TDA7464 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA7464

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER

STMicroelectronics 

TDA7464

RECORD AND RIGHT CHANNEL SPEAKER ATTENUATION SELECTION

MSB

LSB

D7

D6

D5

D4

D3

D2

D1

D0

0

0

0

0

0

1

0

1

0

0

1

1

1

0

0

1

0

1

1

1

0

1

1

1

0

0

0

0

0

0

0

1

0

0

1

0

0

0

1

1

0

1

0

0

0

1

0

1

0

1

1

0

0

1

1

1

1

0

0

0

1

0

0

1

1

0

1

X

1

1

X

X

X = DON’T CARE

SPEAKER/RECORD ATTENUATION = 0dB ∼ -79dB

SPEAKER/RECORD ATT

1 dB STEPS

0

-1

-2

-3

-4

-5

-6

-7

8 dB STEPS

0

-8

-16

-24

-32

-40

-48

-56

-64

-72

MUTE

VOICE CANCELLER/INPUT/RECOUT L & R SELECTION

MSB

LSB

D7

D6

D5

D4

D3

D2

D1

D0

VOICE CANCELLER

1

0

OFF

1

1

ON

INPUT MULTIPLEXER

1

0

0

0

0

IN_2

1

0

1

0

1

IN_3

1

1

0

1

0

IN_4

1

1

1

1

1

IN_1

REC OUT "L"

1

0

0

VAR 1 (3BAND)

1

0

1

VAR 2 (SURR)

1

1

0

VAR 3 (REAR)

1

1

1

FIX

REC OUT "R"

1

0

0

VAR 1(3BAND)

1

0

1

VAR 2 (SURR)

1

1

0

VAR 3 (REAR)

1

1

1

FIX

14/21

Share Link: