Motorola ASTRO XTS 5000 Detailed Service Manual page 198

8-52
V3D V5A TXB+ RAWB+
RAWB+
TXB+
V5A
V3D
TXINH
RXH
TX7V
C104
.01uF
L104
BLM11A601S
C106
16
TXRF RFIN
1
VCNTRL
100pF
14
VD1
11
G2
8
L109
NC1
9
15.0nH
NC2
10
C113
NC3
15
NC4
100pF
C116
np=NOT PLACED
Vgate
SPCK
ADCS
MOSI
RSTL
USEL
RXH
1
TP111
TX7V
E105
BK1005HM471
Q108
BCW60B
C125
.01uF
Figure 8-35. NLE4272A UHF Range 1 Transmitter Power Amplifier and Automatic Level Control (TX_ALC) Circuit
July 21, 2004
V3D
Q101
MUN5111T1
10K
TXB+ TXB+
10K
R101
Q106 100K
Q103
MUN5212T1
MUN5111T1
22K
10K
RAWB+
22K
10K
E101
88Z01
RAWB+
C102
.01uF
L103
BLM11A601S
C107 C109 C108
L105
6
RFOUT1
7
15.0nH
RFOUT2
100pF 12pF 43pF
2
VG1
3 C110
L106 L107
VG2
5.6pF
12nH 3.3nH
U102
30C65
R105 L108
C114 C115
15K 47
.01uF .01uF
4 5 12 13 17
C117
R106
100pF
10K
V5A
C138
1 .01uF
2
U103 1
VOUT TP103
LM50
3
1 TXB+
TP101
R111
470K C121
33pF
C122 1
TP104
RFIN
1000pF
2
NC T1
3
1
CI
R115
4
U104
INT
5
H99S4
1K
CJ
6
5185765B26
VL
7
D104
CL
2 8
GND1
3 C123 C124
NC
1000pF .033uF
1
MMBD7000
NC
C128 C127
2200pF
2200pF
TX7V V5A
Q102 Q104
MGSF1P02LT1 MGSF1P02LT1
C136 L101 C101
1uF 59.71nH 0.1uF
R118
100
C139
C103
L110
6.8pF
11.20nH
100pF
6
Q107
C137 C111 C112
27pF
33pF 9.1pF
2
1 3 4 5 7 8
R126 R127
10K 15K
V3D
C126
.01uF R128
2 4
1
C118
10K
100pF
3
U106
5
LMC7101BIM5X
R129
47K
C119
100pF
V3D
TXB+
SPCK
R117
10 ADCS 16
MOSI 15
24 14
V3D
VAR3
23
RX
22 13
R114 100K
NA NC
21 R113 100K 12
RS
20 R112 100K 10
VAR1 NC
19 1
VLIM TP119
18
FWD
VAR2
17 RVS
V5EXT
Vtmp
NC
C133
.01uF
TXB+
var2 R131 10K
var2 R132
10K
C131 C130
1uF 0.1uF
Schematics, Board Overlays, and Parts Lists: Transceiver (RF) Boards
TX5V
R119
100
U101
33C23
B1 B2
PORTB1 PORTB2
1 PORT1 PORT2
2
POUT
A2 A1
PORTA2 PORTA1
R120 R121
100 100
D101
FWD K2 A1
NC NC2 NC1 NC
A2 K1
R107 R109 R103
220
4.7K 100
D102
RVS 6 K2 1
A1
5 2
NC NC2 NC1 NC
4 3
A2 K1
R108 R110 R104
220
4.7K 100
MBD330DWT1
5
C120
.01uF
3
CLK_IO
1
CS DATA_OUT MISO
REFPOS
4
REFNEG EOC NC VAR3
2
DATD_IN DAC1
FS DAC2
INV_CLK
CSTART
6
A0
7
A1 U105
8
TLV1544I
A2
9
A3
11
63B81097C00-O
6881094C31-D