Figure 8-56. Nuf6750A Transmitter And Automatic Level Control Circuits - Motorola APX 5000 Service Manual

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8-88
DC_REF_B+
IN
DC_RAW_B+
IN
DC_LIN_5V
IN
C1101
C1102
DC_LIN_3V
IN
.01UF
1UF
DC_LIN_5V
DC_LIN_3.3V
R1183
1K
R1184
2.2K
DIG_CTRL_I_LIMIT
IN
ANA_CTRL_ISET
IN
R1171
R1172
0
1K
R1160
C1137
10K
.015UF
HF_OUT_1
2
TX1
IN
4
TX2
21
TX3
23
TX4
V1_V2
15
V1
14
V2
V3
13
V3
1
NC1
3
NC2
5
NC3
7
NC4
9
NC5
10
DC_LIN_1_875V_D
DC_LIN_5V
IN
U1137
SN74LVC2T45
D2
DIG_SPI_CLK
DIR
B2
B1
IN
B1
A1
C1
C2
B2
A2
ANA_CTRL_VSET
IN
DC_LIN_5VREF
DC_LIN_5V
DC_LIN_1_875V_D
C1165
.1UF
U1138
SN74LVC2T45
DIG_DATA_SPI_MOSI
DIR D2
IN
B2
B1
B1
A1
C2
C1
B2
A2
TX_INH
DIG_CTRL_TX_INH
IN
DC_LIN_1_875V_D
DC_LIN_5V
U1139
DIG_DMCS
U1147
SN74LVC2T45
IN
U1146
74LVC1G08YZP
A1
74LVC1G32YZP
DIR
A1
C2
B2
B1
A1
C2
B1
C2
B2
A2
B1
DIG_GPIO49
IN
DC_LIN_1_875V_D
TXH
VCC
VCC
GND
GND
U1146
U1147
74LVC1G32YZP
74LVC1G08YZP
R1125
100K
R1126
39K
DC_LIN_5V
DC_LIN_5V
C1106
.01UF
R1165
200
3
4
2
1
VOUT
U1148
LPV321M7X
U1103
R1127
R1166
LM50
51K
200
R1128
22K
U1114
LPV321M7X

