10.
Circuit Diagrams and PWB Layouts
Audio amplifier
19040_510_100924.ep
s
101111
2010-09-24
B
715G4
3
09
iTV
b
o
a
rd
A
u
dio
a
mplifier
HC02
HC02
1
1
2
2
3
3
4
4
5
5
A
A
B
B
C
C
D
D
GAIN1
GAIN0
GAIN0
GAIN1
SPK_OUT
/SD
MUTE
+12V_AMP
+12V_AMP
+12V_AMP
+12V_AMP
12V
3V3_STBY
+12V_AMP
AUDIO_R
[2]
AUDIO_L
[2]
ǂ
(EMI)
(EMI)
CN601 B5 C601 B4
C602 A1 C60
3
B
3
C604 B
3
C605 B4
C606 B4 C607 B4
C60
8
B
3
C610 B5
C611 B4 C612 B5
C61
3
B2 C614 B2
C615 B1 C616 B
3
C617 B1 C61
8
C
3
C619 B1 C620 B1
D601 A1 D602 A
3
FB601 A2 FB602 A
3
L601 B4 Q601 A1
Q602 A2 R601 B2
R602 A2 R604 A1
R605 A2 R606 A2
R607 A1 R60
8
A4
R609 A5 R610 A2
R611 A1 R61
3
B4
R614 B
3
R615 B2
R617 B
3
R61
8
B2
R619 B2 R620 B2
R622 C
3
R62
3
C
3
R624 D
3
R625 D
3
R626 C5 R627 C5
R62
8
C5 R629 D5
U602 B
3
ZD601 A1
C617
1UF 10V
C617
1UF 10V
R627
0R05 1/4W
R627
0R05 1/4W
C612
4U7 16V
C612
4U7 16V
R601
100K 1/16W 5
%
R601
100K 1/16W 5
%
R607
470OHM1/10W
R607
470OHM1/10W
C607
470N 16V
C607
470N 16V
R615
100R 1/16W 5
%
R615
100R 1/16W 5
%
R626
0R05 1/4W
R626
0R05 1/4W
C60
8
100N16V
C60
8
100N16V
Q602
PMBT
3
904
Q602
PMBT
3
904
C614
1UF 10V
C614
1UF 10V
L601
33u
H
L601
33u
H
R614
10R 1/16W 5
%
R614
10R 1/16W 5
%
R619
100K 1/16W 5
%
R619
100K 1/16W 5
%
C616
1
u
F 25V
C616
1
u
F 25V
R604
1K 1/16W 5
%
R604
1K 1/16W 5
%
C620
470pF
50V
C620
470pF
50V
+
C60
3
33
0UF 16V
+
C60
3
33
0UF 16V
R622
10K 1/10W 5
%
R622
10K 1/10W 5
%
R629
0R05 1/4W
R629
0R05 1/4W
C602
10U 10V
C602
10U 10V
R61
3
0R01 1/10W
R61
3
0R01 1/10W
CN601
PHONEJACK
PHONE JACK 3.5mm 3P V/T BLACK
CN601
PHONEJACK
1
2
3
C604
100N16V
C604
100N16V
R617
100K 1/16W 5
%
R617
100K 1/16W 5
%
R60
8
2.2K 1/10W
R60
8
2.2K 1/10W
U602
TPA
3
124D2PHPR
U602
TPA
3
124D2PHPR
PVCCL
1
SD
2
PVCCL
3
LIN
5
RIN
6
MUTE
4
BYPASS
7
AGND
8
AGND
9
PVCCR
10
VCLAMP
11
PVCCR
12
PGNDL
24
PGNDL
23
LOUT
22
BSL
21
AVCC
20
AVCC
19
GAIN0
18
BSR
16
GAIN1
17
ROUT
15
PGNDR
14
PGNDR
13
TH1
25
C615
1UF 10V
C615
1UF 10V
C61
3
1UF 10V
C61
3
1UF 10V
R602
22K 1/16W 5
%
R602
22K 1/16W 5
%
C619
470pF
50V
C619
470pF
50V
C610
470pF 50V
C610
470pF 50V
ZD601
RLZ10B
ZD601
RLZ10B
1
2
R61
8
62K 1/16W +/-5
%
R61
8
62K 1/16W +/-5
%
R610
22K 1/16W 5
%
R610
22K 1/16W 5
%
D601
LL414
8
D601
LL414
8
C61
8
1
u
F 25V
C61
8
1
u
F 25V
C605
100N16V
C605
100N16V
C611
100N16V
C611
100N16V
C601
220N 25V
C601
220N 25V
R609
2.2K 1/10W
R609
2.2K 1/10W
R62
8
0R05 1/4W
R62
8
0R05 1/4W
+
C606
33
0UF 16V
+
C606
33
0UF 16V
R625
0R05 1/
16W
R625
0R05 1/
16W
FB602
3
00OHM
FB602
3
00OHM
1
2
D602
NC/FB
3
40M
D602
NC/FB
3
40M
1
2
R606
22K 1/16W 5
%
R606
22K 1/16W 5
%
R605
0R05 1/16W
R605
0R05 1/16W
R624
NC/0R05
OHM1/1
6
W
R624
NC/0R05
OHM1/1
6
W
R62
3
NC/-5
%
1/10W
R62
3
NC/-5
%
1/10W
R620
62K 1/16W +/-5
%
R620
62K 1/16W +/-5
%
R611
10K 1/10W 5
%
R611
10K 1/10W 5
%
Q601
PMBT
3
904
Q601
PMBT
3
904
FB601
3
00OHM
FB601
3
00OHM
1
2