Figure 5-25. 700 Mhz Transmitter And Power Control Schematic Diagram - Motorola HT1250-LS+ Service Manual

Schematic Diagrams, Overlays, and Parts Lists
C102 C104
5.1pF 8.2pF
C101
J101 6.61nH
51pF 10.40nH
L101
L102
C103 C105
2.2pF 3.3pF
R120
5.6K
C113
R101
68pF
240
R102
240 C118
15pF
C108
68pF
L105 C111 C114 C116
22nH 47pF 68pF 15pF
C106
4.3pF
L104
39nH
C112
CR101
51pF
Microstrip Microstrip
C107
1.8pF
C115 C117
50ohm point
10pF 33pF
9.74nH
L103
RX_IN
M101
CR102
HEATSINK
1
C109
POS
1.8pF
Q101
C110 R103
MRF1517
24pF 51
6V to 9V
C119
E101
68pF
88Z01
L107 C123 C124 C126 C129
15pF 68pF 3300pF 1uF
19.61nH
L106
L109
NU
100nH
C131
47pF
R104
NU
C130
3.9pF
Microstrip
C120
NU
R106
1
C125 C127 6
RFOUT1
24pF NU
R107 7
RFOUT2
1
2
R105 VG1
3
2K
VG2
U101
30C65
C132
.022uF
C121
68pF
L108
100nH
C128
.022uF
1.1V to 2.5V
R110
R112
24K 10
C133
68pF
C122
68pF
R108
0
R109
18K
4V to 5.7V
R111
27K
C134
68pF
R116
0.1
C147
68pF
0.07V to 0.12V
L110 C138 C141 C143 C145
100nH 0.1uF 0.1uF 68pF 15pF
0.1uF
27nH
C135
L111
510 Typical +4dBm
R114
68pF
C137
TX_INJ
16
RFIN
1
VCNTRL
14 C165
VD1
1.5pF
11
G2
8
NC1
9
R117
NC2
10 10K
NC3
15
NC4
L112
6.8nH
100pF
C140
C139
9.1pF
C148
68pF
C136
68pF
R115
0
VR101
R118
470K
1
RFIN
2
T1
3
CI
R113 4
INT
200K
5
CJ
C142 6
VL
680pF 7
CL
8
GND1
C144 C146
680pF .01uF
C150
68pF

Figure 5-25. 700 MHz Transmitter and Power Control Schematic Diagram

5-31
E102
BEAD
UNSWB+
C149 C151 C156 C160 C161
15pF 0.1uF 82pF 68pF 15pF
C154 C159
15pF 68pF
C157 C164
.022uF 68pF
R119
3K
2
U103
VOUT
LM50
C152 C155
NU 3
68pF
GND
CLK
DATA
CSX
6V to 9V
C162
68pF
24
VAR3
23
RX
22
NA
21 C163
RS RESET
U102 68pF
20
H99S4 VAR1
19
VLIM
18
VAR2
17
V5EXT 5V
C158
68pF
C153
0.1uF
For High Power setting typical 3.4V
For low Power setting typical 0V