MC3361BP

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

5 of 5

www.unisonic.com.tw

QW-R108-010.D

APPLICATION CIRCUIT

In the above typical application, the audio signal is recovered using a conventional quadrature FM detector. The

absence of an input signal is indicated by the presence of noise above the desired audio frequencies. This “noise

band: is monitored by an active filter and a detector. A squelch trigger circuit indicates the presence of noise (or a

tone) by an output which can be used to control scanning. At the same time, an internal switch is operated which can

be used to mute the audio.

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exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in

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presented in this document does not form part of any quotation or contract, is believed to be accurate

and reliable and may be changed without notice.