145.0 mhz saw filter part number 251925B tel: 82-32-621-1213 2013. 03. 27 i t f co., ltd. 102901, bucheon technopark 364, samjeongdong, ojeonggu, bucheoncity, gyounggido, korea 421809 fax: 82-32-621-1218 http://www.itf.co.kr sales@itf.co.kr rev 1.0 1. features typical 1db bandwidth of 19.3 mhz high attenuation single ended operation dual inline package (dip) 2. electrical specifications source and load impedance = 50 room temperature : +25 minimum typical maximum center frequency (fo) mhz 145.0 insertion loss db 26.5 28.0 1 db bandwidth mhz 19.15 19.36 3db bandwidth mhz 19.68 20db bandwidth mhz 20.6 20.65 40db bandwidth mhz 21.05 amplitude ripple (fo 9.4 mhz) db 1.1 1.5 group delay variation (fo 9.4 mhz) nsec 40 80 absolute delay usec 2.08 ultimate rejection db 40 45 maximum input power dbm 10 temperature coefficient of frequency ppm/ 72 d2012 package dimension matching schematic l1 = 27nh, l2 = 27nh, c1 = 36pf, c2 = 27pf pin configuration input 1 ground 2,4 12.70.5 20.30.5 5.5max 6.0max 7.60.2 2.50.2 0.450.05 12.70.2 2.50.2 dimensions shown are nominal in millimeters base : fe(spcc), au plating over ni plated cap : cu & cr alloy, ni plated termination : kovar, au plated output 5 others ground c2 c1 l2 l1 input 50 output 50 itf 13a001 251925B 140-19.3m 1 11 1 5 55 5
145.0 mhz saw filter part number 251925B tel: 82-32-621-1213 2013. 03. 27 i t f co., ltd. 102901, bucheon technopark 364, samjeongdong, ojeonggu, bucheoncity, gyounggido, korea 421809 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 40db bandwidth 3db bandwidth & group delay 20db bandwidth wideband properties swr(s11 & s22) ch1 s21 log 1 db/ ref -26.72 db center 145 . 000 000 mhz span 24. 000 000 mhz cor ch2 s21 log 1 db/ ref -26.98 db cor 26 mar 2012 03:44:45 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 19. 365416 mhz cent : 145 . 073145 mhz q: 7. 4914 1_loss : -26 . 566 db 2 3 3:- . 57970 db 18. 800 000 mhz ref=2 ch2 markers mean:-26 . 589 db s. dev : . 24960 db p-p : 1. 1227 db ch1 s21 log 1 db/ ref -26.72 db cor ch2 s21 del 50 ns/ ref 2.119 us center 145 . 000 000 mhz span 24. 000 000 mhz cor smo 26 mar 2012 03:45:01 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 19. 688645 mhz cent : 145 . 087998 mhz q: 7. 3691 1_loss : -26 . 552 db 2 3 3: 4. 5779 ns 18. 800 000 mhz ref=2 ch2 markers mean: 2. 0875 us s. dev : 6. 9789 ns p-p : 33. 061 ns ch1 s21 log 10 db/ ref -26.72 db center 145 . 000 000 mhz span 70. 000 000 mhz cor 26 mar 2012 03:40:22 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 21. 055785 mhz cent : 145 . 093891 mhz q: 6. 8909 1_loss : -26 . 684 db ch1 s21 log 10 db/ ref -26.72 db center 145 . 000 000 mhz span 70. 000 000 mhz cor 26 mar 2012 03:41:45 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 20. 602724 mhz cent : 145 . 094359 mhz q: 7. 0425 1_loss : -26 . 684 db ch1 s21 log 10 db/ ref -28.67 db start . 010 000 mhz stop 600 . 000 000 mhz 26 mar 2012 03:47:34 1 2 3 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers 2:-69 . 204 db 145. 000 mhz 3:-67 . 398 db 290. 000 mhz ch1 s11 swr 10 / ref 7.35 cor ch2 s22 swr 10 / ref 7.131 center 145 . 000 000 mhz span 70. 000 000 mhz cor 26 mar 2012 03:46:12 1 1: 7. 3523 145 . 000 000 mhz 2 2: 7. 1289 145 . 000 000 mhz
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