CFJW
AM CERAMIC FILTERS
Description
• Single element AM IF filter.
• Center frequency range: 450kHz, 455kHz
• Bandwidth at 3dB: 10±3kHz, 7±1.5kHz,
Dimensions
Features
• No adjustment required in the AM-IF circuit.
• Lead-free terminations
Applications
• Headphone stereos and pocket radios.
• Radio cassettes with CD, mini-components.
Unit: mm
Typical Characteristics
Frequency response
Test Circuit
R
1
=3.0kΩ
R
2
=3.0kΩ
C
S
=50pF
STANDARD FILTERS SELECTION GUIDE
TYPE CFJW (CERATUNE
®
)
TOKO
Part
Number
ACFJW-450A
ACFJW-450B
ACFJW-455A
ACFJW-455B
BCFJW-450A
BCFJW-455A
ACFJW-450BN1
BCFJW-455BN1
Center
Frequency (Fo)*
(kHz)
450±1.0
450±1.0
455±1.0
450±1.0
450±2.0
455±2.0
450±1.0
455±1.0
Bandwidth
at 3dB
(kHz)
10±3.0
10±3.0
10±3.0
10±3.0
10±3.0
10±3.0
7±1.5
7±1.5
Selectivity
at Fo±9kHz
(dB)
5.0 min.
5.0 min.
5.0 min.
5.0 min.
5.0 min.
5.0 min.
6.0 min.
6.0 min.
Selectivity
at Fo±9kHz
(dB)
3.0 min.
3.0 min.
3.0 min.
3.0 min.
3.0 min.
3.0 min.
5.0 min.
5.0 min.
Insertion
Loss
(dB)
5.0 max.
5.0 max.
5.0 max.
5.0 max.
5.0 max.
5.0 max.
5.0 max.
5.0 max.
Input/Output
Impedance
(kΩ)
3.0/3.0
3.0/3.0
3.0/3.0
3.0/3.0
3.0/3.0
3.0/3.0
3.0/3.0
3.0/3.0
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
© 2005 TOKO America, Inc.
All Rights Reserved
Printed in USA
CF-316-CFJW
R-LOG0805A
1
TOKO [ TOKO, INC ]
