CFMA Datasheet, PDF (1/1 Pages) TOKO, Inc – AM CERAMIC FILTERS WITH MATCHING COIL

Description
• AM IF filters combining matching coil with
CFM2 type in resin case
• Center frequency range: 450 — 470kHz
• Bandwidth at 6dB: 2 — 11kHz
Features
• Can be preset if required
• High selectivity, suited to a wide range of applications
• Low temperature coefficient
• Low spurious response
• Lead-free terminations
Applications
• AM radio-cassettes, AM stereo application sets
• Wireless data communication equipment
Test Circuit
CFMA
AM CERAMIC FILTERS WITH MATCHING COIL
Dimensions
Typical Characteristics
Frequency Response
CFMA-027
Unit: mm
Frequency (kHz)
STANDARD FILTERS SELECTION GUIDE
TYPE CFMA (CERASIZER^®/Triple-tuned)
TOKO
Part
Number
##CFMA-027
##CFMA-003
##CFMA-050
##CFMA-012
##CFMA-008
##PCFMA-221
Center
Frequency
(kHz)
450±1.5
455±2.5
459±1.5
460±2.5
468±2.5
450±1.0
Bandwidth
at 6dB
(kHz)
5.0 min.
5.0 min.
5.0 min.
5.0 min.
5.0 min.
9.5 min.
Selectivity
at Fo±9KHz
(dB)
25.0 min.
25.0 min.
25.0 min.
25.0 min.
25.0 min.
17.0 min.
Ripple
in Pass Band
(dB)
1.0 max.
1.0 max.
1.0 max.
1.5 max.
1.0 max.
0.7 max.
Input Level
for 0.6mV
Output (dB)
Note
78.5±3.0
78.5±3.0
78.5±3.0
78.5±3.0
78.5±3.0
87.0±3.0
For AM stereo
application
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: [phone] Fax: [phone] Web: http://www.tokoam.com
August 2005
1
© 2005 TOKO America, Inc.
All Rights Reserved
CF-319-CFMA
R-LOG0805A
Printed in USA