TDA4350X Datasheet, PDF (9/32 Pages) Siemens Semiconductor Group – Audioprocessor

TDA 4350X
2.2.3 Control Bytes
a) Switch Control Byte
MSB
ZCM
LSB
IM
Fan
Ph
IN-3
IN-2 IN-CD
X
IN-CD = ‘0’
IN-CD = ‘1’
CD input OFF; power ON
CD input ON
IN-2 = ‘0’
IN-2 = ‘1’
Input 2 OFF; power ON
Input 2 ON
IN-3 = ‘0’
IN-3 = ‘1’
Input 3 OFF; power ON
Input 3 ON
If no input is selected, mute function is active.
If no protection against multiple selection implemented!
Ph = ‘0’
Ph = ‘1’
Bridgepower amplifier operation ON; power ON
Normal operation
Fan = ‘0’
Fan = ‘1’
Normal operation; power ON
Increased Fan out ON
IM = ‘0’
IM = ‘1’
Normal operation; power ON
Immediate mute for all AF outputs
ZCM = ‘0’
ZCM = ‘1’
Normal operation; power ON
Mute after signal zero crossing
IM overwrites ZCM, handware mute overwrites all other mute modes.
b) Input Level Control Byte
MSB
LSB
Min. gain
X
X
X
X
0
0
0
0
Min. gain + 1 X
X
X
X
0
0
0
1 power ON
Max. gain – 1 X
X
X
X
1
0
0
1
Max. gain
X
X
X
X
1
0
1
0
to
Max. gain
X
X
X
X
1
1
1
1
Semiconductor Group
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