Figure 12-40. Uhf (465-495 Mhz) Receiver Front End Schematic Diagram (8486634Z02-O) - Motorola CP150 Service Manual

12-54
FE_5R
5R
SH1
SH40
SHIELD SHIELD
1
1
C2
IF 1
RX_IN
1.1%
9.1pF
C1
L1
9.85nH
8pF
2%
1.25%

Figure 12-40. UHF (465-495 MHz) Receiver Front End Schematic Diagram (8486634Z02-O)

June, 2005
C523
6%
0.5pF
C3 C5 C8
C6
1.25% 1.3% 2.3%
4.3pF CR1
8pF 7.5pF 4.3pF
C4 C12 C7
2.3%
L2 L3
9.85nH
9.85nH
10pF 9.1pF
NU
2% 2%
1.0% 1.1%
C29 C31
C28 C32
1.6%
1.0% 1.6% 1.8%
10pF 6.2pF 5.6pF 6.2pF
C27 C30 C4 6
L32
L31
9.85nH 9.85nH
8.2pF 16pF NU
2% 2%
1.2% 1%
RX_IN J
UHF R3 Front End
R20 R21
91
5.6K
1 4
2 Q22 5
UMT1
C20
6 3
390pF
L55
R23
22nH
27K C99
0.1uF
R22
5.6K
C23
R24
1.2K
390pF
3
C9 C11 C21
0.79V 1
Q21
1.6%
1%
390pF
3 6.2pF 68pF BFS505
C10
R25
L21
5.6K
33nH
2.7pF
3.7%
1 2
C524
6%
0.5pF
C35 C38
C34 C37
C48
1.6% 1.2%
1.6% 2%
0
6.2pF 8.2pF
6.2pF 5.1pF
C33 C47 C36 C39
L33 L34
9.85nH 9.85nH
24pF 18pF
NU 2.7pF
2% 2%
1% 1% 3.7%
C42 C44
FE_RF_IN J
L40 L41
1.2% 1.1%
27nH 27nH
9.1pF
8.2pF
C41 C43
10pF 20pF
1%
1.0%
UHF (465-495 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486634Z02-O)
C26
390pF
C25
390pF
C521
4.2V
3.7%
2.7pF
C522
0.5pF
L52
560nH
R51
51
C51
L51
150nH
82pF
T41
4 3
2
C49
C14
6 1
NU
6.7%
RF BALUN
5
1.5pF
NC NC
1
IO1
3
IO3 IO4
T42
4 3
IO2
2
2
CR41
6 1
HSMS2829
IF BALUN
5
NC
C45 NC
R40
1K
15pF
1%
1
TP1
TP2
1
FE_IF_OUT
IF_OUT
C13
6.7%
1.5pF
4
6880309N62-C