Figure 9-266.800 Mhz Transmitter Schematic Diagram (Rev A) - Motorola HT Series Detailed Service Manual

9-422
C158
R101
56pF
240
R102
240
C108
L104 C159 C112
68pF
220nH 56pF
68pF
L113
27nH
CR101
C113
56pF
C114
6.0pF
50ohms point
L103
RX_IN
8.01nH
CR102
C110
2.4pF
C111
R103
18pF 51
C103
C106
NU 6.8pF
J101
C101
L101 L102
6.61nH 6.61nH
56pF
C104 C105
C102
1.3pF
3.3pF
NU
SH100
SH102
CHASSIS_CONTACT
M100
1
1
HF SHIELD
Figure 9-266. 800 MHz Transmitter Schematic Diagram (Rev A)
6V to 9V
C152 C153
E102
68pF
18pF
C147
18pF
L106
C140 C119
19.61nH
18pF
68pF
Microstrip Microstrip
C115
Q101
12.0pF
C118
R105
2K
18.0pF
TX_INJ
1.8V to 2.2V
R109
C109
5.1pF
75K
C116
68pF
R106
C107 0
1pF
SH101
C117 R107
68pF 39K
R108
PA SHIELD
24K
C143 C144
3300pF 1µF
50 ohms point
L112
4.22nH R112 C128
L111
8.2nH
0
56pF
C123 L107
C121
NU 6.8nH
5pF
L110
R111
5.6nH
10
C127
C142 C124
.022µF 68pF
50 ohms point
R110
L108
15nH
75
C122
NU
+4dBm to +8dBm
R114
510
C154 C133
56pF
56pF
C129
.022µF
R113
200K
C126
2V to 5.7V
680pF
L109
220nH
C155
56pF
800 MHz Circuit Board/Schematic Diagrams and Parts List (PCB 84860641Z02 / 8480641Z03 (Rev B)
E101
BEAD
R104
1
IN OUT
0.1
C160 C161
68pF
18pF
0.07V to 0.12V
C141
5.5V to 7.5V
4.7pF
5.5V to 7.5V
R116
2.7pF 3K
GND5
C156
12 R117 C157
VCC2 GND4
10K NU 68pF
6 U101 11
GND3
10
VCC1 GND2
5 3
GND1
2
CLK
DATA
Microstrip
CSX
6V to 9V
C134
56pF
C131 C125
C148
68pF
68pF
18pF
R115
470K
1
RFIN VAR3
2
T1 RX
3
CI NA
4
INT U102 RS
5
CJ VAR1
6
VL VLIM
7
CL VAR2
8
GND1 V5EXT
C130 C132
680pF .01µF
C135
C136
56pF
0.1uF
3
UNSWB+
C162
C163 C164
82pF
68pF 18pF
UNSW_LPLUS_4_PA
C150 C151
18pF 68pF
C139 C145 C146
.022µF 68pF
NU
2
U103
VOUT
3
GND
6V to 9V
C149
56pF
24
23
22
21
RESET
20
19
18
17
5V
C138
56pF
For High Power setting typical 4.5V
For low Power setting typical 0V