saw bandpass filter 251401B part no. 251401B 1. features z if bandpass filter z high attenuation z single-ended operation z dip package z maximum storage temperature range : -40 ~ 85 z electrostatics sensitive device (esd) 2. package dimension 0.450.05 2.50.2 17.70.2 2.50.2 7.60.2 6.0max 5.5max 27.30.5 12.70.5 itf 05a001 251401B package : d2712 pin configuration 1 input 5 output 2, 4 ground 3, 6 case ground dimensions shown are nominal in millimeters base : fe(spcc), au plating over ni plated cap : cu & cr alloy, ni plated termination : kovar, au plated rev. date 2005-03-14 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm5007-cs01 1/5
saw bandpass filter 251401B 3. specifications fo = 140.0 mhz terminating source impedance : 50 and matching network terminating load impedance : 50 and matching network minimum typical maximum center frequency mhz 139.9 140.0 140.1 insertion loss db - 25.0 26.0 1db bandwidth mhz - 14.2 - 3db bandwidth mhz 14.3 14.5 - 10db bandwidth mhz - 15.08 15.12 40db bandwidth mhz - 16.0 16.2 amplitude ripple (fo +/- 6.875 mhz) db - 0.7 1.0 group delay variation (fo +/- 6.875 mhz) nsec - 50 100 absolute delay usec - 3.21 - ultimate rejection db 50 52 - temperature coefficient of frequency ppm/c - -23 - notes : 1) all specifications are based on the matching schematic shown below 2) all specifications are measured by agilent network an alyzer and full 2 port calibration at room temperature 3) all attenuation measurements are m easured relative to insertion loss part no. 251401B rev. date 2005-03-14 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm5007-cs01 2/5
saw bandpass filter 251401B part no. 251401B 4. matching schematic ( actual matching values may vary due to pcb layout and parasitics ) output 50 l4 l3 l2 input 50 l1 l1 = 47 nh, l2 = 47 nh l3 = 56 nh, l4 = 47 nh 5. marking configuration itf 1) 05a001 2) 251401B 3) 1) manufacturer name 2) lot number 3) part number rev. date 2005-03-14 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm5007-cs01 3/5
saw bandpass filter 251401B part no. 251401B 6. typical performance ( at +25 ) ch1 s21 log 10 db/ ref -25.02 db center 140 . 000 000 mhz span 40. 000 000 mhz cor 19 nov 2004 05:08:16 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 15. 899961 mhz cent : 139 . 995670 mhz q: 8. 8048 1_loss : -24 . 895 db ch1 s21 log 1 db/ ref -24.55 db cor ch2 s21 del 100 ns/ ref 3.204 us center 140 . 000 000 mhz span 17. 000 000 mhz cor smo 19 nov 2004 05:09:56 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 14. 522067 mhz cent : 140 . 006160 mhz q: 9. 6409 1_loss : -24 . 880 db 2 3 3: 3. 6748 ns 13. 750 000 mhz ref=2 ch2 markers mean : 3. 2172 us s. dev : 6. 7889 ns p-p : 38. 057 ns rev. date 2005-03-14 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm5007-cs01 4/5
saw bandpass filter 251401B part no. 251401B ch1 ch1 s21 log 10 db/ ref -25.47 db start . 010 000 mhz stop 450 . 000 000 mhz 19 nov 2004 05:11:34 1 2 3 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers 2: -71 . 570 db 140 . 000 mhz 3: -62 . 520 db 280 . 000 mhz rev. date 2005-03-14 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm5007-cs01 5/5 s21 log 1 db/ ref -24.55 db center 140 . 000 000 mhz span 17. 000 000 mhz cor ch2 log 1 db/ ref -25.08 db cor s21 19 nov 2004 05:09:42 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 14. 212594 mhz cent : 140 . 010092 mhz q: 9. 8511 1_loss : -24 . 892 db 2 3 3: . 17410 db 13. 750 000 mhz ref=2 ch2 markers mean : -24 . 872 db s. dev : . 12020 db p-p : . 68290 db ch1 s11 swr 1 / ref 1.842 center 140 . 000 000 mhz span 40. 000 000 mhz cor ch2 swr 1 / ref 1.892 cor s22 19 nov 2004 05:10:57 1 1: 1. 8411 140 . 000 000 mhz 2 2: 1. 8899 140 . 000 000 mhz ch1 s11 1 u fs cor ch2 s22 1 u fs center 140 . 000 000 mhz span 40. 000 000 mhz cor 19 nov 2004 05:11:03 1 1: 55. 508 -32 . 264 35. 235 pf 140 . 000 000 mhz 2 2: 33. 375 -20 . 645 55. 066 pf 140 . 000 000 mhz
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