saw bandpass filter 251911B part no. 251911B 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 2.50.2 12.70.2 0.450.05 2.50.2 7.60.2 6.0max 5.5max 20.30.5 12.70.5 itf 05a001 251911B package : d2012 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 2005-12-09 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm5022-cs03 1/5
saw bandpass filter 251911B part no. 251911B 3. specifications fo = 190.0 mhz terminating source impedance : 50 and matching network terminating load impedance : 50 and matching network minimum typical maximum center frequency mhz - 190.0 - insertion loss db - 26.0 28.0 1db bandwidth mhz - 19.6 - 3db bandwidth mhz 19.8 19.9 - 50db bandwidth mhz - 21.7 22.0 amplitude ripple (fo +/- 9.375 mhz) db - 0.7 1.0 group delay variation (fo +/- 9.375 mhz) nsec - 50 100 absolute delay usec - 2.9 - 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 i t f co., ltd. rev. date 2005-12-09 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm5022-cs03 2/5
saw bandpass filter 251911B part no. 251911B 4. matching schematic ( actual matching values may vary due to pcb layout and parasitics ) output 50 l4 l3 l2 input 50 l1 l1 = 27 nh, l2 = 27 nh l3 = 22 nh, l4 = 27 nh 5. marking configuration itf 1) 05a001 2) 251911B 3) 1) manufacturer name 2) lot number 3) part number rev. date 2005-12-09 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm5022-cs03 3/5
saw bandpass filter 251911B part no. 251911B ch1 s21 log 10 db/ ref -24.51 db center 190 . 000 000 mhz span 55. 000 000 mhz cor 9 dec 2005 14:24:06 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 21. 563647 mhz cent : 189 . 909005 mhz q: 8. 8069 1_loss : -24 . 630 db 6. typical performance ( at +25 ) ch1 s21 log 1 db/ ref -24.1 db cor ch2 s21 del 100 ns/ ref 2.875 us center 190 . 000 000 mhz span 23. 500 000 mhz cor smo 9 dec 2005 14:29:20 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 19. 884287 mhz cent : 189 . 928549 mhz q: 9. 5517 1_loss : -24 . 477 db 2 3 3: 3. 8131 ns 18. 750 000 mhz ref=2 ch2 markers mean : 2. 8845 us s. dev : 7. 8496 ns p-p : 47. 530 ns rev. date 2005-12-09 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm5022-cs03 4/5
saw bandpass filter 251911B part no. 251911B ch1 ch1 s21 log 10 db/ ref -24.91 db start . 010 000 mhz stop 600 . 000 000 mhz 9 dec 2005 14:31:33 1 2 3 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers 2: -60 . 496 db 190 . 000 mhz 3: -60 . 741 db 380 . 000 mhz rev. date 2005-12-09 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm5022-cs03 5/5 s21 log 1 db/ ref -24.1 db cor ch2 s2 1 log 1 db/ ref -23.66 db center 190 . 000 000 mhz span 23. 500 000 mhz cor 9 dec 2005 14:29:07 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 19. 539362 mhz cent : 189 . 927976 mhz q: 9. 7203 1_loss : -24 . 489 db 2 3 3: - . 05990 db 18. 750 000 mhz ref=2 ch2 markers mean : -24 . 476 db s. dev : . 12760 db p-p : . 67660 db ch1 s1 1 log 5 db/ ref -9.264 db center 190 . 000 000 mhz span 55. 000 000 mhz cor ch2 2 log 5 db/ ref -8.958 db cor s2 9 dec 2005 14:30:04 1 1: -9 . 2454 db 190 . 000 000 mhz 2 2: -8 . 9566 db 190 . 000 000 mhz ch1 s11 1 u fs center 190 . 000 000 mhz span 55. 000 000 mhz cor ch2 s22 1 u fs cor 9 dec 2005 14:30:22 1 1: 62. 445 -39 . 193 21. 372 pf 190 . 000 000 mhz 2 2: 46. 799 -36 . 910 22. 695 pf 190 . 000 000 mhz
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