Figure 8-37. Automatic Level Control Circuit - Motorola APX 3000 Detailed Service Manual

8-66
DC_RAW_B+
IN
DC_LIN_5V
IN
DC_LIN_3V
IN
DIG_CTRL_ATTH
IN
DIG_CTRL_I_LIMIT
IN
ANA_CTRL_ISET
IN
C1169
33PF
IN
DC_LIN_1_875V_D
R1202
DC_LIN_1_85
0
IN
DIG_SPI_CLK
C1163 IN B2 B1
33PF C2
B2
ANA_CTRL_VSET
IN
R1101
C1164 C1168
10K
HIGH 33PF 33PF
ADDED FOR DEFAULT
DC_LIN_1_875V_D
SN74LVC2T45
DIG_DATA_SPI_MOSI
IN
DIG_CTRL_TX_INH
IN
C1170 C1171
33PF 33PF
DIG_DMCS
IN
U1146
74LVC1G32YZP
C1166 A1
33PF C2
B1
DIG_GPIO49
IN
DC_LIN_1_875V_D
C1167
33PF
VCC
GND
U1146
74LVC1G32YZP
DC_LIN_5V
C1156
33PF
C1106
.01UF
2
VOUT
U1103
LM50

Figure 8-37. Automatic Level Control Circuit

U1150
DC_LIN_5VREF
LT1790
4 6
SW_B+ IN VIN VOUT
3 DNC1
NC
5 DNC2
C1160 NC
C1161
.1UF
GND1
1UF
R1103
E1101
.02
1 2
DC_LIN_5V
DC_LIN_5V
R1169
340K
U1144
TS5A3159
DC_LIN_5V NC
1 NO
R1170
6 IN COM 4
80.6K
5 3
V_POS NC
C1103 GND
.01UF
R1175
R1141
0
510K
U1101
VPOS
INA138
3 1
VINPOS
4
VINNEG
R1108
GND
C1139 68.1K
10PF DC_LIN_5V DAC_C
C1108
.01UF
R1110
3
10K
4
1
U1141 R1158
270K
LPV321M7X
3
R1171 R1172
0 4.7K
1
R1160 C1137 C1138
12K .022UF .022UF
R1104 R1105
100 100
RVS
COUPLER
FWD
C1125
6.8PF
L1101 C1142
33NH 1000PF
R1106 R1168 C1104
100 5.6PF
6.8
DC_LIN_5V
DNP
DC_LIN_5V
U1137
SN74LVC2T45
13 V1
DC_LIN_5V
14
D2 V2
DIR C1116
15 V3
B1 .1UF
A1
C1
A2 2 RF1
U1125 11 RF2
AD5624R
5
ACG1
1
7 SCLK VOUTA 6 ACG2
DC_LIN_5VREF
6 SYNC VOUTB 2 7 ACG3
8 DIN VOUTC 4
R1122
10 5 C1117 GND
VREFIN_VREFOUT
75K
VOUTD 3300PF
DC_LIN_5V
GND CTGND
DAC_C
C1165
R1121
U1138 .1UF 30.1K
D2
DIR
B2 B1
B1 A1 TX_INH
C2 C1
B2 A2
DC_LIN_1_875V_D
DC_LIN_5V
U1139
SN74LVC2T45
U1147
74LVC1G08YZP
A1 C1128
DIR D2
TXH_5V DC_LIN_5V .01UF
C2 B2 B1
B1 A1
B1 C2 C1
B2 A2
IO49 R1178
U1126
10K U1127
LMV7275
R1137 TS5A3159
10K
3 1 NO
4 6 IN
1 5 V_POS
TXH DC_LIN_5V
C1140
OUT
4700PF
VCC U1147
74LVC1G08YZP
GND
DC_LIN_5V
C1119
.01UF
R1125
36K
U1113
LPV321M7X
3
4
1
R1126
16K
R1164
10K
DC_LIN_5V
U1121
M74VHC1GT86
R1165
200 1
3 4
4 DC_LIN_5V 2
1
C1120
U1148
.01UF
LPV321M7X
DC_LIN_5V
R1127 R1166
U1121
20K 200
C1157 M74VHC1GT86
3 33PF VCC
4
C1158
1 GND
33PF
R1128
R1167
10K
U1114
10K
LPV321M7X
DC_LIN_5V
C1162
DC_LIN_5V
33PF
R1138
3 100K
4
DC_LIN_5V
1
R1142
U1143
U1129 100K
LPV321M7X
LMV841
R1144 R1146
3
R1139 100K 100K
100K 4
1
U1130
R1140 3 LMV841
R1143
4
100K 100K
1
R1145
100K
DC_LIN_3V
4
U1104 C1110 C1113
LPV321M7X 33PF
.01UF
U1106
BAND
C1107 LTC5532
L1102
6.8NH 100PF
1 RFIN
4
VM VOUT
3
VOS
R1107 C1105 R1112
68 5.6PF 51
DNP
R1114 R1115
100
100
C1118 DC_LIN_5V
.01UF
C1129
U1112 .01UF
HMC468LP3E
R1163
R1152
1 U1136
NC1 10K 10K
3 3
74LVC1G08YZP
NC2 4 4 A1
NC3 8 1
NC4
9 R1162 U1131 B1
NC5
10
NC6 150K LMV7275
12
NC7
DC_LIN_5V
C1111
.1UF
U1105
AD8315
VPOS
C1126
1 7
1000PF R1124 RFIN
VAPC
51 2
ENBL
3 6
VSET NC NC
4
FLTR
5
R1180
COMM
C1112
0 R1151
GND
.01UF 10K
BAND
BAND
C1123
.01UF
U1128
SN74LVC1G00
C1127 .1UF
DC_LIN_5V
A1
C2
3 B1
R1135
R1136
4
0 10K
4 1
COM
3 U1142 DC_LIN_5V
NC
LPV321M7X
GND
C1124
4700PF
U1128
VCC
SN74LVC1G00
GND
R1182
10K
FILT_RAW_B+
Q1103
NTR1P02T1
2 3
Q1101
U1119
MUN5212T
74LVC1G08YZP
TXH_1
A1 3 R1102
IN 22K
C2 1
100K
B1
TX_INH
DC_LIN_3V
U1119
74LVC1G08YZP
VCC
C1159
33PF GND
Schematics, Boards Overlays, and Parts Lists: Main Board Block: 700–800 MHz (84012501002)
TXH_1 U1149
74LVC1G32YZP
A1
C2
OUT
5 B1
TX_SWI
R1117
75K
DC_LIN_3V
R1116
10K U1149
VCC
74LVC1G32YZP
GND
RF_OUT
L1117
1.65NH
C1122
3PF
RF_OUT
5
1
2
R1198 3
10K 4
C1130
DC_LIN_5V .01UF
U1132
R1174
NL17SZ74
10K
PA_OFFSET
7
PR
2 5
D Q
C2 1 3
CP Q*
6
CLR
R1176
U1133
DC_LIN_5V
1K TS5A3159
R1154
1 NO
VC 10K
6 IN COM 4
5 V_POS 3
NC
VCC GND
DC_LIN_5V
C1141
GND .47UF
R1177
0
FILT_RAW_B+
OUT
OUT
J102
CONN_P
VCTRL
OUT
ANA_RX_FE_FILT_VTUNE
OUT
TX_7V_1
OUT