MSB

LSB

INPUT ATTENUATION

D7

D6

D5

D4

D3

D2

D1

D0

0.5 dB STEPS

000

0

0

0

1

-0.5

010

-1

0

1

1

-1.5

100

-2

1

0

1

-2.5

110

-3

1

1

1

-3.5

4 dB STEPS

000

0

001

-4

010

-8

011

-12

100

-16

101

-20

110

-24

111

-28

INPUT ATTENUATION = 0

∼ -31.5dB

D7

D6

D5

D4

D3

D2

D1

D0

REAR SWITCH

0

REARIN, REAROUT PIN

ACTIVE

1

NO REARIN, REAROUT PIN

INPUT ATTENUATION SELECTION

MSB

LSB

SUBADDRESS

D7

D6

D5

D4

D3

D2

D1

D0

B

X

X

X

0

0

0

0

INPUT ATTENUATION

B

X

X

X

0

0

0

1

SURROUND & OUT & EFFECT

CONTROL

B

X

X

X

0

0

1

0

PHASE RESISTOR

B

X

X

X

0

0

1

1

BASS & NATURAL BASE

B

X

X

X

0

1

0

0

MIDDLE & TREBLE

B

X

X

X

0

1

0

1

SPEAKER ATTENUATION ”L”

B

X

X

X

0

1

1

0

SPEAKER ATTENUATION ”R”

B

X

X

X

0

1

1

1

RECORD ATTENUATION ”L”

B

X

X

X

1

0

0

0

RECORD ATTENUATION”R”

B

X

X

X

1

0

0

1

INPUT MULTIPLEXER, VOICE

CANCELLER & REC OUT

B = 1 incremental bus; active

B = 0 no incremental bus;

X = indifferent 0,1

The first byte (subaddress)

DATA BYTES

Address = 80(HEX): ADDR open; 82 (HEX): need to connect supply

FUNCTION SELECTION:

TDA7430 - TDA7431

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