5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
EARPHONE OUT
EN=HIGH: MUTE
EN=LOW:OPERATING
0: Normal
1
Mute
TIP
Amplifier
MUTE Circuit
DC:1.68V AV:670mVpp DC:0V AC:670mVpp no-load
DC:0V AC:570mVpp load
AMP_L
AMP_R
SD
MUTE
MUTE
SD
+12V_
MUTE
LOUTN
ROUTP
ROUTN
LOUTP
LOUTP
LOUTN
AMP_MUTE
ROUTN
ROUTP
MUTE
AGND GND
AMP_R_1
AMP_L_1
AMP_L_1
AMP_R_1
AMP_L
AMP_R
+5V_Standby
+5V_Normal +12V_Normal
+3.3V_Normal
+12V_AVCC
+12V_AVCC
+12V_Normal
+5V_Standby
+5V_Standby
AMP_MUTE3
EARPHONE-OUTR3
EARPHONE-OUTL3
GND 2,3,4,5,6,7,8,9,11,12,13,14,15,16
P1402
PJ30910
1
2
3
4
5
6
7
8
9
C1526
220uF/10V/NC
10K
R0402
R1461
L24 NC_FB_600R_2A
22.0uH_1.8AL19
22.0uH_1.8AL25
R415
100k
D846
NC
R412
NC_0R
100k/NC
R0402
R1462
R6814
12K/NC
0R/NC
R0402
R1460
R421
4.7K
V404
MMBT3906
1
32
L23
120R/FBI
L1206
V406
MMBT3904/NC
1
3 2
0R
R1459
1000pF
C1454
C1524 22uF/6.3V/X5R
XS403
CON4P2.54MM
1
2
3
4
R1463
10K/NC
R290
1K
C0402
330uF/25V
C296
RT9108NB
TSSOP-28EP_0-65
N16
SD
1
FAULT
2
LINP
3
LINN
4
GAIN0
5
GAIN1
6
AVCC
7
AGND
8
GVDD
9
PLIMIT
10
RINN
11
RINP
12
NC
13
PBTL
14
PVCCR
15
PVCCR
16
BSPR
17
OUTPR
18
PGND
19
OUTNR
20
BSNR
21
BSNL
22
OUTNL
23
PGND
24
OUTPL
25
BSPL
26
PVCCL
27
PVCCL
28
GND
29
CA16
10uF/25V/X5R
12K
R283
R413
10K
22.0uH_1.8AL16
0.47uF/25V/X7R
C1456
0.22uF/25V/X5R
C1448
L26 NC_FB_600R_2A
0.22uF/25V/X5R
C294
L22 10R
L0603
R68240R
0.47uF/25V/X7R
C291
V411
MMBT3904
1
3 2
R6812 0R
1uF/25V/X5R
C1453
R438
10k
0.47uF/25V/X7R
C273
0.22uF/16V/X7RC1455
D845
NC
R411
0R
R416
NC_0R
0R
R1465
C1525 22uF/6.3V/X5R
0R/NC
R0402
R1458
R68230R
R291
100k
R0402
L27 NC_FB_600R_2A
NC_0R
R1464
22.0uH_1.8AL18
0.47uF/25V/X7R
C289
0.22uF/16V/X7RC1447
L28 NC_FB_600R_2A
R440 NC_0R
0.22uF/16V/X7RC1450
1uF/10V/X5RC1458
C1527
220uF/10V/NC
0.22uF/25V/X5R
C271
R420
4.7k/NC
0.22uF/16V/X7RC1457
R414 10k
R437
120K
0.22uF/25V/X5R
C1451
1uF/25V/X5R
C1452
V405
MMBT3904/NC
1
3 2
1uF/25V/X5R
C0603
C1449
1000pF
C269
1uF/10V/X5RC1459
VD401 LL4148
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