IC Synchronous Detection Circuit of 2MHZ Input Signal Srequency

Published:2011/6/14 13:06:00 Author:Michel | Keyword: 2MHZ, Input Signal Srequency, IC, Synchronous Detection Circuit | From:SeekIC

Circuit's Functions MC1496 is widely used as IC balance modulation circuit, the basic circuit connection are the same with modulation circuit.But it's output circuit adds level shifting circuit so it can be used in synchronous detection and gets EO =E.COSθ output. Without switch circuit, according to the the element parametersof the circuit , the signal frequency reaches 2 MHZ.Circuit's Work PrincipleMC1496 is composed of double transistor differential circuit and its output is open-collector type, and it needs connect outside load resistor.In order to perform the dc coupling and the differential amplifiers receiving A1 output end signal,OP amplifier A2 forms a 3 times constitutes level shifting circuit.



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