TDA3845 - Quasi split-sound circuit and AM demodulator

Product Overview

NXP

Part number	TDA3845
Manufacturer	NXP
File Size	137.13 KB
Description	Quasi split-sound circuit and AM demodulator
Datasheet	TDA3845 Datasheet
Additional preview pages of the TDA3845 datasheet.

The TDA3845 is a quasi split-sound IF circuit which is designed to provide high performance television FM/AM sound.

Power supply from 5 V (200 mW) to 8 V source also an alternative 12 V source (12 V not for TDA3845T).
Gain controlled wideband IF amplifier (AC coupled with three stages).
High precision internal 90° phase shifter for quadrature demodulator.
Amplitude detector for gain control which operates as a peak detector for FM sound and as a mean level detector for AM sound (switchable).
In-phase wideband synchronous demodulator for AM detection TDA3845; TDA3.

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Published: Apr 23, 2005 |