Figure 8-86. Automatic Level Control Circuit - Motorola APX 1000 Detailed Service Manual

8-192
E1101
DC_RAW_B+ 1
IN
DC_LIN_5V
IN
C1101 C1102
DC_LIN_3V .01UF 1UF
IN
DIG_CTRL_ATTH
IN
DIG_CTRL_I_LIMIT
IN
R1171 R1172
ANA_CTRL_ISET
IN
0 4.7K
C1137
.01UF
IN
DC_LIN_1_875V_D DC_LIN_5V
IN
U1137
SN74LVC2T45
D2
DIR DIR
DIG_SPI_CLK B2 B1
IN
B1 B1 A1 A1
C2 C1
B2 B2 A2 A2
ANA_CTRL_VSET
IN
DC_LIN_5VREF
10
ADDED FOR DEFAULT
HIGH DC_LIN_5V
DC_LIN_1_875V_D
U1138
SN74LVC2T45
DIG_DATA_SPI_MOSI D2
IN DIR DIR
B2 B1
TX_INH
C2 B1 B1 A1 A1 C1
B2 B2 A2 A2
DIG_CTRL_TX_INH
IN
DC_LIN_1_875V_D
DC_LIN_5V
U1139
SN74LVC2T45
DIG_DMCS
IN
U1147
74LVC1G08YZP
U1146
A1
74LVC1G32YZP DIR DIR
A1 C2 B2
B1 B1 A1 A1
C2 B1 C2
B2 B2 A2 A2
B1
DIG_GPIO49
IN
DC_LIN_1_875V_D
R1111
U1146 U1147
74LVC1G32YZP 74LVC1G08YZP
0
VCC VCC VCC VCC
GND GND GND GND
DC_LIN_5V
DC_LIN_5V
C1106
.01UF
R1165
200
3
4
2 1 U1148
U1103
LM50 VOUT VOUT
LPV321M7X
R1127 R1166
20K 200

Figure 8-86. Automatic Level Control Circuit

DC_LIN_5VREF
U1150
LT1790
4 6
IN VIN VIN VOUT VOUT
SW_B+
3
DNC1 DNC1
NC NC
5
NC NC DNC2 DNC2
DC_LIN_5V
2 R1103
.02
DC_LIN_5V
DC_LIN_5V
3
U1143
1
U1144
DC_LIN_5V LPV321M7X
1
NC NC NO NO
6 4 R1170
IN IN COM COM 80.6K
5 3
V_POS V_POS NC NC
C1103
TS5A3159
.01UF
U1101
INA138
3 1
VINPOS VINPOS OUT OUT
4
VINNEG VINNEG
R1108
C1139
10PF 68.1K
DC_LIN_5V DAC_C
C1108
3
.047UF
4 R1110
R1158
1
10K
100K
U1141
DNP
LPV321M7X
U1104
LPV321M7X
3
4
1
C1138
.01UF
R1104 R1105
100 100
RVS
COUPLER
FWD
C1125
L1101 8.2PF C1142
33NH R1168 1000PF
DNP
100
C1104
R1106 DNP
6.8 5.6PF
C1155
5.6PF DC_LIN_5V
C1118
.01UF
U1112
HMC468LP3E
13 1
V1 V1 NC1 NC1
DC_LIN_5V 14 3
V2 V2 NC2 NC2
15 4
V3 V3 NC3 NC3
8
C1116 NC4 NC4
2 9
RF1 RF1 NC5 NC5
.1UF 11 10
U1125 RF2 RF2 NC6 NC6
AD5624R 12
NC7 NC7
5
ACG1 ACG1
7 1 6
SCLK SCLK VOUTA VOUTA ACG2 ACG2
6 2 R1122 7
SYNC SYNC VOUTB VOUTB ACG3 ACG3
8 4
DIN DIN VOUTC VOUTC 75K
5
VREFIN_VREFOUT VREFIN_VREFOUT VOUTD VOUTD
R1121
DAC_C 30.1K
C1126
1000PF
D2
B1 TXH_5V DC_LIN_5V
C1128
C1
IO49 .01UF
U1126
LMV7275
U1127
TS5A3159
3 1
NO NO
4 6 4
IN IN COM COM
1 5 3
V_POS V_POS NC NC
TXH
DC_LIN_5V
OUT C1140
4700PF
R1182
10K
DC_LIN_5V
C1119
.01UF
3
4
U1113
1
LPV321M7X
IN
5114000B52
U1121
M74VHC1GT86
1
4
2 TX_INH
DC_LIN_5V
C1120
.01UF DC_LIN_5V
U1121
M74VHC1GT86
3 VCC VCC
4
1 U1114 GND GND
LPV321M7X
Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: UHF2 (84012432001 / PC000354A01)
DC_LIN_5V
R1138 R1142
4
DC_LIN_5V
100K 100K
U1129
LMV841
3
R1144 R1146
4
R1139
1
100K 100K
U1130
LMV841
100K
3
R1140
100K 4
R1143
1
100K
R1145
100K
DC_LIN_3V
BAND
C1110 C1113
100PF .01UF
U1106
LTC5532
L1102 C1107
1
RFIN RFIN
6.8NH 4
100PF VM VM VOUT VOUT
3
VOS VOS
R1107 R1112
C1105
68 5.6PF 51
DNP
R1114 R1115
100 100
DC_LIN_5V
C1129
.01UF
R1163 3
4 A1
10K
1 U1131
R1162
LMV7275 B1
150K
DC_LIN_5V
DC_LIN_5V
C1111
.1UF
U1105
AD8315
1 7
R1124
51 2 RFIN RFIN VAPC VAPC
ENBL ENBL
3 6
NC NC
4 VSET VSET NC NC
FLTR FLTR
5
COMM COMM
R1180
DNP
0
R1151
R1181
100K
15K
BAND BAND
C1123
U1128
C1127
.01UF SN74LVC1G00
A1
.1UF DC_LIN_5V
C2
B1
3
4
R1135 R1136 U1142
1
DC_LIN_5V
0 10K
LPV321M7X
U1128
SN74LVC1G00
VCC VCC
GND GND
FILT_RAW_B+
2 3
U1119 Q1101
74LVC1G08YZP
MUN5212T
TXH_1 A1 3
C2 1 22K 22K
B1
DC_LIN_3V
U1119
74LVC1G08YZP
VCC VCC
GND GND
FILT_RAW_B+
U1149
TXH_1 74LVC1G32YZP
A1
C2
OUT
5 B1 TX_SWI
R1117
27K
DC_LIN_3V
U1149
74LVC1G32YZP
VCC VCC
GND GND
L1117
1.65NH
C1122
2.7PF
DC_LIN_5V C1130
.01UF
U1132
7 PA_OFFSET R1174
PR PR
10K
U1136 2 5
74LVC1G08YZP
D D Q Q
NL17SZ74
C2 1 3
CP CP Q* Q*
6
CLR CLR
R1176
1K
U1133
TS5A3159
1
NO NO
R1154
MODE_SELECT 6 4 VC
IN IN COM COM
U1136 5 3
74LVC1G08YZP V_POS V_POS NC NC 10K
VCC VCC DC_LIN_5V
C1141
.1UF
GND GND
R1177
0
ANA_RX_FE_FILT_VTUNE
OUT
RF_OUT
OUT
VCTRL
OUT
OUT
TX_7V_1 OUT