TDA7342_06 Datasheet, PDF (5/20 Pages) STMicroelectronics – Digitally controlled audio processor

TDA7342
Block diagram and pin descriptions
1
Block diagram and pin descriptions
1.1
Block diagram
Figure 1. Block diagram
LEFT
INPUTS
C1
L1 13
L2 12
C2
C6 _{L3 11}
CD
CD GND ₁₀
C3
C7
R3 5
C8
MONO INPUT
M8
R2 6
RIGHT
C4
INPUTS
R1 7
C5
SUPPLY
30 31
V_S
29
CREF
L1
L2
M
L3
R3
M
R2
R1
10μF C9
C11
OUT(L)
16
IN(L)
15
C13 47nF
LOUD(L)
9
C17 100nF R2
4.7K
SM
21 18
BIN(L)
17
C18
100nF
32
C19 2.7nF
TREBLE(L)
ZERO
CROSS +
MUTE
LOUD+
VOL
BASS
TREBLE
SPKR
ATT
MUTE
25
OUT
LEFT FRONT
SPKR
ATT
MUTE
23
OUT
LEFT REAR
INPUT
SELECTOR
+ GAIN
3
OUT(R)
SOFT
MUTE
SERIAL BUS DECODER + LATCHES
SPKR
ATT
28
SCL
27
SDA
26
DIGGND
BUS
ZERO
CROSS +
MUTE
LOUD+
VOL
BASS
TREBLE
MUTE
24
OUT
RIGHT FRONT
SPKR
ATT
2
IN(R)
C10
4
LOUD(R)
C12
47nF
14 20
19
1
CSM
CSM
47nF
BOUT(R)
C14
100nF
BIN(R)
C15
100nF
TREBLE(R)
C16
2.7nF
R1 4.7K
MUTE
22
OUT
RIGHT REAR
D94AU104B
1.2
Pin description
Figure 2. Pin connections (Top view)
TR R
IN R
OUT R
LOUD R
IN R3
IN R2
IN R1
MONO
32 31 30 29 28 27 26 25
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9 10 11 12 13 14 15 16
OUT RF
OUT LR
OUT RR
SM
BOUT R
BIN R
BOUT L
BIN L
D94AU105A
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