TDA7309D(1997) 查看數據表（PDF） - STMicroelectronics

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TDA7309D
(Rev.:1997)

DIGITAL CONTROLLED STEREO AUDIO PROCESSOR WITH LOUDNESS

STMicroelectronics 

TDA7309

SOFTWARE SPECIFICATION

Interface Protocol

The interface protocol comprises:

A start condition (s)

A chip address byte, containing the TDA7309

address (the 8th bit of the byte must be 0). The

TDA7309 must always acknowledge at the end

of each transmitted byte.

A sequence of data (N-bytes + acknowledge)

A stop condition (P)

TDA7309 ADDRESS

MSB first byte

LSB MSB

S 0 0 1 1 0 0 A 0 ACK

DATA

LSB MSB

ACK

DATA

LSB

ACK P

ACK = Acknowledge

S = Start

P = Stop

MAX CLOCK SPEED 100kbits/s

Data Transferred (N-bytes + Acknowledge)

SOFTWARE SPECIFICATION

Chip address

MSB

LSB

0

0

1

1

0

0

1

0

pin address open

0

0

1

1

0

0

0

0

pin address close to ground

FUNCTION CODES

VOLUM E

MUTE/LOUD

INPUTS

CHANNEL

MSB

F6

F5

F4

F3

F2

F1

LSB

0

X

X

X

X

X

X

X

1

0

0

X

X

X

X

X

1

0

1

X

X

X

X

X

1

1

0

X

X

X

X

X

CHANNEL ABILITATION CODES

MSB

F6

F5

F4

F3

F2

F1

LSB

1

1

0

X

X

X

0

0

X

X

X

0

1

X

X

X

1

0

X

X

X

1

1

FUNCTION

channel

RIGHT

LEFT

BOTH

BOTH

Power on reset condition

11111110

8/12

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