10.
Circuit Diagrams and PWB Layouts
10-4-4
B04, Audio amp, Short protection, Headphone amp
19710_502 _140409.ep
s
140409
A
u
dio
a
mp -
S
hort protection - He
a
dphone
a
mp
B04
B04
17m
b8
2
s
-R2
A
u
dio
a
mp
S
hort protection
He
a
dphone
a
mp
3V3_AVCC
AMP_EN
AOSDATA0
AOLRCK
HP_NEG_RIGHT
16V
C1286
10u
R2215
18R
C283
1u
6V3
MAIN_R
5V_VCC
S93
R2213
100R
100nC1154
16V
1V2_MT5820
TP192
1
HP_NEG_LEFT
MAIN_L
MAIN_R
MAIN_DAC_R
MAIN_L
AOSDATA0
AOLRCK
F7
60R
33p
C190
10V
220u
C795
R219
27k
1u
C252
MAIN_DAC_L
270p
C238
R182
100k
SC_AUD_R_OUT
SC_AUD_L_OUT
1k
F191
R500
33k
2
1
Q7
BC848B
3
2
1
HP_AMP_EN
C280
10u
R255
56k
68k
R259
C293
150p
50V
VDD_AUDIO/2
100k
R183
SC_DAC_L
16V
C99
10u
SC_DAC_R
HP_AMP_EN
HP_AMP_MUTE
33k
R489
100n
C1334
MAIN_R
C1329
12p
50V
12V_VCC
S116
TP207
1
220n
50V
C1338
18R
R2216
100n
C1336
R78
10k
2
1
AOBCK
12V_VCC
R2098
47R
MAIN_L
AOMCLK
R2119
10k
2
1
4k7
R68
R64
100R
R647
10k
10k
R2120
2
1
R2121
10k
2
1
16V
C1195
10u
10u
C1196
16V
10k
R2122
2
1
R79
10k
2
1
AMP_EN
HP_NEG_RIGHT
3V3_AMP
HP_NEG_LEFT
R243
33k
2
1
R244
33k
2
1
VDD_AUDIO/2
100R
R2209
R2210
100R
AOBCK
3V3_VCC
R322
100R
3V3_VCC
5V_VCC
R494
10k
BC848B
Q10
3
2
1
24V_VCC_AU
10k
R92
2
1
AOMCLK
16V
C1328
100n 3V3_AMP
3k9
R86
D39
BAW56
3
2
1
10k
R82
2
1
R83
10k
2
1
Q9
BC848B
3
2
1
BC858B
Q42
3
2
1
10k
R84
2
1
3V3_STBY_1
R490
33k
2
1
L4
10u
BAW56
D40
3
2
1
R85
10k
2
1
D41
BAW56
3
2
1
VDD_AUDIO/2
33k
R245
2
1
C34
100n
10V
2
1
PROTECT
R246
33k
2
1
C139
100n
10V
TP26
1
TL062
U8
8
7
6
5
4
3
2
1
OUT1
IN1-
IN1+
VSS
IN2+
IN2-
OUT2
VDD
VDD_Lineout
6V3
1u
C281
C1335
100n
C1339
50V
220n
C1337
100n
18R
R2217
3k3
R464
100n
C1330
VDD_AUDIO
C1331
100n
100n
C1332
1k5
R467
C1333
100n
R381
47k
33k
R308
2
1
10u
10V
C674
C253
1u
TP193
1
10u
C420
220n
50V
C1340
C533
1u
C1341
50V
220n
DRV632
U2
8
9
10
11
12
13
14
7
6
5
4
3
2
1
INR_P
INR_N
OUTR
GND
MUTE
VSS
CN
INL_P
INL_N
OUTL
UVP
GND1
VDD
CP
R93
10k
2
1
R692
100k
2
1
Q8
BC848B
3
2
1
R80
10k
2
1
16V
C620
100u
21
12V_VCC
S21
2
1
R691
100k
2
1
16V
C146
100n
VDD_AUDIO
S22
2
1
10k
R1983
2
1
4k7
R824
AMP_MUTE
3V3_AMP
BC858B
Q41
3
2
1
A_OUT2B
A_OUT2A
A_OUT1B
A_OUT1A
4k7
R65
100n
C152
10V
2
1
R2218
18R
AMP_EN
220R
F23
VDD_AUDIO
PT2333
U23
A1
A2
A3
B1
B2
B3
C1
C2
C3
OUTP
SDB
INN
GNDB
VDD1
VDDA
OUTN
GNDA
INP
AMP_EN
VDD_AUDIO
R66
4k7
10V
100n
C29
2
1
C143
100u
35V
PT2333
U7
A1
A2
A3
B1
B2
B3
C1
C2
C3
OUTP
SDB
INN
GNDB
VDD1
VDDA
OUTN
GNDA
INP
10V
C306
220n
R67
4k7
10V
C205
220n
220n
10V
C193
220n
C191
10V
100n
10V
C140
TP11
1
100R
R1
C1176
10u
25V
24V_VCC_AU
C141
10V
100n
R40
10k
2
1
BC848B
Q14
3
2
1
100n
C21
16V
Q17
BC848B
3
2
1
R100
4k7
3V3_AMP
33k
R247
100k
R188
50V
150p
C294
68k
R260
56k
R258
50V
12p
C265
C268
12p
50V
10u
C284
C250
1u
R237
47k
33p
C196
27k
R224
C242
270p
R189
100k
1u
C251
47k
R238
12V_VCC
VDD_Lineout
6V3
1u
C534
3V3_AMP
3V3_VCC
A_OUT2B
A_OUT2A
OPCTRL1
AD82587D
U62
13
14
15
16
17
18
19
20
21
22
23
24
12
11
10
9
8
7
6
5
4
3
2
1
PD
ERROR
SDATA
LRCIN
SDA
SCL
RESET
DGND
DVDD
SA0
MCLK
BCLK
VDDLA
N.C.2
LA
GNDL
LB
VDDLB
VDDRB
RB
GNDR
RA
N.C.1
VDDRA
100R
R2211
R2212
100R
R2214
4k7
3V3_AMP
SYS_SDA
SYS_SCL
VDD_AUDIO
VDD_AUDIO
VDD_AUDIO
VDD_AUDIO
A_OUT1A
L_OUT_N
L_OUT_P
R_OUT_N
R_OUT_P
A_OUT1A
A_OUT1B
L_OUT_P
L_OUT_N
L5
10u
L2
10u
220n
C307
50V
R_OUT_P
50V
220n
C311
R_OUT_N
10u
L3
220n
50V
C312
A_OUT2A
A_OUT2B
CN13
4
3
2
1
C313
220n
50V
S141
A_OUT1B
C287
50V
1u
1u
50V
C286
1u
C288
50V
1u
C302
50V
50R
F172
S200
F22
220R
100n
16V
C245
10u
10V
C675
C698
50V
220n
C699
50V
220n
16V
10u
C704
TP194
1
TP195
1
F18
220R
220R
F9
24V_VCC_AU
VDD_AUDIO
R804
6k8
R88
10k
2
1
3V3_VCC
R81
5k1
R657
47k
Q43
BC858B
3
2
1
GND1
GND1
3V3_AMP
A_OUT2B
A_OUT2A
A_OUT1B
A_OUT1A
AOMCLK
NC
2w5 30069845
HEADPHONE AMP
NC
RIGHT
LEFT
NC
NC
NC
SHORT CCT PROTECTION
NC
NC
AUDIO AMP for 16" to 24"
8W 30067972
15u
30068742
30068742
15u
15u
15u