Motorola CP040 - Page 274

3-26 UHF1 PCB 8416205H02-C/-D Schematic Diagrams
UHF1 (403-440 MHz) Transmitter and Power Control Schematic Diagram PCB No. 8416205H02-C/-D
3.3 V (Tx)
7.5 V (Rx)
0 V (Tx)
4.4 V (Hi)
3.6 V (Lo) (TYP, Tx)
0 V (Rx)
6.8 V (Tx)
2.6 V (Hi)
2.73 V (Hi)
2.32 V (Lo) (TYP, Tx)
+11.7 dBm
860 mV (RF)
1.38 V (Tx)
0.65 V (Tx)
+18.7 dBm
1930 mV (RF)
1900mV (RF)
DO NOT MEASURE
0.9 V (Tx)
0 V (Rx)
7.5 V
0 V (Rx)
1.8 V (Lo) (TYP, Tx)
+18.5 dBm
C171
390pF
C170
390pF
R150
0.1
C103
390pF
R107
NU
C109
0.1uF
390pF
C158
C154
390pF
PA_5T
390pF
C106
2
G1
5
G2
4
S1
3
S2
1
T1
6
T2
C104
10pF
J140
U150-2
LM2904
6
5
7
8
4
22.69nH
2
3
1
8
4
L132
0.1uF
U150-1
LM2904
R154
C112
4.7K
100K
1%
100K
1%
R153
R106
C100
390pF
R152
1%
100K
C133
NU
390pF
C113
220nH
L110
R159
0
C123
3.9pF
390pF
R158
C121
L141
22.69nH
1.5K
390pF
C124
5
23
64
1
Q170
EMB10
C116
C137
220pF
0.1uF
2.7K
R105
330
R156
C122
1
3
2
6.8pF
C134
SH100
SHIELD
1
Q150
L120
220nH
D121
MA4PH261
39
R151
820
R102
15nH
L121
L100
220nH
NC
Q171
390pF
C159
PA_USWB+
PA_TX_ENA
5.1nH
L103
TP150
1
C105
3.9pF
PA_TX_INJ
PA_PWR_SET
NC
6.8pF
C132
MM3Z3V9T1
3.9V
VR110
C107
0.1uF
C157
NU
L130
22.69nH
NC
R100
390pF
C114
820
390pF
C152
C173
390pF
390pF
C108
R121
150
390pF
C111
C135
NU
4
0.1uF
C101
M140
ANTENNA_NUT
TAB1
1
TAB2
2
TAB3
3
TAB4
C156
C131
NU
.01uF
27.42nH
L131
PA_RX_OUT
R103
2.2K
3K
5.6
R157
R101
5
DN
G
1
RFIN
4
RFOUT
3
D
D
V
2
GGV
RA07M4452M_UHF
U110
150
R120
R155
1%
100K
10K
R162
390pF
C117
3.6nH
L102
18
680
R110
R104
C151
D120
MA4PH261
C172
390pF
390pF
C141
43pF
L140
NU
C150
390pF
NU
C130
5.1pF
C120
BFG540W
Q100
2
1
R111
57R01
U151
2K
L101
C115
1uF
220nH
4.3pF
C136
0.1uF
0.47uF
C153
C102
5T
PWR_SET
TX_ENA
USWB+
RX_OUT
TX_INJ