Figure 12-32. Uhf (438-470 Mhz) Transmitter And Power Control Schematic Diagram (8486348Z13-C) - Motorola CP150 Service Manual

12-42
0 V (Rx)
3.3 V (Tx)
TX_ENA
PA_TX_ENA
5T
PA_5T
C109
0.1uF
+11.7 dBm
860 mV (RF)
R101 C100
5.6 390pF
TX_INJ
PA_TX_INJ
R100 R102
820 820

Figure 12-32. UHF (438-470 MHz) Transmitter and Power Control Schematic Diagram (8486348Z13-C)

June, 2005
USWB+
PA_USWB+
7.5 V (Rx)
0 V (Tx)
4
Q170
EMB10
Q171
3
R158
C156 1.5K
.01uF
4.4 V (Hi)
3.6 V (Lo) (TYP, Tx)
8
TP150
1
1
4
U150-1
LM2904
PWR_SET
PA_PWR_SET R162
10K
2.6 V (Hi)
1.8 V (Lo) (TYP, Tx)
R110
680
C111 R111
R106 390pF 2K
C114 R107 L100
390pF 4.7K 220nH
NU
+18.5 dBm
C102
1900mV (RF)
0.1uF
C103
390pF L101
220nH
R105
2.7K
1
C105
L102
3.6nH 3.9pF
2 Q100
BFG540W
1.38 V (Tx)
0.65 V (Tx)
C104
R103 C120
10pF
3K NU
R104 C101 C108
18 0.1uF 390pF
SH100
SHIELD
1
7.5 V
C170
390pF
5 6
2 1
0 V (Rx)
6.8 V (Tx)
C171
390pF
C157
0.1uF
C154
C155
390pF
R152
0.1uF
100K
R153 1%
100K
C151
1%
390pF
Q150
C150
3 8 6
390pF
1 7
5
R157
4
2
2.2K
R154
2
100K
U150-2
R155 1%
3 LM2904 100K
C152 1%
390pF
C159 R156 C153
390pF 330 0.47uF
C158
390pF
C113 C115 C116
2.73 V (Hi)
L110
390pF 1uF 0.1uF
220nH
2.32 V (Lo) (TYP, Tx)
C112 C173 VR110
0.1uF 390pF MM3Z3V9T1
3.9V
DO NOT MEASURE
2 3
D120
L103 C106
MA4PH261
5.1nH 390pF
1 4
RFIN RFOUT
C117
390pF
+18.7 dBm
1930 mV (RF)
5
C107
U110
NU
RA07M4452M_UHF
0.9 V (Tx)
0 V (Rx)
C130
5.1pF
UHF (438-470 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486348Z13-C)
U151
57R01
R151
39
R150
0.1
C172
390pF
R120
150
R121
150
C121
390pF
L120
220nH
C131 C133 C135
C137
NU NU NU
220pF
L130 L131 L132
17.02nH 17.02nH 17.02nH
C122
C132 C134 C136
6.8pF 6.8pF 4.3pF
L140
43pF
RX_OUT
L121 C124 PA_RX_OUT
15nH
390pF
NC
D121
C123
MA4PH261 3.9pF
C141 L141
30.54nH
NU
4 S1
3 S2
2 G1
5 G2
1
T1
6
T2
J140
M140
ANTENNA_NUT
1 3
TAB1 TAB3 NC
2 4
TAB2 TAB4 NC
6880309N62-C