Datasheet > TDA7469_1

TDA7469_1

更新时间： 2024-11-16 04:28:39

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		放大器功率放大器
页数	文件大小	规格书
13页	715K
描述
LOW VOLTAGE ANALOG AUDIO PROCESSOR WITH HEADPHONE POWER AMPLIFIER

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中文翻译

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数据手册

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TDA7469_1 数据手册

TDA7469

LOW VOLTAGE ANALOG AUDIO PROCESSOR WITH

HEADPHONE POWER AMPLIFIER

1 FEATURES

Figure 1. Package

■ 2 STEREO INPUT

■ 1 STEREO OUTPUT

■ TREBLE BOOST

■ BASS CONTROL

SSOP24

■ BASS AUTOMATIC LEVEL CONTROL

■ VOLUME CONTROL IN 1dB STEPS

■ MUTE

■ STAND-BY FUNCTION SOFTWARE

CONTROLLED

Table 1. Order Codes

Part Number

TDA7469

Package

SSOP24

TDA746913TR

Tape & Reel

■ ALL FUNCTION ARE PROGRAMMABLE VIA

SERIAL BUS

2 DESCRIPTION

The TDA7469 is a volume tone (bass and treble) pro-

cessor for quality audio applications in Low voltage

supply portable systems.

The AC signal setting is obtained by resistor net-

works and switches combined with operational ampli-

fiers.

Thanks to the used BIPOLAR/CMOS Technology,

Low Distortion, Low Noise and DC stepping are ob-

tained.

Bass ALC (Automatic Level Control) function can be

adjusted by a dedicated pin. The control of all the

functions is accomplished by serial bus.

Figure 2. Block Diagram

5.6K

3.3nF

68nF 68nF

MUX_R TREBLE-R

BASSI-R

BASSO-R

0.47µF

IN1-R

IN2-R

25K

+6dB ÷

0dB

16Ω or

32Ω

VOLUME

TREBLE

BASS

OUT-R

25K

220µF

+6dB ÷

-63dB

PGND-R

PVS-R

SUPPLY

BASS_ALC

CONTROL

0.47µF

ALC

SCL

SDA

HALF_WAVE

RECTIFIER

C BUS DECODER + LATCHES

IN1-L

IN2-L

PVS-L

0.47µF

25K

SUPPLY

PGND-L

+6dB ÷

220µF

-63dB

OUT-L

VOLUME

TREBLE

BASS

16Ω or

32Ω

25K

+6dB ÷

0dB

SUPPLY

GND

V_REF

MUX_L

TREBLE-L

BASSI-L

BASSO-L

CREF

D00AU1234

3.3nF

68nF 68nF

5.6K

22µF

REV. 3

1/13

December 2004

12 3 4 5 6 7...13

中文翻译

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