saw bandpass filter 251902B part no. 251902B 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 251902B 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 2004-06-21 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm4012-cs01 1/5
saw bandpass filter 251902B part no. 251902B 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 - 25.5 26.5 1db bandwidth mhz - 18.9 - 3db bandwidth mhz 19.0 19.1 - 40db bandwidth mhz - 20.1 20.4 amplitude ripple (fo +/- 9.22 mhz) db - 0.8 1.0 group delay variation (fo +/- 9.22 mhz) nsec - 50 150 absolute delay usec - 2.67 - ultimate rejection db 50 55 - relative attenuation at 110 mhz db 25 30 - at 130 mhz db 25 30 - temperature coefficient of frequency ppm/c - -72 - 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 2004-06-21 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm4012-cs01 2/5
saw bandpass filter 251902B part no. 251902B 4. matching schematic ( actual matching values may vary due to pcb layout and parasitics ) c2 c1 l2 l1 input 50 output 50 l1 = l2 = 39 nh c1 = c2 = 33 pf 5. marking configuration itf 1) 04a001 2) 251902B 3) 1) manufacturer name 2) lot number 3) part number rev. date 2004-06-21 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm4012-cs01 3/5
saw bandpass filter 251902B part no. 251902B ch1 s21 log 10 db/ ref -24.97 db center 120 . 000 000 mhz span 50. 000 000 mhz cor 14 may 2004 08:05:33 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 20. 103495 mhz cent : 119 . 993281 mhz q: 5. 9688 1_loss : -25 . 075 db 6. typical performance ( at +25 ) ch1 s21 log 1 db/ ref -24.56 db cor ch2 s21 del 100 ns/ ref 2.643 us center 120 . 000 000 mhz span 23. 000 000 mhz cor smo 14 may 2004 08:08:48 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 19. 106955 mhz cent : 119 . 997891 mhz q: 6. 2803 1_loss : -25 . 018 db 2 3 3: -20 . 780 ns 18. 440 000 mhz ref=2 ch2 markers mean : 2. 6782 us s. dev : 7. 9002 ns p-p : 43. 653 ns rev. date 2004-06-21 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm4012-cs01 4/5
saw bandpass filter 251902B part no. 251902B ch1 ch1 s21 log 10 db/ ref -24.64 db start . 010 000 mhz stop 400 . 000 000 mhz 14 may 2004 08:10:35 1 1: -24 . 770 db 120 . 000 000 mhz rev. date 2004-06-21 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 rev. nm4012-cs01 5/5 s21 log 1 db/ ref -24.56 db cor ch2 s21 log 1 db/ ref -25.11 db center 120 . 000 000 mhz span 23. 000 000 mhz cor 14 may 2004 08:08:30 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 18. 890896 mhz cent : 119 . 999019 mhz q: 6. 3522 1_loss : -25 . 029 db 2 3 3: . 12540 db 18. 440 000 mhz ref=2 ch2 markers mean : -24 . 966 db s. dev : . 12850 db p-p : . 75040 db ch1 s21 log 10 db/ ref -25.08 db center 120 . 000 000 mhz span 50. 000 000 mhz * cor hld 19 jun 2004 12:31:09 1 2 3 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers 2: -29 . 729 db -10 . 0000 mhz 3: -33 . 519 db 10. 0000 mhz ch1 s11 1 u fs center 120 . 000 000 mhz span 50. 000 000 mhz cor ch2 s22 1 u fs cor 14 may 2004 08:10:02 1 1: 9. 9590 3. 8149 5. 0597 nh 120 . 000 000 mhz 2 2: 7. 2681 -1 . 4839 893 . 80 pf 120 . 000 000 mhz
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