cfmr am ceramic filters august 2005 1 ? 2005 toko america, inc. all rights reserved printed in usa cf-314-cfmr 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, specifcation 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. description ? low profle, compact, 2-element am if flter with high reliability. ? center frequency range: 450 to 470khz ? bandwidth at 6db: 4 to 10khz. features ? compact, low profle (height 7.6mm). ? high selectivity, suited for a wide range of applications ? low spurious response ? lead-free terminations applications ? am radio cassettes, stereo sets, telecommunications ? wireless data communication equipment standard filters selection guide type cfmr (cerasizer ? ) toko center bandwidth selectivity ripple insertion input/output part frequency (fo)* at 6db at fo9khz in pass band loss impedance number (khz) (khz) (db) (db) (db) (k ) ##ACFMR-455Z 4551.0 4.01.0 24.0 min. 1.0 max. 7.0 max. 1.0/1.5 ##acfmr-455al 4551.0 4.0 min. 18.0 min. 1.0 max. 6.0 max. 1.0/1.5 ##acfmr-455bl 4551.0 6.0 min. 16.0 min. 1.0 max. 6.0 max. 1.0/2.0 ##acfmr-455cl 4551.0 8.0 min. 12.0 min. 2.0 max. 6.0 max. 2.0/2.0 ##acfmr-455dl 4551.0 10.0 min. 9.0 min. 2.0 max. 6.0 max. 2.0/2.0 * center frequencies 450khz, 455khz, 459khz, 460khz, 468khz available. center frequency tolerance available to 0.5khz. 1. c includes test circuit capacitance. 2. l 1 2.7mh, l 2 1.0mh 3. during testing, when matching coils are used at input/output sides, connect l 1 and l 2 (dummy) 4. r 1 , r 2 : input-output impedance cs: stray capacitance (less than 50pf, including ev) unit: mm test circuit test conditions
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