MSB

LSB

FUNCTION

XX

T

I

0000

Input Selector

0001

Loudness

0010

Volume

0011

Bass, Treble

0100

Speaker Attenuator LF

0101

Speaker Attenuator LR

0110

Speaker Attenuator RF

0111

Speaker Attenuator RR

1000

Mute

1001

Stereodecoder

T = Testmode

I = Autoincrement

X = Not Used

SUBADDRESS (RECEIVE MODE)

TRANSMITTED DATA (SEND MODE)

MSB

LSB

X

X

X

X

ST

SM

ZM

P

P = Pause (low active)

ZM =Zero Crossing Muted (HIGH = active)

SM = Soft mute activated (HIGH = active)

ST = Stereo (HIGH = active)

X = Not used

The transmitted data is automatically updated af-

ter each 9th clock pulse.

Transmission can be repeated without new chi-

paddress.

MSB

LSB

FUNCTION

D7

D6

D5

D4

D3

D2

D1

D0

0

0

0

0

Quasi Diff CD

1

0

0

0

Full Diff CD

0

0

1

Stereo Decoder

0

1

0

Cassette Stereo

1

0

1

1

AM Mono

1

0

0

Telephone Mono

1

1

0

1

Beep Mono

0

0

1

1

AM Stereo

0

1

0

1

Not allowed

1

1

0

Not allowed

1

1

1

Not allowed

0

0

11.25dB gain

0

1

7.5dB Gain

1

0

3.75dB Gain

1

1

0 dB Gain

0

0dB Differential input Gain (CD Input)

1

-6dB Differential input Gain (CD Input)

DATA BYTE SPECIFICATION

X = not relevant; set to ”1”during testing

INPUT SELECTOR

For example to select quasi diff CD input with 0dB diff gain and 7.5dB input gain the Data Byte is:

00001000

TDA7340

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