TDA7344 datasheet(1/20 Pages) STMICROELECTRONICS

部件名	TDA7344

功能描述	DIGITAL CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX

PDF	20 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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TDA7344

DIGITAL CONTROLLED AUDIO PROCESSOR

WITH SURROUND SOUND MATRIX

1 STEREO INPUT

VOLUME CONTROL IN 1.25dB STEP

TREBLE AND BASS CONTROL

THREE SURROUND MODES ARE AVAIL-

ABLE:

– MOVIE, MUSIC AND SIMULATED

FOUR SPEAKER ATTENUATORS:

– 4 INDEPENDENT SPEAKERS CONTROL

IN 1.25dB STEPS FOR BALANCE FACILITY

– INDEPENDENT MUTE FUNCTION

ALL FUNCTIONS PROGRAMMABLE VIA SE-

RIAL BUS

DESCRIPTION

The TDA7344 is a volume tone (bass and treble)

balance (Left/Right) processor for quality audio

applications in car radio and Hi-Fi systems.

It reproduces surround sound by using phase

shifters and a signal matrix. Control of all the

functions is accomplished by serial bus.

The AC signal setting is obtained by resistor net-

works and switches combined with operational

amplifiers.

Thanks to the used BIPOLAR/CMOS Technology,

Low Distortion, Low Noise and DC stepping are

obtained.

February 1997

PIN CONNECTIONS

ORDERING NUMBERS: TDA7344P (PQFP44)

TDA7344S (SDIP42)

PQFP44

(10 X 10)

SDIP42

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