
CDF
FM CERAMIC DISCRIMINATOR
August 2005
 2005 TOKO America, Inc.
All Rights Reserved  
Printed in USA
1
CF-329-CDF
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
TYPE CDF Discriminators
TOKO                      Center                                                                Demodulated    Demodulated               
           Part                     Frequency       (Rank Color     Demodulated        Distortion                3dB              Applicable
          Number*                       (Fo)                 Code)               Output
        Factor             Bandwidth               IC*
#CDF107F-AE-022  A:10.70MHz±30kHZ    (None)            60mV min.           1.0% max.         220kHz min.         TA2111F
                                B:10.67MHz±30kHZ    (Blue)
                                   C:10.73MHz±30kHZ    (Orange)                  
                                D:10.64MHz±30kHZ    (Black)
                                E:10.76MHz±30kHZ    (White)
* Ceramic discriminators are classified by exclusive IC numbers.  Please ask for TOKO Part Number.
STANDARD DISCRIMINATORS SELECTION GUIDE 
Description
 May be used in combination with IF step filters 
   to remove need for adjustment.
Features
 Compact and low profile (ideal for slimline sets)
 Low temperature coefficient for low dispersion and 
  stable characteristics
 Independent terminal structure
 Lead-free terminations  
Applications
 Ideal for small sets, general purpose radios, 
   and headphone stereos.
 Wireless data communication equipment 
Center Frequency:
Fo is defined as the Carrier Frequency at the D.C. output.  
Test Conditions:
MOD: 1kHz, DEV: 22.5kHz, INPUT: 80dB
μ
Unit: mm
CDF107F