249.6 mhz saw filter 5 mhz bandwidth part number SF0250BA03189S spectrum microwave 400 nickerson road, marlbo rough, ma 01752, usa ? phone 1-508-251-6400 ? fax 1-508-251-6401 www.spectrummicrowave.com dsSF0250BA03189S rev a 19-mar-2010 ecn 36650 page 1 of 3 description ? 249.6 mhz saw bandpass filter with 5 mhz bandwidth. ? 9.1 x 4.8 mm ceramic lcc package. ? rohs compliant. typical performance s11 (219.6-279.6 mhz) s22 (219.6-279.6 mhz) amp 10 db/div amp 1 db/div phase 5 deg/div delay 50 ns/div center = 249.6 mhz, 6 mhz/div (75 khz incr)
249.6 mhz saw filter 5 mhz bandwidth part number SF0250BA03189S spectrum microwave 400 nickerson road, marlbo rough, ma 01752, usa ? phone 1-508-251-6400 ? fax 1-508-251-6401 www.spectrummicrowave.com dsSF0250BA03189S rev a 19-mar-2010 ecn 36650 page 2 of 3 specification parameter min typ max units center frequency, f c 1 - 249.6 - mhz insertion loss - 8.6 12 db amplitude variation (247.1 to 252.1 mhz) - 0.8 1.1 db p-p phase linearity (247.1 to 252.1 mhz) - 0.7 4 deg rms absolute delay - 635 - ns lower 1db band edge 2 - 246.8 247.1 mhz upper 1db band edge 2 252.1 252.6 - mhz relative attenuation (149.6 to 239.6 mhz) 2 47 50 - db relative attenuation (239.6 to 240.6 mhz) 2 40 52 - db relative attenuation (240.6 to 242 mhz) 2 23 48 - db relative attenuation (242 to 244.6 mhz) 2 13 25 - db relative attenuation (254.6 to 257 mhz) 2 13 18 - db relative attenuation (257 to 258.6 mhz) 2 23 42 - db relative attenuation (258.6 to 259.6 mhz) 2 40 47 - db relative attenuation (259.6 to 349.6 mhz) 2 43 50 - db source and load impedance 50 ohms temperature coefficient of frequency -18 ppm/ ? c ambient temperature - 25 - ? c notes: 1. reference frequency. comput ed as mean of the 3 db frequencies. 2. all db values are referenced to the insertion loss value. 3. input ip3 is +37.5 dbm minimu m measured with two tones at 249.5 and 249.7 mhz, -3.5 dbm each tone. maximum ratings parameter min max units storage temperature range -40 85 ? c operating temperature range -20 85 ? c input power level - 10 dbm matching circuit ls1 = 36 nh ls2 = 56 nh cp1 = 27 pf cp2 = 22 pf notes: ? recommend 2% or better tolerance matching components. typical inductor q=40. ? optimum values may change depending on board layout. values shown are intended as a guide only. input 50 ? single ended output 50 ? single ended 10 5 1 6 gnd gnd
249.6 mhz saw filter 5 mhz bandwidth part number SF0250BA03189S spectrum microwave 400 nickerson road, marlbo rough, ma 01752, usa ? phone 1-508-251-6400 ? fax 1-508-251-6401 www.spectrummicrowave.com dsSF0250BA03189S rev a 19-mar-2010 ecn 36650 page 3 of 3 package outline all specifications are believed to be accurate and reliable. howe ver, spectrum microwave reserves the right to make changes wit hout notice. ? 2010 all ri g hts reserved. iso 9001 registered package material: body: al 2 o 3 ceramic lid: kovar, ni plated terminations: au plating 1 m min, over a 1.3-8.9 m ni plating units: mm tolerances are typically 0.15 mm except where indicated. pad configuration: input: 10 output: 5 ground: all other pads
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