Figure 8-56. NUF6750A Transmitter and Automatic Level Control Circuits

U1150
DC_LIN_5VREF
LT1790
4
VIN
6
VOUT
3
NC
DNC1
5
C1160
DNC2
C1161
NC
1UF
.1UF
R1103
E1101
DC_LIN_5V
.02
1
2
DC_LIN_5V
DC_LIN_5V
R1169
3
340K
U1144
1
TS5A3159
DC_LIN_5V
U1143
NC
1
NO
R1170
LPV321M7X
6
IN
4
COM
100K
3
5
V_POS NC
GND
C1103
.01UF
R1175
R1141
0
510K
U1101
VPOS
INA138
3
1
VINPOS
4
VINNEG
GND
R1108
82K
C1139
10PF
DC_LIN_5V
DAC_C
C1108
.068UF
3
4
R1158
1
R1110
100K
DNP
U1141
10K
LPV321M7X
3
4
1
U1104
LPV321M7X
C1135
C1138
.01UF
.022UF
DNP
DC_LIN_3.3V
R1104
R1105
100
100
U1102
PE42650
COUPLER_REV
8
RX
L1108
11
RES
NC
5.45NH
COUPLER_THROUGH
28
ANT
COUPLER_FWD
16
NC7
NC
17
NC8
19
NC9
20
C1125
NC10
22
15PF
NC11
24
NC12
DNP
C1142
26
L1101
NC13
27
NC14
47NH
1000PF
29
NC15
30
NC16
31
NC17
R1168
C1104
R1106
0
5.1PF
C1118
27
DNP
DC_LIN_5V
.01UF
U1112
HMC468LP3E
13
V1
1
DC_LIN_5V
NC1
14
3
C1116
V2
NC2
15
V3
4
.1UF
NC3
8
NC4
2
RF1
9
NC5
U1125
11
10
RF2
NC6
12
AD5624R
NC7
5
ACG1
1
7
SCLK
6
ACG2
VOUTA
6
SYNC
2
7
ACG3
VOUTB
4
8
DIN
VOUTC
R1122
10
VREFIN_
5
GND
VOUTD
75K
VREFOUT
C1117
R1121
GND
CTGND
3300PF
C1126
DAC_C
30K
1000PF
C1128
D2
DC_LIN_5V
.01UF
B1
TXH_5V
C1
IO49
R1178
U1126
10K
U1127
LMV7275
R1137
TS5A3159
10K
3
1
NO
4
6
4
IN
COM
1
5
V_POS NC
3
GND
DC_LIN_5V
C1140
OUT
4700PF
R1182
10K
DC_LIN_5V
C1119
.01UF
R1129
10K
3
DNP
4
TXH_1
IN
1
U1113
LPV321M7X
R1164
10K
IN
U1121
M74VHC1GT86
1
4
DC_LIN_5V
2
TX_INH
C1120
.01UF
DC_LIN_5V
R1130
10K
DNP
3
VCC
U1121
4
M74VHC1GT86
1
GND
R1167
10K
DC_LIN_5V
R1142
R1138
100K
100K
4
DC_LIN_5V
U1129
LMV841
R1146
R1144
R1139
3
100K
100K
4
100K
1
U1130
R1140
3
LMV841
R1143
4
100K
100K
1
TXH_2
R1145
100K
DC_LIN_3V
C1110
C1113
100PF
.01UF
U1106
LTC5532
L1102
C1107
6.8NH
100PF
VCC
1
RFIN
4
VM
VOUT
3
VOS
R1107
R1112
C1105
68
51
5.6PF
DNP
R1114
R1115
100
100
DC_LIN_5V
DC_LIN_5V
C1129
.01UF
R1163
R1152
U1136
10K
3
10K
74LVC1G08YZP
4
A1
1
U1131
B1
R1162
150K
LMV7275
DC_LIN_5V
DC_LIN_5V
C1111
.1UF
U1105
AD8315
R1124
1
VPOS
6
NC
2
RFIN
NC
7
51
ENBL
VAPC
3
4
VSET
FLTR
COMM
C1112
R1151
.01UF
5.1K
R1180
R1181
0
100K
DNP
C1123
.01UF
U1128
C1127
.1UF
SN74LVC1G00
DC_LIN_5V
A1
C2
3
B1
R1135
R1136
4
0
10K
1
U1142
DC_LIN_5V
LPV321M7X
C1124
4700PF
U1128
VCC
SN74LVC1G00
GND
FILT_RAW_B+
Q1101
U1119
MUN5212T
TX_7V
74LVC1G08YZP
2
3
OUT
TXH_2
A1
3
22K
C2
1
Q1103
DIG_CTRL_ATTH
B1
R1102
NTR1P02T1
IN
100K
DC_LIN_3V
VCC
U1119
74LVC1G08YZP
GND
Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: 700–800 MHz
TXH_1
V3
V1_V2
U1116
74LVC1G32YZP
A1
C2
U1118
U1117
B1
74LVC1G32YZP
NC7WZ04
A1
DC_LIN_3V
C2
1
6
B1
U1116
DC_LIN_3V
74LVC1G32YZP
DC_LIN_3V
VCC
GND
U1117
U1118
VCC
VCC
NC7WZ04
74LVC1G32YZP
GND
GND
5
R1117
75K
R1116
10K
DIG_CTRL_RMTH
13
IN
VCTRL
28
INPUT_OUTPUT
1
NC1
4
NC2
5
NC3
6
NC4
7
NC5
8
NC6
9
NC7
10
NC8
14
NC9
15
NC10
C1130
.01UF
U1132
R1174
NL17SZ74
10K
PA_OFFSET
7
PR
2
5
D
Q
C2
1
3
CP
Q*
6
CLR
R1176
U1133
1K
TS5A3159
1
NO
6
4
VC
R1154
IN
COM
10K
5
V_POS NC
3
GND
VCC
DC_LIN_5V
C1141
GND
.1UF
R1177
0
RF_RX_DIPLEX_OUT
R1186
0
DNP
C1149
C1122
L1104
2.2PF
10PF
0
L1103
C1132
4.7NH
16NH
2
GND
L1114
U1149
11NH
AT267
C1150
1.2PF
U1117
NC7WZ04
3
4
FILT_RAW_B+
OUT
C1162
1UF
DNP
RF_ANT
OUT
DC_LIN_3.3V
U1111
PE42510
23
ANT2
2
ANT1
11
R1
NC
16
R2
NC
17
NC11
18
NC12
19
NC13
20
NC14
21
NC15
RF_AUX
24
NC16
OUT
26
NC17
29
NC18
31
NC19
VCONTROL
OUT
RX_IN
OUT
C1152
330PF
OUT
ANA_RX_FE_FILT_VTUNE
DC BIAS FOR GPS LNA ADDED TO RF BOARD
(FROM EXPANSION BOARD/GPS IC: GPS_LNA_PON)

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