Analog Date Manual,” Signetics, Sunnyvale, CA, 1977, p, 757-758.



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