TDA7465 데이터 시트보기 (PDF) - STMicroelectronics

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TDA7465

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER

STMicroelectronics 

TDA7465

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 RECOUT L & R SELECTION

MSB

D7

D6

D5

D4

D3

D2

1

1

0

0

1

0

1

1

1

0

1

1

1

1

0

0

1

0

1

1

1

0

1

1

1

1

0

1

1

1

LSB

D1

D0

1

0

1

1

1

1

1

1

1

1

1

1

1

1

VOICE CANCELLER

OFF

ON

REC OUT ”L”

VAR 1 (3BAND)

VAR 2 (SURR)

VAR 3 (REAR)

FIX

REC OUT ”R”

VAR 1(3BAND)

VAR 2 (SURR)

VAR 3 (REAR)

FIX

MIX SWITCH

MIX PIN ACTIVE

NO MIX PIN

14/20

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