saw bandpass filter 251904B part no. 251904B 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 7.60.2 2.50.2 25.40.2 2.50.2 0.450.05 6.0max 5.5max 35.10.5 12.80.5 itf 04a001 251904B package : d3512 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 2004-07-09 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm4016-cs02 1/5
saw bandpass filter 251904B part no. 251904B 3. specifications fo = 120.0 mhz terminating source impedance : 50 and matching network terminating load impedance : 50 and matching network minimum typical maximum center frequency mhz 119.9 120.0 120.1 insertion loss db - 29.5 31.0 1db bandwidth mhz - 18.87 - 3db bandwidth mhz 19.0 19.1 - 50db bandwidth mhz - 20.2 20.4 amplitude ripple (fo +/- 9.22 mhz) db - 0.7 1.2 group delay variation (fo +/- 9.22 mhz) nsec - 50 100 absolute delay usec - 4.04 - relative attenuation at 100.0 to 109.5 mhz db 50 52 - at 109.5 to 110.0 mhz db 25 30 - at 130.0 to 130.5 mhz db 25 30 - at 130.5 to 140.0 mhz 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 rev. date 2004-07-09 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm4016-cs02 2/5
saw bandpass filter 251904B part no. 251904B 4. matching schematic ( actual matching values may vary due to pcb layout and parasitics ) output 50 l4 l3 l2 input 50 l1 l1 = l4 = 47 nh l2 = l3 = 82 nh 5. marking configuration itf 1) 04a001 2) 251904B 3) 1) manufacturer name 2) lot number 3) part number rev. date 2004-07-09 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm4016-cs02 3/5
saw bandpass filter 251904B part no. 251904B rev. date 2004-07-09 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm4016-cs02 4/5 ch1 s21 log 1 db/ ref -28.63 db cor ch2 s21 del 100 ns/ ref 4.024 us center 120 . 000 000 mhz span 23. 000 000 mhz cor smo 28 jun 2004 13:50:26 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 19. 079410 mhz cent : 119 . 993657 mhz q: 6. 2892 1_loss : -28 . 619 db 2 3 3: -15 . 991 ns 18. 440 000 mhz ref=2 ch2 markers mean : 4. 0478 us s. dev : 7. 5495 ns p-p : 37. 682 ns ch1 s21 log 10 db/ ref -29.8 db center 120 . 000 000 mhz span 50. 000 000 mhz cor 9 jul 2004 08:54:56 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 20. 167055 mhz cent : 119 . 990766 mhz q: 5. 9498 1_loss : -29 . 826 db 6. typical performance ( at +25 )
saw bandpass filter 251904B part no. 251904B ch1 s21 log 1 db/ ref -28.53 db center 120 . 000 000 mhz span 23. 000 000 mhz ch1 s21 log 10 db/ ref -28.59 db start . 010 000 mhz stop 400 . 000 000 mhz * 28 jun 2004 13:54:55 1 1: -28 . 432 db 120 . 000 000 mhz rev. date 2004-07-09 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm4016-cs02 5/5 cor ch2 log 1 db/ ref -28.91 db cor s21 29 jun 2004 15:36:11 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 18. 863426 mhz cent : 119 . 991153 mhz q: 6. 3610 1_loss : -28 . 590 db 2 3 3: . 13660 db 18. 440 000 mhz ref=2 ch2 markers mean : -28 . 687 db s. dev : . 12330 db p-p : . 52510 db ch1 s11 swr 2 / ref 1.958 center 120 . 000 000 mhz span 50. 000 000 mhz cor ch2 swr 2 / ref 2.642 cor s22 28 jun 2004 13:53:50 1 1: 1. 9578 120 . 000 000 mhz 2 2: 2. 6449 120 . 000 000 mhz ch1 s11 1 u fs center 120 . 000 000 mhz span 50. 000 000 mhz cor ch2 s22 1 u fs cor 29 jun 2004 15:54:22 1 1: 31. 624 -28 . 196 47. 038 pf 120 . 000 000 mhz 2 2: 32. 096 -29 . 137 45. 520 pf 120 . 000 000 mhz
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