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TDA7448

June 2004

1

FEATURES

■

6 CHANNEL INPUTS

■

6 CHANNEL OUTPUTS

■

VOLUME ATTENUATION RANGE OF

0 TO -79dB

■

VOLUME CONTROL IN 1.0dB STEPS

■

6 CHANNEL INDEPENDENT CONTROL

■

ALL FUNCTION ARE PROGRAMMABLE VIA

SERIAL BUS

2

DESCRIPTION

The TDA7448 is a 6 channel volume controller for

quality audio applications in Multi-Channels Audio

Systems

Thanks to the used BIPOLAR/CMOS Technology,

Low Distortion, Low Noise and DC stepping are ob-

tained.

6 CHANNEL VOLUME CONTROLLER

Figure 2. Block Diagram

VOLUME

VOLUME

VOLUME

VOLUME

VOLUME

VOLUME

I

2

C BUS

DECODER

SUPPLY

2

IN1

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

SDA

SCL

ADDR

D02AU1396

IN2

IN3

IN4

IN5

IN6

12

9

10

16

5

15

6

14

7

GND

CREF

19

3

18

4

17

11

20

1

50K

50K

50K

50K

50K

50K

Figure 1. Package

Table 1. Order Codes

Part Number

Package

TDA7448

SO-20

TDA744813TR

Tape & Reel

SO-20

REV. 3