A
APPD/DATE
CHK/DATE
ISSUED
DESCRIPTION
2
1
3
E
7
5
6
B
8
A
D
C
C
E
D
B
Rev:
Input settings for gain
GAIN 0:GAIN 1
0 V:0 V
0 V :3.3 V
3.3 V:0 V
3.3 V:3.3 V
20 dB
26 dB
30 dB
32 dB
Nominal gain
STBY : MUTE
Mode
Standby
Standby
Mute
Play
0 V:0 V
0 V :3.3 V
3.3 V:0 V
3.3 V:3.3 V
Input settings for standby,mute and play
LC FILTER COMPONENT
LOAD
L901,L902,L903,L904
C903,C923
4 ohm
6 ohm
8 ohm
16 ohm
15 uH
22 uH
33 uH
68 uH
470 nF
220 nF
220 nF
220 nF
CLOSE TO CHIP
MUTE circuit
STAR VG 81/82
2011-12-30
V2.0
1
2
L902
INDUCTOR
IND_CHIP_SMD
1
2
L901
INDUCTOR
IND_CHIP_SMD
1
2
L904
INDUCTOR
IND_CHIP_SMD
1
2
L903
INDUCTOR
IND_CHIP_SMD
TDA7491P
1
SUB_GND
2
OUTPB
3
OUTPB
4
PGNDB
5
PGNDB
6
PVCCB
7
PVCCB
8
OUTNB
9
OUTNB
10
OUTNA
11
OUTNA
12
PVCCA
13
PVCCA
14
PGNDA
15
PGNDA
16
OUTPA
17
OUTPA
18
PGND
19
VDDPW
20
STBY
21
MUTE
22
INPA
23
INNA
24
ROSC
25
SYNCLCK
26
VDDS
27
SGND
28
DIAG
29
SVR
30
GAIN0
31
GAIN1
32
INPB
33
INNB
34
VREF
35
SVCC
36
VSS
37
PGNDA
N901
STA335_5
R903
33K
R901
22
C912
1000pF
C908
0.033u/16v
C913
1u
R904
39K
C914
0.1uF
C915
0.1uF/16V
R905
47K
C916
0.1uF
C917 1u
C918
1u
C919
1u
R906
10K
R907
NC
R908
NC
R909
100
C902 0.033u/16v
C920
1000pF
C9210.1uF/16V
C922
0.1uF/16V
C910
330pF
C923
0.22uF/50V
C905
0.1uF/50V
C909
0.1uF/50V
1
2
3
4
XS901
CON04-2.0
C924
NC/50V
C925
0.1uF/16V
C927
330pF
C903
0.22uF/50V
C906
0.1uF/50V
C907
0.1uF/50V
C928
NC/50V
C929
470u
C911
0.1uF
C930
1u
R952
0.27
R910
22
R902
22
C901
2.2uF
C923A
0.22uF/50V
C903A
0.22uF/50V
C926
470u
R952A
0.27
R928
100K
R929
100K
C946
180PF
C947
180PF
D903
1N4148
R934
10K
B
E
C
V903
BC857
C949
100u
R933
4.7K
B
E
C
V905
BC847
R941
33K
R942
10K
R945
10K
C948
1uF
R932 4.7K
R930
NC
R931
0
R939
4.7K
3.3VSTB
VDDS
N208790356
N208790146
N208790542
N208790157
N208790865
VDDS
PWR_AMP
N208789967
AMP_AUOUTR0
N208790529
N208790159
N208790718
N208790197
N208790220
N208790321
N208790991
AMP_AUOUTL0
N208790653
N208790659
GND
R-
GND
PWR_AMP
12V
MUTE
AMP_AUOUTL0
AMP_AUOUTR0
AMP_AUOUTL0
AMP_AUOUTR0
5VSTB
AMP_MUTE
5V
MUTE
5V