Motorola CP150TM User Manual
Page 204
12-22
UHF (438-470 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486348Z09-A)
June, 2005
6880309N62-C
-7.5 dBm
18 mV (RF)
-10.3 dBm
13.2 mV (RF)
+7.5 dBm
363 mV (RF)
1.93 V (RX)
3.66 V (RX)
4.2 V (RX)
4.2 V (RX)
5 V (RX)
0 V (TX)
+2 dBm
133 mV (RF)
-0.67 dBm
483 mV (RF)
+8 dBm
218 mV (RF)
+5.5 dBm
177 mV (RF)
R51
390pF
C29
1.5%
6.8pF
UMT1
Q22
1.43%
7pF
BFS505
Q21
4.2 V (RX)
0.79 V (RX)
390pF
C21
1.5%
6.8pF
L32
C31
1%
15pF
9.85nH
2%
C9
C38
1.1%
9.1pF
R22
5.6K
C32
1.6%
6.2pF
C41
13pF
1.0%
10pF
SH40
SHIELD
1
C28
C42
8.2pF
C37
1.43%
7pF
9.85nH
2%
L1
L40
27nH
560nH
L52
C12
1.2%
8.2pF
1
3
82pF
C51
C524
C35
27K
0.2pF
0.2pF
R23
RF BALUN
5
NC
4
6
3
2
1
C523
T41
C47
C5
0
C26
390pF
1.5K
11pF
1%
C10
1.1%
9.1pF
R24
C39
0.1uF
C99
R20
5.6K
8.2pF
C44
390pF
C36
1%
18pF
1.6%
6.2pF
C20
C34
0.5pF
NU
C46
CR41
IO1
1
2
IO2
IO3
3
IO4
4
C522
C25
1.5pF
6.7%
C6
L51
150nH
51
L2
2%
9.85nH
27nH
NC
2%
9.85nH
L41
NC
L33
C3
NU
C7
2
5
6
3
1
4
1.5pF
6.7%
C11
15pF
C4
9.85nH
2%
L34
NU
C8
0
L31
2%
9.85nH
9.85nH
2%
L3
C49
NU
R21
100
C521
R25
5.6K
5.6pF
T42
5
NC
4
6
3
2
1
IF BALUN
0
C48
L21
22nH
1K
R40
C45
13pF
1
C43
27pF
TP1
1
FE_5R
SHIELD
1
TP2
L55
SH1
CR1
1
3
2
18nH
C30
1%
20pF
13pF
1%
C1
8pF
1.25%
C27
1%
C33
C23
390pF
22pF
C2
RX_IN
IF_OUT
15pF
1%
RX_INJ
5R
Figure 12-16. UHF (438-470 MHz) Receiver Front End Schematic Diagram (8486348Z09-A)