66
TK-3178
(
L
)
SCHEMATIC DIAGRAM /
原理图
X57-701 (B/4) 5/6
U
V
W
X
Y
A
TCLK/DTRDO
AFDAT
SCLK
BBRDF/FD
DTRLOAD
AFDIO
AFSTD
AFDIR
R170
0
R238
470k
C183
470p
R183
10k
C121
0.039u
R151
18k
R150
15k
C125
0.1u
C109
10p
R141
1M
1
AGNDIN
2
TXIN
3
TXINO
4
LIML
V
5
EXTLIMIN
6
MOD
7
VDD
8
DTRLOADN
9
STD
10
TCLK/DTRDO
11
TDATA/DTRCLK
12
DI/O
13
RDF/FD
14
SCLK
15
DIR
16
XOUT
17
XIN
18
VSS
19
AMP3P
20
AMP3N
21
AMP3O
22
AMP4P
23
AMP4N
24
AMP4O
25
DTRAIN
26
RXAF
27
RXAFIN
28
EXPOUT
29
FILTERO
30
RXINO
31
RXIN
32
AGND
C99
4.7u
C118
0.1u
C100
4.7u
C102
0.01u
L12
R113
0
C82
100p
R156
300k
R157
300k
C116
22p
R251
470k
R168
470k
R165
150k
C127
180p
C192
1000p
C134
0.047u
L13
R161
120k
C123
68p
R162
120k
C131
820p
C120
2.2u
C191
470p
C200
0.1u
R163
39k
R111
560k
C137
470p
R112
330k
C133
4.7u 6.3
R158
330k
R160
220k
R246
22k
C126
47p
R226
180k
R167
0
R263
0
C113
0.1u
R145
150k
R146
1M
C112
68p
R236
120k
C108
1u
R129
1M
X2
3.6864MHz
L77-1976-05
R131
0
R132
0
R242
100k
R243
470k
2SC4649(N,P)
Q32
C187
0.01u
C89
1p
C188
27p
C186
27p
C88
1p
R240
470k
2SC4649(N,P)
Q31
C185
0.01u
R239
100k
R244
47k
R241
47k
C95
0.22u
R119
100
R130
470k
C84
470p
R176
68k
R155
22k
R164
180k
C122
470p
C110
470p
R142
22k
R149
1M
C135
1u
C176
0.22u
C106
470p
5MS
PTTI
PTTI
DACCLK
PTTO
DACDAT
DACDAT
DACCLK
FILTERO
OPTDET
TXD1
AUDIO PROCESSOR
CLOCK SHIFT SW
5MS
OPTDET
DACLD
TX
DACLD
EXTLIMIN
PTTO
AM2
TXD1
AUDIO PROCESSOR
CLOCK SHIFT SW
VOXIN
VREF
VREF
AM2
AGND
AGND
5T
SB
LSW
VOXMUTE
5C
OPST
MMUTE
AFCO
5R
OPST
MMUTE
SB
5C
5T
5R
AFCO
5MS
TX
DEO
Q21
RN4910(F)
AF SW
2SJ243-A
Q30
MIC
MUTE SW
SSM3K15TE(F)
Q22
AF MUTE SW
SSM3K15TE(F)
Q34
EXT. ALERT
INPUT ATT SW
IC13
AQUA-L
AUDIO PROCESSOR
SSM3K15TE(F)
Q19
VOX LEVEL
DETECTOR
CONTROL SW
D29
RB706F-40
VOX LEVEL
DETECTOR
D32
DA221
VOX AMP
GAIN LIMITER
7.5V
POWER ON:5V
OFF:0V
TX-RX UNIT (X57-7013-06) (B/4)