TDA7466 datasheet(1/21 Pages) STMICROELECTRONICS

Numer części	TDA7466

Szczegółowy opis	DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER

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TDA7466

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH

SRS SURROUND SOUND AND VOICE CANCELLER

1 STEREO INPUT

INPUT ATTENUATION CONTROL IN 0.5dB

STEP

TREBLE MIDDLE AND BASS CONTROL

VOICE CANCELLER IS AVAILABLE

STEREO SRS SURROUND SOUND WITH

CENTER & SPACE CONTROL IS AVAILABLE

THREE STANDARD SURROUND MODES

ARE AVAILABLE:

- MUSIC IN 4 DIFFERENT SELECTABLE

RESPONSES

- MOVIE AND SIMULATED IN 256

DIFFERENT SELECTABLE RESPONSES

2 SPEAKERS OUTPUTS

- INDEPENDENT ATTENUATORS IN 1dB

STEP FOR BALANCE FACILITY

- ZERO CROSSING ATTENUATION AVAILABLE

- AVAILABILITY OF LOUDSPEAKERS

EQUALIZATION FIXED BY EXTERNAL

COMPONENTS

- INDEPENDENT MUTE FUNCTION

2 RECORD OUTPUTS

- INDEPENDENT ATTENUATORS IN 1dB

STEP FOR BALANCE FACILITY

- MUX AVAILABLE FOR PROCESSES SIGNAL

SELECTION

- INDEPENDENT MUTE FUNCTION

ALL FUNCTIONS PROGRAMMABLE VIA SE-

RIAL BUS

DESCRIPTION

The TDA7466 is a volume tone (bass middle and

treble) balance (Left/Right) processors with stereo

SRS and voice canceller for quality audio applica-

tions in car radio, Hi-Fi, TV systems.

It reproduces SRS (Sound Retrieval System)

sound by external components and surround

sound by using phase shifters and a signal ma-

trix. The AC signal setting is obtained by resistor

networks and switches combined with operational

amplifiers according to the SRS laboratories

specification.

Control of all the functions is ac-

complished by serial bus.

Thanks to the used BIPOLAR/CMOS Technology,

Low Distortion, Low Noise and DC stepping are

obtained.

September 2003

®

ORDERING NUMBER: TDA7466

SDIP42

LP

LP1

HP1

HP2

VAR_L

VAR_R

BASSO_L

BASSO_R

BASS_LO

1

3

2

4

5

6

7

8

9

L_OUT

RECOUT_R

RECOUT_L

NETW2

NETW1

VREFOUT

NBLO

NBLIN

L_IN

37

36

35

34

33

31

32

30

29

D96AU445A

10

11

12

13

14

42

41

40

39

38

VS

PS4

PS3

PS2

PS1

R_IN

LPVC

NBRIN

NBRO

CREF

BASS_LI

BASS_RO

BASS_RI

MIDDLE_LI

MIDDLE_LO

MIDDLE_RO

MIDDLE_RI

15

16

TREBLE_R

TREBLE_L

AGND

SCL

SDA

DIG_GND

R_OUT

28

27

26

24

25

23

22

17

18

19

20

21

PIN CONNECTION

The Device incorporates the SRS

WOW

®

Technology

under

li-

cence from SRS Labs, Inc.

1/21

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