REV:V4.6
Eric.ZX
SCALE:
SIZE:A2
COMPANY:
TITLE:
DATED:
APPROVED:
CHECKED:
DATED:
DATED:
DRAWN:
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HOMNI ENTERPRISES CO,.LTD.
DWG NO:
SHEET: OF
IPA27-MIX&PRE
TOP PCB
71
0
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V4.2
V4.2
V4.2
避免功放高频自激
以下
4
点
V4.5
V4.5
V4.5
V4.5
V4.5
V4.5
V4.6
R254 &
R338=196K
（
EQ
o
f R
I ve
rs
io
n
）
R71 &
R92=30.
1K
，
R8 &
R251=
19.
6K
R206=49.9K, R80=56K
V4.6
2016.01.21
R67 47K
R10
1K
R11 47K
R12
1K
R37 47K
R47 47K
+
C102 100uF
C91 0.1uF
+
C20 100uF
R60
1K
R61
1K
C1 0.1uF
R35
22ohm
R57
22ohm
12
+
13
-
14
U26-D
NJM064
C66 0.1uF
R83 20K
R84 20K
+
C118
22uF
16V
C131 0.1uF
1
2
3
4
5
6
7
8
J4-B
1
2
34
L18
2x10UH
R120 10R
C2 0.1uF
C101 100pF
C104 100pF
C93 100pF
C113 100pF
C42
0.1uF
10
+
9
-
8
U26-C
NJM064
R204
10K
R205
10K
R230
10K
R231
10R
+
C44 47uF
R233
1K
1
IN1
2
IN2
3
IN3
4
CODE2
5
DGND
6
SCL
7
SDA
8
IN4
9
IN5
10
IN6
11
OUT6
12
OUT5
13
OUT4
14
GND
15
REF
16
VCC
17
CODE1
18
OUT3
19
OUT2
20
OUT1
U8
PT2258S
C6
4.7uF
C25
4.7uF
C134 10uF
C110
4.7uF
C199
4.7uF
C46
4.7uF
C18 0.1uF
R20
10R
+
C14 100uF
16V
C19 0.1uF
C156 0.1uF
1
VIN
2
GND
3
ON/OFF
4
BYPASS
5
VOUT
U5
ZHD2405-ADJM5
+
C158 220uF
25V/ESL
R4 62K
R186
10K
C125
4.7uF
C126
4.7uF
R100 10K
R192 10K
C30 0.1uF
1
G
2
D
3
S
Q11
SI2301
1
2
3
Q13
MMBT4401
R41 47K
R43 10K
R75
NC
R77
10K
C63
4.7uF
C99
4.7uF
4
VDD
11
VEE
U4-E
NJM064
R8
19.6k
R228
10K
R250
10K
R251
19.6k
C34
100pF
C40
100pF
C31 1uF
10
+
9
-
8
U30-C
NJM064
1
V+
2
OUT1
3
IN1
4
INT
5
VREF
6
SNS
7
ON
8
IN2
9
OUT2
10
GND
U9 NJM2762
C224
4.7uF
C229
4.7uF
R187
1K
R188
1K
C238 0.47uF
C239 10uF
+
C241 100uF
C242 0.1uF
R189
10R
R206
49.9k
1%,0603
C165
4.7uF
C170
4.7uF
C171
4.7uF
FB
L19
720R@200MHZ
FB
L20 100R
FB
L23 100R
FB
L24 100R
FB
L25 100R
1
G
2
D
3
S
Q9
2N7002
R80
56k
R97 22K
C277 0.1uF
R111
22K
1
2
3
4
5
6
7
8
9
10
J8-B
FB
L26
720R@200MHZ
FB
L27
720R@200MHZ
FB
L28
720R@200MHZ
C270
1nF
C271
1nF
C272
1nF
C273
1nF
C281
1nF
FB
L37
720R@200MHZ
C283
1nF
8
VCC
4
VEE
U10-C
C57 0.1uF
L1
120ohm@100MHZ/3A
FB
L5
1.5K@100MHz
4
VDD
11
VEE
U30-E
NJM064
12
+
13
-
14
U30-D
NJM064
R215
0
R221
80.6k
+
C78 NC
R222
NC
R223
1.58k
R224
NC
R225
0
C133
224
R226
40.2k
C159
224
+
C167
22uF
R238
3.14k
R243 33.2k
R245
681
Ω
+
C168 22uF
C169
221
R254
196k
C217
221
R270
12.1k
R271
56.2k
R294
100k
+
C234
22uf
16V
R305
0
R308
80.6k
+
C245
NC
R327
NC
R329
1.58k
R330
NC
R332
0
C251
224
R333
40.2k
C282
224
R335
3.14k
R336 33.2k
R337
681
Ω
+
C305 22uF
C306
221
R338
196k
C307
221
R339
12.1k
R340
56.2k
R341
100k
+
C309
22uf
16V
C310
474
C311
474
C312
474
R342 5.36K
R343 37.4k
R344
2.1k
5
+
6
-
7
U4-B
NJM064
C62
100pF
R71
30.1k
C60
100pF
C79
100pF
R92
30.1k
C97
100pF
R25
15K
C29
4.7uF
R38
15K
C33
4.7uF
R13
15K
C35
4.7uF
R42
15K
C36
4.7uF
R44
15K
C77
4.7uF
R51
15K
C100
4.7uF
R56
15K
C240
4.7uF
R59
15K
C243
4.7uF
C313
474
C316
474
C319
474
R345 5.36K
R346 37.4K
R347
2.1k
3
+
2
-
1
U4-A
NJM064
+
C218
22uf
16V
+
C308
22uf
16V
C321
4.7uF
C322
4.7uF
R348
20K
C324
100pF
3
+
2
-
1
U26-A
NJM064
5
+
6
-
7
U26-B
NJM064
12
+
13
-
14
U18-D
NJM064
10
+
9
-
8
U18-C
NJM064
5
+
6
-
7
U18-B
NJM064
3
+
2
-
1
U18-A
NJM064
R349
20K
R350
1K
R351 47K
C327 100pF
C328
4.7uF
C329
4.7uF
5
+
6
-
7
U30-B
NJM064
3
+
2
-
1
U30-A
NJM064
R352
20K
C330
100pF
R353
20K
R354
1k
R355
47k
C332 100pF
4
VDD
11
VEE
U26-E
12
+
13
-
14
U4-D
NJM064
10
+
9
-
8
U4-C
NJM064
C333 0.1uF
4
VDD
11
VEE
U18-E
FB
L14
720R@200MHZ
1
2
3
4
5
J18-A
+
C304 22uF
SCL
SDA
A
A
A
A
A
A
A
+9V
A
BIAS
A
+9VA
+9VA
A
A
BIAS
AUX_L
AUX_R
A
A
BIAS
A
ASIG
A
A
MIX_L
MIX_R
+9VA
A
+9V
A
PRE_L-
PRE_R+
A
STB
A
+9VC
BIAS
BIAS
BIAS
A
AA
LIMTER_C
+18VPRE
CHARGE_ON
STB
LIMTER_C
BAT_DET
DGND
+18VE
A
DGND
A
A
BIAS
A
A
BIAS
A
+9VC
BIAS
BIAS
BT_L
RADIO_L
BT_R
RADIO_R
AUX_R
AUX_L
MIC_R
A
BIAS
BIAS
VOL_L
MIC_L
MIC_R
MIC_L
VOL_R
VOL_L
VOL_R
+9VC
BIAS
BIAS
BIAS
BIAS
PRE_R-
PRE_L+
A
