ACFM2-450BL TOKO [TOKO, Inc], ACFM2-450BL Datasheet

ACFM2-450BL

Manufacturer Part Number

ACFM2-450BL

Description

AM CERAMIC FILTERS

Manufacturer

TOKO [TOKO, Inc]

Datasheet

1.ACFM2-450BL.pdf (1 pages)

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Description

• Compact 2/3 element AM IF filter with

• Center frequency range: 450 to 470kHz

• Bandwidth at 6dB: 4 to 12kHz. (4~8kHz: CFM3)

Features

• Compact, low profile

• High selectivity, suited to a wide range of applications

• Low temperature coefficient

• Low spurious response

• Lead-free terminations

Applications

• AM radio cassettes, stereo sets, telecommunications

• Wireless data communication equipment

Test Circuit

Test Conditions

STANDARD FILTERS SELECTION GUIDE

* Center frequencies 450kHz, 455kHz, 459kHz, 460kHz, 468kHz available. Center frequency tolerance available to ±0.5kHz.

August 2005

Printed in USA

TYPE CFM2/CFM3 (CERASIZER

##AHCFM2-450EL

##AHCFM2-450Z

##AHCFM2-450AL

##AHCFM2-450BL

##AHCFM2-450CL

##AHCFM2-450DL

unique structure for high reliability.

1. C includes test circuit capacitance. (50pF without L

3. During testing, when matching coils are used at input/output sides,

4. R

##ACFM3-450AL

##ACFM2-450BL

##ACFM2-450CL

CFM2

CFM3

•

connect L

Number

, R

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

Part

Cs: Stray capacitance

(less than 50pF, including EV)

2.7mH (CFM2), 1.35mH (CHM3)

1.0mH

: Input-output impedance

and L

Frequency (Fo)*

(dummy)

450±1.0

Center

(kHz)

Bandwidth

10.0 min.

12.0 min.

4.0 min.

6.0 min.

8.0 min.

4.0 min.

5.5 min.

8.0 min.

4.0±1.0

at 6dB

(kHz)

)

TOKO America, Inc.

1250 Feehanville Drive, Mount Prospect, Illinois 60056

Tel: (847) 297-0070 Fax: (847) 699-7864 Web:

, 62pF with L

CF-313-CFM2/3

at Fo±9kHz

R-LOG0805A

Selectivity

24.0 min.

18.0 min.

16.0 min.

12.0 min.

28.0 min.

24.0 min.

20.0 min.

9.0 min.

6.0 min.

(dB)

Dimensions

)

in Pass Band

1.0 max.

2.0 max.

Ripple

(dB)

Insertion

7.0 max.

6.0 max.

Loss

(dB)

AM CERAMIC FILTERS

CFM2/CFM3

http://www.tokoam.com

Input/Output

Impedance

1.0/1.5

1.5/2.0

2.0/2.0

2.5/2.5

3.0/3.0

(kΩ)

Unit: mm

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