Datasheet > 7431

7431

更新时间： 2024-01-15 05:45:22

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
21页	170K
描述
DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX AND VOICE CANCELLER

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中文翻译

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数据手册

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7431 数据手册

TDA7430

TDA7431

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH

SURROUND SOUND MATRIX AND VOICE CANCELLER

1 STEREO (4 STEREO) INPUT + 1 MIXER IN-

PUT

INPUT ATTENUATION CONTROL IN 0.5dB

STEP

VOICE CANCELLER IS AVAILABLE

TREBLE MIDDLE AND BASS CONTROL

THREE SURROUND MODES ARE AVAIL-

ABLE:

SDIP42

TQFP44

- MUSIC: 4 SELECTABLE RESPONSES

- MOVIE AND SIMULATED:

256 SELECTABLE RESPONSES

2 SPEAKER AND 2 RECORD ATTENU-

ATORS:

ORDERING NUMBERS: TDA7430 (TQFP44)

TDA7431 (SDIP42)

- 2 INDEPENDENT SPEAKERS AND 2

INDEPENDENT RECORD CONTROL

IN 1dB STEP FOR BALANCE FACILITY

- AVAILABILITYOF LOUDSPEAKER

EQUALIZATIONFIXED BY EXTERNAL

COMPONENTS

- INDEPENDENT MUTE FUNCTION

ALL FUNCTIONS PROGRAMMABLE VIA SE-

RIAL BUS

voice canceller for quality audio applications in

car radio and Hi-Fi systems.

They reproduce surround sound by using pro-

grammable phase shifters and a signal matrix.

Control of all the functions is accomplished by se-

rial bus.

The AC signal setting is obtained by resistor net-

works and switches combined with operational

amplifiers.

Thanks to the used BIPOLAR/CMOSTechnology,

Low Distortion, Low Noise and DC stepping are

obtained.

DESCRIPTION

The TDA7430/7431are volume tone (bass middle

and treble) balance (Left/Right) processors with

PIN CONNECTIONS

PS4

PS3

V_S

CREF

PS2

NBRO

NBRIN

LPVC

44 43 42 41 40 39 38 37 36 35 34

PS1

LP1

HP1

R_IN1

LP1

R_IN

MIX

HP1

MIX

HP2.

L_IN1

HP2

L_IN

REAROUT

REARIN

VAR_L

L_IN2

VOUTREF

VAR_L

NBLIN

NBLO

L_IN3

L_IN4

BASSO_L

VAR_R

RECOUT_L

RECOUT_R

L_OUT

R_OUT

DIG_GND

SCL

BASSO_L

VAR_R

RECOUT_L

RECOUT_R

L_OUT

R_OUT

DIG_GND

BASSO_R

BASS_LO

BASS_LI

BASS_RO

BASS_RI

MIDDLE_LO

MIDDLE_LI

MIDDLE_RO

MIDDLE_RI

BASSO_R

BASS_LO

BASS_LI

SDA

12 13 14 15 16 17 18 19 20 21 22

ADDR

AGND

TREBLE_L

TREBLE_R

D95AU220B

D95AU219B

1/21

September 1999

12 3 4 5 6 7...21

中文翻译

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