page 1 ? 2009, kr electronics, inc. 2897, rev 1, march 18, 2010 kr electronics kr 2897 is a 300 mhz bandpass filter. the 1 db bandwidth is 98 mhz minimum. the filter is group delay and amplitude equalized. other center frequenci es and bandwidths available. please consult the factory. general description kr electronics, inc. features ?? 300 mhz center frequency ?? 98 mhz min 1 db bandwidth ?? group delay/phase equalized ?? elliptic response ?? surface mount ?? 50 ? source and load typical performance 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 overall response (10 db/div)
page 2 ? 2009, kr electronics, inc. 2897, rev 1, march 18, 2010 passband amplitude & group delay (1 db/div & 5 nsec/div) kr electronics typical performance kr electronics, inc. 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 overall stopband to 1 ghz (10 db/div)
page 3 ? 2009, kr electronics, inc. 2897, rev 1, march 18, 2010 parameter specification filter type bandpass center frequency 300 mhz insertion loss < 5 db (3 db typical) minimum 1 db bandwidth 98 mhz min attenuation 225 mhz 50 db min attenuation 380 mhz 50 db min deviation from linear phase 252 mhz to 350 mhz 5 max (<5 p-p typical) source and load 50 ?? kr electronics 2897 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 209 c for 10 sec maximum. 4. if boards are cleaned after installation, units must be completely dried.
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