CFSKN G Series

FM CERAMIC FILTERS

August 2005

1

© 2005 TOKO America, Inc.

All Rights Reserved

Printed in USA

CF-324-CFSKN/G

R-LOG0805A

Dimensions

TOKO America, Inc.

1250 Feehanville Drive, Mount Prospect, Illinois 60056

Tel: (847) 297-0070 Fax: (847) 699-7864 Web: http://www.tokoam.com

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.

Test Circuit

Description

• High grade filters controlling 0.5μS bandwidth.

Features

• Compact and low profile (ideal for slimline sets)

• Low temperature coefficient and dispersion for

reliable response

• High selectivity for excellent spurious response control

• Low spurious response

• Independent terminal structure

• Lead-free terminations

Applications

• Especially suited for digital cordless telephones

and high grade stereo sets.

• MIDI audio systems and car stereo

• Digital telecommunications equipment

TYPE CFSKN Flat Group Delay G Series

TOKO

Center

Bandwidth Bandwidth

Insertion

Spurious

G.T.D.

Impedance

Part

Frequency

at 3dB

at 20dB

Loss

Response

Bandwidth

(In/Out)

Number

(Fo)*

(kHz)

(kHz)

(dB)

(dB)

0.5μS (kHz)

(kΩ)

#SK107M1N-AE-10G See Color Code Table 280±50

650 max.

6.0 max

30 min.

Fo±80 min.

3.0/3.0

#SK107M2N-AE-20G See Color Code Table 230±50

600 max.

6.0 max

40 min.

Fo±60 min.

3.0/3.0

#SK107M3N-AE-20G See Color Code Table 180±40

520 max.

7.0 max

40 min.

Fo±45 min.

3.0/3.0

#SK107M4N-AE-20G See Color Code Table 150±40

400 max.

10.0 max

40 min.

Fo±35 min.

3.0/3.0

#SK107M5N-AE-10G See Color Code Table 110±40

350 max.

10.0 max

30 min.

Fo±25 min.

3.0/3.0

STANDARD FILTERS SELECTION GUIDE

Center

Color

Rank

Frequency*

Code

A

10.70±0.03MHZ

None

B

10.67±0.03MHZ

Blue

C

10.73±0.03MHZ

Orange

D

10.64±0.03MHZ

Black

E

10.76±0.03MHZ

White

Test Conditions

R

280Ω

R

280Ω

N.A.: HP4194A or equivalent

(Input impedance less than 15pF)

Unit: mm

* Standard center frequency: 10.7MHz

* Applicable center frequencies: 10.3MHz — 11.5MHz

* Center frequency tolerance: Standard ±30kHz; ±25kHz

and ±20kHz also available

SKM1N

SKM2N

SKM3N SKM4N

SKM5N

Color Code Table