249.6 mhz saw filter 5 mhz bandwidth part number SF0250BA03189S idt ? ?? ? saw products ? ?? ? 324 clark street, worcester, ma 01606, usa ? ?? ? ph 1-508-852-5400 ? ?? ? fax 1-508-852-8456 www.idt.com dssf0250ba03189 s rev - 12-may-2008 ecn 36103 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 amp1 db/div phase5 deg/div delay50 ns/div center = 249.6 mhz, 6 mhz/div (75 khz incr)
249.6 mhz saw filter 5 mhz bandwidth part number SF0250BA03189S idt ? ?? ? saw products ? ?? ? 324 clark street, worcester, ma 01606, usa ? ?? ? ph 1-508-852-5400 ? ?? ? fax 1-508-852-8456 www.idt.com dssf0250ba03189 s rev - 12-may-2008 ecn 36103 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. computed as mean of the 3 db frequencies. 2. all db values are referenced to the insertion l oss value. 3. input ip3 is +37.5 dbm minimum measured with tw o 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 idt ? ?? ? saw products ? ?? ? 324 clark street, worcester, ma 01606, usa ? ?? ? ph 1-508-852-5400 ? ?? ? fax 1-508-852-8456 www.idt.com dssf0250ba03189 s rev - 12-may-2008 ecn 36103 page 3 of 3 package outline all specifications are believed to be accurate and reliable. however, mnc reserves the right to make changes without notice. ? 200 8 all rights reserved. iso 9001 registered package material: body: al 2 o 3 ceramic lid: kovar, ni plated terminations: au plating 1 fm min, over a 1.3-8.9 fm 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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