TDA7346D datasheet(7/14 Pages) STMICROELECTRONICS

7 / 14 page

CHIP ADDRESS

DC (HEX)

DE (HEX)

SOFTWARE SPECIFICATION

Interface Protocol

The interface protocol comprises:

A start condition (s)

A chip address byte, containing the TDA7346

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

TDA7346 must always acknowledge at the end

of each transmitted byte.

A sequence of data (N bytes + achnowledge).

A stop condition (P)

TDA7346 ADDRESS

MSB

first byte

LSB

MSB

LSB

MSB

LSB

ACK

DATA

ACK

DATA

ACK P

Data Transferred (N-bytes + Acknowledge)

ACK = Acknowledge

S = Start

P = Stop

MAX CLOCK SPEED 100kbits/s

SOFTWARE SPECIFICATION

Chip address

MSB

1011

LSB

A = Logic level on pin ADDR

A = 1 if ADDR pin = open

A = 0 if ADDR pin = connected to ground

MSB

LSB

SUBADDRESS

INPUT ATTENUATION R

INPUT ATTENUATION L

SURROUND MODES

SIMULATED MODE

MUSIC MODE

MOVIE MODE

11111

111

OFF MODE

EFFECT CONTROL

PHASE SHIFTER 4 CONTROL

PHASE SHIFTER 3 CONTROL

PHASE SHIFTER 2 CONTROL

PHASE SHIFTER 1 CONTROL

Software Specification

TDA7346

7/14

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