CM5018
(Preliminary)
Low Power Narrowband FM IF
Figure 9. Simplified Application
Scan Control
to PLL
R7
V
= 4.0 V
CC
18 k
R9
100 k
1st IF 10.7 MHz
from Input
Front End
+
C12
4.7
R10
1.0 k
R8
4.7 k
VR2 (Squelch Control)
10 k
+
C13
10
R5
3.3 k
C11
0.1
C10
0.001
R1
51
R4
6.8 k
R3
3.3 k
C7
0.022
C9
0.001
R6
C8
0.047
470 k
C1
0.01
AF Output
to Audio
Power Amp.
VR1
22 k
16
15
14
13
12
11
6
10
9
CM5018
Quad Coil
1
2
3
4
5
7
8
10.245
MHz
C2
68 pF
C5
0.1
R2
20 k
FL1
C3
220 pF
C4
0.1
Units:
C6
0.1
R :
C :
Ω
µF
unless noted
FL1 – muRata Erie North America Type CFU455D2 or equivalent
Quadrature Coil – Toko America Type 7MC–8128Z or equivalent
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Tel:886-3-3214525
Email: server@ceramate.com.tw
Http: www.ceramate.com.tw
Fax:886-3-3521052
Page 5 of 6
Rev 0.2 Fev.13,2004
CERAMATE [ CERAMATE TECHNICAL ]
