44 mhz saw filter 4.93 mhz bandwidth part number: SF0044BA01979T spectrum microwave 400 nickerson road, marlbo rough, ma 01752, usa ? phone 1-508-251-6400 ? fax 1-508-251-6401 www.spectrummicrowave.com dsSF0044BA01979T rev a 4-feb-2010 ecn 36650 page 1 of 3 description ? 44 mhz saw bandpass filter for vsb system m ? if applications. ? 35.1 x 20.6 mm dip package. ? rohs compliant. typical performance horizontal: frequency : 2 mhz/div vertical from top: relative magnitude : 10 db/div relative magnitude : 1 db/div group delay deviation : 50 ns/div
44 mhz saw filter 4.93 mhz bandwidth part number: SF0044BA01979T spectrum microwave 400 nickerson road, marlbo rough, ma 01752, usa ? phone 1-508-251-6400 ? fax 1-508-251-6401 www.spectrummicrowave.com dsSF0044BA01979T rev a 4-feb-2010 ecn 36650 page 2 of 3 specification parameter min typ max units center frequency (fo, nominal) 1 - 44 - mhz insertion loss( average passband level) - 27 29 db passband ripple 2 - 0.6 0.8 db p-p attenuation at 41.57 mhz - 1.5 2 db attenuation at 46.5 mhz - 0.5 2 db group delay response at: 45.75 mhz ( reference) - 0 - ns 41.57 mhz -446 -346 -246 ns 41.75 mhz -343 -293 -243 ns 41.85 mhz -299 -264 -229 ns 42.17 mhz -205 -170 -135 ns 42.75 mhz -45 -10 25 ns 43.0 to 46.5 mhz -35 0 35 ns rejection (20 to 40.15 mhz) 50 55 - db rejection ( 40.15 to 41.10 mhz) 45 48 - db rejection ( 41.10 to 41.25 mhz) 30 40 - db rejection ( 47.0 to 47.6 mhz) 45 50 - db rejection ( 47.6 to 60 mhz) 50 55 - db time domain spurious ( 3.5 -13 us after main signal) 50 57 - db delay at fo - 4.4 - us ambient temperature (tref) - 60 - o c source/load impedance - 50 - ? notes: 1. average of lower & upper 3 db frequencies. 2. measured over 41.75 to 46.45 mhz. 3. typical change of filter fre quency response with temperature is ? f = (t-t ref )*tc*fc, in ppm. maximum ratings parameter min typ max units storage temperature range -40 60 85 ? c temperature coefficient of frequency (tc) 3 - -94 - ppm/ ? c input power level - 0 10 dbm matching circuit note: external matching components are not required. input 50 ? single-ended output 50 ? single-ended gnd
44 mhz saw filter 4.93 mhz bandwidth part number: SF0044BA01979T spectrum microwave 400 nickerson road, marlbo rough, ma 01752, usa ? phone 1-508-251-6400 ? fax 1-508-251-6401 www.spectrummicrowave.com dsSF0044BA01979T rev a 4-feb-2010 ecn 36650 page 3 of 3 package outline iso 9001 registered all specifications are believed to be accurate and reliable. howe ver, spectrum microwave reserves the right to make changes wit hout notice. ? 2010 all rights reserved. units: mm tolerances are 0.15 mm except for the overall length and width, which are nominal values. pin configuration: input: 3 input return: 2 output: 15 output return: 14 ground: all other pins
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