page 1 ? 2008, kr electronics, inc. ch1 s31 log 1 db/ ref -3 db cor ch3 s31 del 5 ns/ ref 65 ns center 140 . 000 000 mhz span 20 . 000 000 mhz cor smo 4 jun 2008 13:36:58 ch2 s31 log 10 db/ ref 0 db center 140 . 000 000 mhz span 200 . 000 000 mhz cor 4 jun 2008 13:38:28 kr electronics kr 2838-20 is a 140 mhz group dela y equalized bandpass filter. the filter has a passband from 130 mhz to 150 mhz. other passband frequencies are available. please consult the factory. general description kr electronics, inc. features ? 140 mhz center frequency ? sharp transition to stopband ? group delay equalized ? 50 ? source and load typical performance www.krfilters.com passband amplitude & group delay (1 db/div and 5 nsec/div) kr electronics, inc. 91 avenel street avenel, nj 07001 www.krfilters.com sales@krfilters.com (732) 636-1900 (732) 636-1982 web email phone fax overall response (10 db/div)
page 2 ? 2008, kr electronics, inc. parameter specification filter type bandpass passband (< 2 db) 130 mhz to 150 mhz passband ripple < 1 db passband group delay ripple 132 mhz to 148 mhz < 6 nsec attenuation at 121 mhz & 159 mhz > 40 db attenuation at 104 mhz & 176 > 55 db source and load 50 ? insertion loss < 5.5 db ( 4.5 db typical ) kr electronics 2838-20 kr electronics, inc. physical dimensions specifications www.krfilters.com kr electronics, inc. 91 avenel street avenel, nj 07001 www.krfilters.com sales@krfilters.com (732) 636-1900 (732) 636-1982 web email phone fax notes: 1. surface mount package ? metal cover open frame 2. dimensions in inches 3. maximum reflow temperature is 230 c for 10 sec maximum. 4. if boards are cleaned after installation, units must be completely dried.
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