DATA BYTE SPECIFICATION

Input Selector

MSB

LSB

FUNCTION

D7

D6

D5

D4

D3

D2

D1

D0

0

0

0

0

1

1

1

1

0

0

1

1

0

0

1

1

0

1

0

1

0

1

0

1

Source Selector

don’t use

Cassette

don’t use

AM

Stereo Decoder

don’t use

Mute

don’t use

X

Don’t Care

1

0

0

1

0

0

1

1

1

1

0

0

1

1

0

0

AM/FM Mode

AM mono

AM stereo

AM through Stereo/Decoder

FM- Stereo/Decoder

0

0

:

1

1

0

0

:

1

1

0

1

:

0

1

In-Gain

14dB

12dB

:

2 dB

0 dB

For example to select the CD input in quasi-differential mode with gain of 8dB the Data Byte is: 0/01111000

Autozero

MSB

LSB

LOUDNESS

D7

D6

D5

D4

D3

D2

D1

D0

1

1110000

setting fix

TDA7403

18/25