125.0 mhz saw filter part number 251855B tel: 82-32-621-1213 2011. 11. 04 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 fax: 82-32-621-1218 http://www.itf.co.kr sales@itf.co.kr rev 1.0 1. features typical 1db bandwidth of 17.8 mhz low-loss filter single ended operation surface mounted package (smd) 2. electrical specifications source and load impedance = 508 operating temperature : -30 ~ +80 minimum typical maximum center frequency (fo) mhz - 125.0 - insertion loss db - 11.0 13.5 1db bandwidth mhz 17.3 17.85 - 3db bandwidth mhz - 18.9 - 40db bandwidth mhz - 22.7 23.2 amplitude ripple (fo 7.5 mhz) db - 0.4 1.0 group delay variation (fo 7.5 mhz) nsec - 40 80 absolute delay usec - 0.85 0.9 ultimate rejection db 40 45 - temperature coefficient of frequency ppm/ - -86 - room temperature : +25 minimum typical maximum insertion loss db - 11.0 13.0 amplitude ripple (fo 8.1 mhz) db - 0.4 1.0 group delay variation (fo 8.1 mhz) nsec - 40 80 s1365 package dimension matching schematic l2 input 50 c1 l1 l3 output 50 pin configuration input 11 ground 6, 12 12 11 10 9 8 7 65 4 3 2 1 0.800.1 1.500.1 2.540.1 7.620.1 2.540.1 1.610.2 6.500.2 13.300.2 1 2 3 4 10 9 8 7 5 6 11 12 dimensions shown are nominal in millimeters body : al 2 o 3 lid : kovar, ni plated termination : au plating 0.3 ~ 1.0um, over a 1.27 ~ 8.89um ni plating output 5 others ground 39nh 15nh itf 11a001 251855B . 12 5 - 17. 8 m 11 5 8.2nh 7 5 pf
125.0 mhz saw filter part number 251855B tel: 82-32-621-1213 2011. 11. 04 i t f co., ltd. 102-901, bucheon technopark 364, samjeong-dong, ojeong-gu, bucheon-city, gyounggi-do, korea 421-809 fax: 82-32-621-1218 http://www.itf.co.kr sales@itf.co.kr rev 1.0 3. typical performance ( at +25 ) 1db bandwidth & ripple 3db bandwidth & group delay 40db bandwidth wide band properties smith chart(s11 & s22) swr(s11 & s22) ch1 s11 swr 10 / ref 0 center125. 000 000 mhz span 70. 000 000 mhz cor prm ch3 s22 swr 10 / ref 0 31 oct 2011 16:34:11 1 1: 1. 7916 125. 000 000 mhz 2 2: 2. 1821 125. 000 000 mhz ch1 s11 1 u fs center125. 000 000 mhz span 70. 000 000 mhz cor prm ch3 s22 1 u fs 31 oct 2011 16:33:47 1 1: 28. 404 -5 . 4658 232. 95 pf 125. 000 000 mhz 2 2: 28. 375 21. 124 26. 896 nh 125. 000 000 mhz ch1 s21 log 10 db/ ref -10.8 db start . 010 000 mhz stop 500. 000 000 mhz prm 31 oct 2011 16:35:14 1 2 3 4 5 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1markers 2:-45 . 070 db 106. 500 mhz 3:-51 . 405 db 125. 000 mhz 4:-52 . 718 db 142. 100 mhz 5:-59 . 710 db 250. 000 mhz ch1 s21 log 10 db/ ref -10.8 db center125. 000 000 mhz span 70. 000 000 mhz cor prm 31 oct 2011 16:32:50 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1markers bw: 22. 395100 mhz cent : 125. 145680 mhz q: 5. 5881 1_loss : -10 . 789 db ch2 s21 log 1 db/ ref -10.8 db center125. 000 000 mhz span 22. 000 000 mhz cor prm ch4 s21 del 100 ns/ ref 823 ns smo 31 oct 2011 16:33:14 2 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch2markers bw: 18. 885864 mhz cent : 124. 924422 mhz q: 6. 6147 1_loss : -10 . 874 db 4 2 3 3:-23 . 815 ns 16. 200 000 mhz ref=2 ch4markers mean: 850. 81 ns s. dev : 6. 4708 ns p-p : 35. 823 ns ch2 s21 log 1 db/ ref -10.8 db center125. 000 000 mhz span 22. 000 000 mhz cor prm ch4 s21 log 1 db/ ref -10.8 db 31 oct 2011 16:33:27 2 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch2markers bw: 17. 893703 mhz cent : 124. 840415 mhz q: 6. 9768 1_loss : -10 . 867 db 4 2 3 3:- . 14360 db 16. 200 000 mhz ref=2 ch4markers mean:-10 . 915 db s. dev : . 08000 db p-p : . 33880 db
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