Figure 8-162.Automatic Level Control Circuit - Motorola APX 1000 Detailed Service Manual

Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: 900 MHz (84012478001)
DC_RAW_B+
IN
DC_LIN_5V
IN
DC_LIN_3V
IN
DIG_CTRL_ATTH
IN
DIG_CTRL_I_LIMIT
IN
R1171
0
ANA_CTRL_ISET
IN
R1160
12K
IN
DC_LIN_1_875V_D DC_LIN_5V
IN
U1137
SN74LVC2T45
D2
DIR
DIG_SPI_CLK B2 B1
IN B1
A1
C2 C1
B2 A2
ANA_CTRL_VSET
IN
DC_LIN_5VREF
R1101 ADDED FOR DEFAULT
10K
HIGH
DC_LIN_5V
DC_LIN_1_875V_D
U1138
SN74LVC2T45
DIG_DATA_SPI_MOSI
D2
IN DIR
B2
B1 B1
A1
C2 C1
B2 A2
DIG_CTRL_TX_INH
IN
DIG_DMCS U1147
IN
U1146 74LVC1G08YZP
74LVC1G32YZP A1
C2
A1 B2
C2 B1 C2
B1
DIG_GPIO49
IN
DC_LIN_1_875V_D
VCC
VCC
U1147
GND GND 74LVC1G08YZP
U1146
74LVC1G32YZP
R1125
47K
R1126
20K
DC_LIN_5V
C1106 DC_LIN_5V
.01UF
3
POS
4
2 1
VOUT
U1148
LPV321M7X
U1103
LM50
U1150
DC_LIN_5VREF
LT1790
4 VIN 6
SW_B+ IN VOUT
3 DNC1
NC
5
NC DNC2
C1160
C1161
.1UF GND1
1UF
R1103
E1101
.02
1 2
DC_LIN_5V
DC_LIN_5V
C1101 C1102
R1169 3
.01UF 1UF 340K
1
DC_LIN_5V
NC
1 NO
R1170
6 IN 4
COM 80.6K
3
5 V_POS NC
C1103 GND
.01UF U1144
R1175
TS5A3159
R1141
0
510K
VPOS
3 1
VINPOS
4
VINNEG
R1108
GND
U1101
C1139 68.1K
INA138
10PF DC_LIN_5V
DAC_C
C1108
.015UF
R1110
3
10K
4
1
U1141 R1158
LPV321M7X 100K U1104
DNP
LPV321M7X
3
R1172
4.7K
1
C1135
C1137 C1138
.01UF
.022UF .022UF
DNP
R1104 R1105
100 100
RVS
COUPLER
FWD
C1125
6.8PF
L1101 C1142
33NH 1000PF
R1168 C1104
R1106
C1155 100 5.6PF
6.8
5.6PF DC_LIN_5V
DNP
DNP
U1112
HMC468LP3E
13 1
V1
DC_LIN_5V NC1
14 V2 3
NC2
15 V3 4
C1116
NC3 8
.1UF
NC4
2 RF1 9
U1125 11 NC5 10
RF2
NC6
AD5624R 12
NC7
5
ACG1
7 SCLK VOUTA 1 6 ACG2
6 SYNC 2 7 ACG3
VOUTB
8
DIN VOUTC 4
R1122
10 VREFIN_VREFOUT 5 C1117 GND
75K
VOUTD 3300PF
GND CTGND
DAC_C
C1165
.1UF
TX_INH
DC_LIN_1_875V_D
DC_LIN_5V
U1139
SN74LVC2T45
D2 C1128
DIR TXH_5V DC_LIN_5V .01UF
B1
B1 A1
C1
B2
A2
IO49
R1178
U1126
10K U1127
LMV7275
R1137
TS5A3159
3 10K
1 NO
4 6 IN COM
1
5 V_POS NC
TXH GND
C1140 DC_LIN_5V
OUT
4700PF
R1111
0 R1182
10K
DC_LIN_5V
C1119
.01UF
R1129
10K
3 DNP
4
1
U1113
LPV321M7X
R1164
10K
U1121
R1165
M74VHC1GT86
200 1
4
DC_LIN_5V
2
C1120
.01UF
DC_LIN_5V
R1127 R1166 U1121
R1130
20K 200 M74VHC1GT86
10K
DNP
3 VCC
4
1 GND
R1128
10K R1167
U1114 10K
LPV321M7X
DC_LIN_5V
DC_LIN_5V
R1142
100K
4
DC_LIN_5V
R1138
U1143
100K
LPV321M7X
U1129
R1146
LMV841 R1144
R1139 3 100K 100K
4
100K
1
R1140 R1143 3
4
100K 100K
1
U1130
LMV841
R1145
100K
DC_LIN_3V
4
BAND C1110 C1113
33PF .01UF
L1102 C1107
100PF
6.8NH
1
RFIN
4
VM
3
VOS
R1107 C1105 R1112
68 51
5.6PF
DNP
R1114 R1115
100 100
DC_LIN_5V
C1118
.01UF
C1129
.01UF
R1163 R1152
10K 10K
3
4
1
R1162
U1131
150K
LMV7275
DC_LIN_5V
C1111
.1UF
U1105
AD8315
VPOS
C1126
1000PF 1 7
R1124 RFIN
VAPC
2
51 ENBL
3 6
VSET NC
NC
4
FLTR
5
R1180
COMM
0 C1112
R1151
GND
.01UF
10K
BAND BAND
R1181
100K
DNP
C1123
.01UF
U1128
SN74LVC1G00
C1127 .1UF
DC_LIN_5V
A1
C2
3 B1
R1135 R1136
4
0 10K
4 1
3 U1142 DC_LIN_5V
LPV321M7X
C1124
4700PF
U1128
VCC SN74LVC1G00
GND
FILT_RAW_B+
Q1103
NTR1P02T1
2 3
Q1101
U1119
74LVC1G08YZP MUN5212T
TXH_1
A1 3
IN R1102
22K
C2 1 100K
B1
TX_INH
DC_LIN_3V
U1119
74LVC1G08YZP
VCC
GND
U1106
U1149
LTC5532
TXH_1 74LVC1G32YZP
A1
C2
OUT
5 B1 TX_SWI
VOUT
R1117
75K
DC_LIN_3V
R1116 U1149
10K 74LVC1G32YZP
VCC
GND
C1130
.01UF
DC_LIN_5V
R1174
10K
PA_OFFSET
7
PR
U1136
2 5
74LVC1G08YZP
D Q
A1
C2 1 3
CP
Q*
B1
6
CLR
R1176
U1133
DC_LIN_5V 1.21K
U1132
TS5A3159
NL17SZ74
1 NO
MODE_SELECT 6 4 VC
IN IN COM
5 V_POS NC 3
R1154
VCC DC_LIN_5V GND
C1141 10K
GND .47UF
U1136
74LVC1G08YZP
R1177
0
ANA_RX_FE_FILT_VTUNE
Figure 8-162. Automatic Level Control Circuit
8-345
FILT_RAW_B+
OUT
L1117
2.55NH
RF_OUT
OUT
C1122
2.2PF
R1198
10K
VCTRL
OUT
OUT
TX_7V_1
OUT