CFSKN G Series
FM CERAMIC FILTERS
Description
Dimensions
• 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
Unit: mm
Applications
• Especially suited for digital cordless telephones
and high grade stereo sets.
• MIDI audio systems and car stereo
• Digital telecommunications equipment
SKM1N
SKM2N
SKM3N SKM4N
SKM5N
Color Code Table
Test Circuit
Center
Frequency*
Color
Code
Rank
A
B
C
D
E
10.70±0.03MHZ
10.67±0.03MHZ
10.73±0.03MHZ
10.64±0.03MHZ
10.76±0.03MHZ
None
Blue
Orange
Black
White
Test Conditions
R1: 280Ω
* Standard center frequency: 10.7MHz
R2: 280Ω
N.A.: HP4194A or equivalent
(Input impedance less than 15pF)
* Applicable center frequencies: 10.3MHz — 11.5MHz
* Center frequency tolerance: Standard ±30kHz; ±25kHz
and ±20kHz also available
STANDARD FILTERS SELECTION GUIDE
TYPE CFSKN Flat Group Delay G Series
TOKO
Part
Number
Center
Frequency
(Fo)*
Bandwidth Bandwidth
Insertion
Loss
(dB)
Spurious
G.T.D.
Impedance
(In/Out)
(kΩ)
at 3dB
(kHz)
at 20dB
(kHz)
Response Bandwidth
(dB)
0.5μS (kHz)
#SK107M1N-AE-10G See Color Code Table 280±50
#SK107M2N-AE-20G See Color Code Table 230±50
#SK107M3N-AE-20G See Color Code Table 180±40
#SK107M4N-AE-20G See Color Code Table 150±40
#SK107M5N-AE-10G See Color Code Table 110±40
650 max.
600 max.
520 max.
400 max.
350 max.
6.0 max
6.0 max
7.0 max
10.0 max
10.0 max
30 min.
40 min.
40 min.
40 min.
30 min.
Fo±80 min.
Fo±60 min.
Fo±45 min.
Fo±35 min.
Fo±25 min.
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
1
CF-324-CFSKN/G
R-LOG0805A
© 2005 TOKO America, Inc.
All Rights Reserved
Printed in USA