TDA7440

更新时间： 2024-11-15 22:53:11

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
17页	217K
描述
TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR

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中文翻译

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数据手册

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TDA7440 数据手册

TDA7440D

TONE CONTROL

DIGITALLY CONTROLLED AUDIO PROCESSOR

1 FEATURES

Figure 1. Package

■ INPUT MULTIPLEXER

– 4 STEREO INPUTS

– SELECTABLE INPUT GAIN FOR OPTIMAL

ADAPTATION TO DIFFERENT SOURCES

■ ONE STEREO OUTPUT

SO-28

■ TREBLE AND BASS CONTROL IN 2.0dB

STEPS

Table 1. Order Codes

Part Number

TDA7440D

Package

SO-28

■ VOLUME CONTROL IN 1.0dB STEPS

■ TWO SPEAKER ATTENUATORS:

– TWO INDEPENDENT SPEAKER CONTROL

IN 1.0dB STEPS FOR BALANCE FACILITY

– INDEPENDENT MUTE FUNCTION

■ ALL FUNCTION ARE PROGRAMMABLE VIA

SERIAL BUS

TDA7440D013TR

Tape & Reel

Selectable input gain is provided. 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.

2 DESCRIPTION

The TDA7440D is a volume tone (bass and treble)

balance (Left/Right) processor for quality audio

applications in Hi-Fi systems.

Thanks to the used BIPOLAR/CMOS Technology,

Low Distortion, Low Noise and DC stepping are

obtained

Figure 2. Block Diagram

MUXOUTL INL

TREBLE(L) BIN(L)

BOUT(L)

L-IN1

L-IN2

L-IN3

L-IN4

100K

R_B

SPKR ATT

LEFT

VOLUME

TREBLE

BASS

LOUT

0/30dB

2dB STEP

SCL

I²CBUS DECODER + LATCHES

SDA

R-IN1

R-IN2

R-IN3

R-IN4

DIG_GND

100K

SPKR ATT

RIGHT

VOLUME

TREBLE

BASS

ROUT

V_REF

V_S

SUPPLY

INPUT MULTIPLEXER

+ GAIN

AGND

R_B

CREF

D98AU883

MUXOUTR INR

TREBLE(R) BIN(R)

BOUT(R)

REV. 3

1/17

April 1999

12 3 4 5 6 7...17

中文翻译

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