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FN561

Intersil
Part Number FN561
Manufacturer Intersil
Description OBSOLETE PRODUCT NO RECOMMENDED REPLACEMENT
Published May 29, 2005
Detailed Description ® UCT NT PROD E T E CEME L OBSO DED REPLA MEN E CO M Data Sheet October 2002 NO R CA3089 FN0561.4 FM IF System Descri...
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FN561
FN561

Overview
® UCT NT PROD E T E CEME L OBSO DED REPLA MEN E CO M Data Sheet October 2002 NO R CA3089 FN0561.
4 FM IF System Description Intersil CA3089 is a monolithic integrated circuit that provides all the functions of a comprehensive FM-IF system.
The block diagram shows the CA3089 features, which include a three-stage FM-IF amplifier/limiter configuration with level detectors for each stage, a doubly-balanced quadrature FM detector and an audio amplifier that features the optional use of a muting (squelch) circuit.
The advanced circuit design of the IF system includes desirable deluxe features such as delayed AGC for the RF tuner, and AFC drive circuit, and an output signal to drive a tuning mete...


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