Figure 9-284.900 Mhz Transmitter Schematic Diagram - Motorola HT Series Detailed Service Manual

900 MHz Circuit Board/Schematic Diagrams and Parts List (PCB 8485910Z01)
C109
15pF
C120 CR101
L104
L105
5.34nH 5.34nH
56pF
C124
C114 C126
C115
1.8pF C125
3.3pF
4.3pF 1.8pF
3.6pF
L109
10.40nH
C138
1pF
J101
C140
18pF
SH102
SH100
HF SHIELD
SH101
PA SHIELD
C101
R102
47pF 6V to 9V
240
R103
C107 C108
240
E102
15pF 56pF
L101 C110 C111 C112
15pF
22nH
47pF 56pF
L103
L102
19.61nH
22nH
C121
MICROSTRIP
50ohm point
56pF
C127
C163
6.0pF
24pF
RX_IN
CR102 M101
POS
Q101
D
S
R106
51
R109
2K
PLD 1.5 MRF1517
C146
56pF
1.8V to 2.5V
C116 C117
C118 C119
15pF 3300pF 1uF
56pF
L107
100nH
C134
47pF
MICROSTRIP
C147
0.1uF
R111
1
C142 6 RFIN 16
RFOUT1
20pF 7 RFOUT2 VCNTRL 1
R113
2 VD1 14
VG1
3 G2 11
1 VG2
U101
8
NC1
9
C145
NC2
.022uF 10
NC3
15
NC4
L111
100nH C148
.022uF
R115 R114
10
24K
C151
47pF
C153
56pF
R116
0
R119
18K
2V to 5.7V
R120
27K
C160
47pF
R101
0.07V to 0.12V 0.07V to 0.12V
0.1
C102
C103
56pF 15pF
L108 C130 C131 C132 C133
100nH 0.1uF 0.1uF 56pF 15pF
L112
27nH
R105
150
C128
+4dBm to +7dBm
TX_INJ
47pF
R108
L110
R110
10K
6.8nH
C141
100pF
DATA
C149
9.1pF
CSX
C150
C152
47pF
47pF
R121
0
VR101
5.6V
R117
470K
1 RFIN
2 T1
3 CI
R118
4 INT
U102
200K
5 CJ
6 VL
C156
7 CL
680pF
8 GND1
C157 C158
.01uF
680pF
C161
47pF
Figure 9-284. 900 MHz Transmitter Schematic Diagram
9-461
E101
BEAD
UNSWB+
C165 C104 C105 C106
0.1uF 82pF 56pF 15pF
C122 C123
56pF
15pF
C136 C137
.022uF
56pF
1
POS
2
U103
VOUT
3K
GND
C144
56pF 3
CLK
6V to 9V
C154
47pF
24
VAR3
23
RX
22
NA
C155
21
RS RESET
20 47pF
VAR1
19
VLIM
18
VAR2
17
V5EXT 5V
C159
47pF
C162
0.1uF
For low Power setting typical 0V
For High Power setting typical 2.8V
FL0830706O