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TDA7463AD

June 2004

1FEATURES

■

2 STEREO INPUT

■

1 STEREO OUTPUT

■

TREBLE BOOST

■

BASS CONTROL

■

BASS AUTOMATIC LEVEL CONTROL

■

VOLUME CONTROL IN 1dB STEPS

■

MUTE

■

STAND-BY FUNCTION SOFTWARE

CONTROLLED

■

ALL FUNCTION ARE PROGRAMMABLE VIA

SERIAL BUS

2DESCRIPTION

The TDA7463AD is a volume tone (bass and tre-

ble) processor for quality audio applications in Low

voltage supply portable systems.

Bass ALC (Automatic Level Control) function can

be adjusted by a dedicated pin.

The 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.

LOW VOLTAGE TONE CONTROL

DIGITALLY CONTROLLED AUDIO PROCESSOR

Figure 2. Block Diagram

IN1-R

ALC

IN1-L

C2 0.47

µF

C3 0.47

µF

C6

3.3nF

C7

100nF

C8

100nF

R2

5.6K

SUPPLY

VS

GND

CREF

TREBLE-L

D99AU1049

I2C BUS DECODER + LATCHES

SCL

SDA

OUT-L

OUT-R

C9

22

µF

+

TREBLE-R

RB

RB

BASSI-R

BASSO-R

x1

x5

x1

x5

C4 0.47

µF

C5 0.47

µF

50K

R1

1M

TREBLE

-63dB

CONTROL

-63dB

CONTROL

INPUT

SELECT

TREBLE

BASS

BASS

BASS_ALC

CONTROL

HALF_WAVE

RECTIFIER

50K

50K

IN2-R

18

17

15

16

19

20

2

3

4

5

6

11

12

1

7

9

10

14

C1 0.47

µF

IN2-L

50K

0/-10dB

0/-10dB

BASSO-L

BASSI-L

C10

100nF

C11

100

µF

R3

1K

Ω

R4

1K

Ω

DGND

C14 3.3nF

R5

5.6K

100nF

100nF

C13

C12

1

2

3

4

VS

VS

I2C

SCL

SDA

Figure 1. Package

Table 1. Order Codes

Part Number

Package

TDA7463AD

SSO20P

SSO20P

REV. 3