TOKO CFSKN X User Manual

CFSKN X Series

FM CERAMIC FILTERS

Description

• Low insertion loss design for lower gain
dispersion in transceiver applications.

Features

• Compact and low prole (ideal for slimline sets)

• Low temperature coefcient and dispersion for
reliable response

• High selectivity

• Low spurious response

• Independent terminal structure

• Lead-free terminations

Applications

• Cordless telephones, tuner packs, radio cassettes,
car radios, compact portable radios

• Wireless data communication equipment

Color Code Table

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

* Standard center frequency: 10.7MHz
* Applicable center frequencies: 10.3MHz — 11.5MHz
* Center frequency tolerance: Standard ±30kHz; ±25kHz
and ±20kHz also available

Dimensions

Unit: mm

SKM0N SKM1N SKM2N SKM3N SKM4N SKM5N

Test Circuit

Test Conditions

R1: 280Ω
R2: 280Ω
N.A.: HP4194A or equivalent
(Input impedance less than 15pF)

STANDARD FILTERS SELECTION GUIDE

TYPE CFSKN Low Loss X Series

TOKO Center Bandwidth Bandwidth Insertion Spurious Impedance
Part Frequency at 3dB at 20dB Loss Response (In/Out)

Number (Fo)* (kHz) (kHz) (dB) (dB) (Ω)

#SK107M0N-AE-10X See Color Code Table 330±50 680 max. 2.5±2.0 30 min. 330/330
#SK107M1N-AE-10X See Color Code Table 280±50 650 max. 2.5±2.0 30 min. 330/330
#SK107M2N-AE-20X See Color Code Table 230±50 600 max. 3.0±2.0 40 min. 330/330
#SK107M3N-AE-20X See Color Code Table 180±40 520 max. 3.5±1.5 40 min. 330/330
#SK107M4N-AE-20X See Color Code Table 150±40 400 max. 5.5±2.0 40 min. 330/330

#SK107M5N-AE-10X See Color Code Table 110±30 350 max. 6.0±2.0 30 min. 330/330

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, specication 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
Printed in USA

CF-323-CFSKN/X

R-LOG0805A