鈥?/div>
L 1.0mH
2
3. During testing, when matching coils are used at input/output sides,
connect L
1
and L
2
(dummy)
4. R
1
, R
2
: Input-output impedance
Cs: Stray capacitance
(less than 50pF, including EV)
STANDARD FILTERS SELECTION GUIDE
TYPE CFM2/CFM3 (CERASIZER
廬
)
TOKO
Center
Part
Frequency (Fo)*
Number
(kHz)
CFM2
##AHCFM2-450Z
450鹵1.0
##AHCFM2-450AL
450鹵1.0
##AHCFM2-450BL
450鹵1.0
##AHCFM2-450CL
450鹵1.0
##AHCFM2-450DL
450鹵1.0
##AHCFM2-450EL
450鹵1.0
CFM3
##ACFM3-450AL
##ACFM2-450BL
##ACFM2-450CL
450鹵1.0
450鹵1.0
450鹵1.0
Bandwidth
at 6dB
(kHz)
4.0鹵1.0
4.0 min.
6.0 min.
8.0 min.
10.0 min.
12.0 min.
4.0 min.
5.5 min.
8.0 min.
Selectivity
at Fo鹵9kHz
(dB)
24.0 min.
18.0 min.
16.0 min.
12.0 min.
9.0 min.
6.0 min.
28.0 min.
24.0 min.
20.0 min.
Ripple
in Pass Band
(dB)
1.0 max.
1.0 max.
1.0 max.
2.0 max.
2.0 max.
2.0 max.
2.0 max.
2.0 max.
2.0 max.
Insertion
Loss
(dB)
7.0 max.
6.0 max.
6.0 max.
6.0 max.
6.0 max.
6.0 max.
6.0 max.
6.0 max.
6.0 max.
Input/Output
Impedance
(k惟)
1.0/1.5
1.0/1.5
1.5/2.0
2.0/2.0
2.0/2.0
2.5/2.5
3.0/3.0
3.0/3.0
3.0/3.0
* Center frequencies 450kHz, 455kHz, 459kHz, 460kHz, 468kHz available. Center frequency tolerance available to 鹵0.5kHz.
The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture
of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or
other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.
TOKO America, Inc.
1250 Feehanville Drive, Mount Prospect, Illinois 60056
Tel: (847) 297-0070 Fax: (847) 699-7864 Web: http://www.tokoam.com
August 2005
漏 2005 TOKO America, Inc.
All Rights Reserved
Printed in USA
CF-313-CFM2/3
R-LOG0805A
1
1
