Figure 8-44. Nle4278D Uhf Range 1 Transmitter Power Amplifier And Automatic Level Control Circuit - Motorola ASTRO XTS 5000 Detailed Service Manual

Schematics, Board Overlays, and Parts Lists: Transceiver (RF) Boards
V3D
RAWB+
TXB+
V5A
V3D
TXINH
TXRF
SPCK
ADCS
MOSI
RSTL
USEL
TEST_POINT

Figure 8-44. NLE4278D UHF Range 1 Transmitter Power Amplifier and Automatic Level Control Circuit

6881094C31-E
V5A TXB+ RAWB+
MUN5111T1
Q101
MUN5111T1
Q103
RXH
TX7V RAWB+
C104 C102
.01uF .01uF
BLM11A601S BLM11A601S
L104 L103
C106
L105
16 6
RFIN RFOUT1
1 7
15.0nH
VCNTRL RFOUT2
100pF 100pF
14 2
VD1 VG1
C110
11 3
G2 VG2
5.6pF
U102
8 30C65
L109
NC1
9
15.0nH
NC2
10
C113
NC3
C114 C115
15
NC4
.01uF .01uF
100pF
C116
Vgate
RXH
TP111 TP101
TEST_POINT
1 1
TX7V
R111
470K
E105
C122
TP104
BK1005HM471
1000pF
R115
Q108
BCW60B
1K
C125
D104
.01uF
2
C123 C124
3
NC 1000pF .033uF
1
MMBD7000
TXB+ TXB+ TX7V V5A
R101
Q104
Q106 100K
Q102
NTR1P02T1
MUN5212T1
NTR1P02T1
RAWB+
88Z01
C136 L101 C101
E101
1uF 59.71nH 0.1uF
C139
6.8pF
*C137*
33pF
C107 *C108*
*C109*
2
13pF 51pF
Q107
L106 *L107*
12nH 2.2nH
R105 L108
*R126*
15K 47
C117 10K
*R106*
100pF
30K V3D
C126
.01uF
V5A 2 4
C138 1
3
U106
5
LMC7101BIM5X
.01uF
TP103
TEST_POINT
2 1
U103 VOUT
LM50
TXB+
TXB+
R117
C121
10
33pF
1 24
RFIN VAR3
2 23
NC T1 RX
3 22
CI NA NC
4 21
INT RS TP119
U104
5 20
TEST_POINT
CJ H99S4 VAR1 NC
6 19 1
5185765B26
VL VLIM
7 18
CL VAR2
8 17
GND1 V5EXT
C133
.01uF
NC
TXB+
var2 R131
var2 R132
C127 C131 C130
2200pF
2200pF 1uF 0.1uF
C128
R118 R119
100 100 U101
33C23
B1 B2
PORTB1 PORTB2
C103
L110
PORT1 PORT2 2
1
11.20nH
100pF
A2 A1
PORTA2 PORTA1
C111 C112
27pF 9.1pF
R120 R121
100 100
R127
10K
D101
K2 A1
FWD
NC NC2 NC1 NC
R128
C118
A2 220
K1
R107 R109
100pF
10K R103
4.7K 100
R129
D102
47K
A1 1
RVS 6 K2
5 2
NC NC2 NC1 NC
4 3
C119
A2 220
K1
R108 R110
100pF
R104
4.7K 100
MBD330DWT1
V3D
C120
.01uF
3
SPCK
CLK_IO
ADCS 16 1
DATA_OUT
CS
MOSI 15
REFPOS
V3D 14 4
REFNEG EOC NC
2
DATD_IN
13
R114
FS
100K 12
R113
INV_CLK
R112 100K 10
CSTART
100K
FWD 6
A0
7
RVS
A1 U105
8
Vtmp
TLV1544I
A2
9
NC A3
10K
10K
8-67
TX5V
POUT
MISO
VAR3
DAC1
DAC2
November 16, 2006