140.0 mhz saw filter part number 250308B tel: 82-32-621-1213 2010. 04. 05 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 2.8 mhz single ended operation dip package 2. electrical specifications source and load impedance = 50 room temperature : +25 minimum typical maximum center frequency (fo) mhz 140.0 insertion loss db 23.5 25.5 1db bandwidth mhz 2.8 2.84 3db bandwidth mhz 3.0 40db bandwidth mhz 3.63 3.72 amplitude ripple (fo 1.25 mhz) db 0.55 1.0 group delay variation (fo 1.25 mhz) nsec 200 350 absolute delay usec 3.81 ultimate rejection(fo+/6.4mhz) db 55 60 relative attenuation fo+/ 1.8mhz db 30 35 fo+/ 2.0mhz db 45 55 fo+/ 2.4mhz db 50 57 temperature coefficient of frequency ppm/ 2 0.03 d3512 package dimension matching schematic pin configuration input 1 ground 2,4 7.6 0.2 2.50.2 25.40.2 2.50.2 0.450.05 6.0m ax 5.5m ax 35.10.5 12.8 0.5 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 1 5 43 pf 47 pf 82 nh 68 nh input 50 output 50 itf 10 itf 10 itf 10 itf 10 a001 a001 a001 a001 250308 250308 250308 250308 b bb b 140 140 140 140 - -- - 2.8 2.8 2.8 2.8 m mm m
140.0 mhz saw filter part number 250308B tel: 82-32-621-1213 2010. 04. 05 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 3db bandwidth & group delay 40db bandwidth attenuation wideband properties swr(s11 & s22) ch1 s11 swr 1 / ref 1 center 140 . 000 000 mhz span 15. 000 000 mhz cor ch3 s22 swr 1 / ref 1 cor 6 oct 2009 11:56:39 1 1: 1. 3616 140 . 000 000 mhz 2 2: 2. 2137 140 . 000 000 mhz ch1 s21 log 10 db/ ref -23 db start . 010 000 mhz stop 500 . 000 000 mhz 6 oct 2009 11:58:12 1 2 3 4 5 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers 2:-54 . 255 db 43. 8000 mhz 3:-53 . 225 db 88. 3000 mhz 4:-59 . 004 db 140. 000 mhz 5:-59 . 790 db 280. 000 mhz ch1 s21 log 10 db/ ref -23 db center 140 . 000 000 mhz span 15. 000 000 mhz * cor ch3 s21 log 10 db/ ref -23 db * c2 6 oct 2009 11:55:02 1 2 3 4 5 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers 2:-37 . 228 db -1 . 80000 mhz 3:-33 . 904 db 1. 80000 mhz 4:-64 . 385 db -2 . 00000 mhz 5:-55 . 752 db 2. 00000 mhz 1 2 3 4 5 1: 0. 0000 db 0. 000 000 mhz ref=1 ch3 markers 2:-59 . 660 db -2 . 40000 mhz 3:-56 . 740 db 2. 40000 mhz 4:-62 . 500 db -6 . 40000 mhz 5:-64 . 593 db 6. 40000 mhz ch1 s21 log 10 db/ ref -23 db center 140 . 000 000 mhz span 15. 000 000 mhz * cor 6 oct 2009 11:53:56 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 3. 635122 mhz cent : 140. 008670 mhz q: 38. 516 1_loss : -23 . 230 db ch2 s21 log 1 db/ ref -23 db cor ch4 s21 del 500 ns/ ref 4.21 us start 138 . 250 000 mhz stop 141 . 750 000 mhz cor smo 6 oct 2009 11:55:34 2 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch2 markers bw: 2. 998801 mhz cent : 140. 011855 mhz q: 46. 689 1_loss : -23 . 158 db 4 2 3 3: 29. 241 ns 2. 500 000 mhz ref=2 ch4 markers mean: 3. 8126 us s. dev : 42. 143 ns p-p : 203. 38 ns ch2 s21 log 1 db/ ref -23 db start 138 . 250 000 mhz stop 141 . 750 000 mhz cor ch4 s21 log 1 db/ ref -23 db cor 6 oct 2009 11:56:02 2 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch2 markers bw: 2. 841917 mhz cent : 140. 018410 mhz q: 49. 269 1_loss : -23 . 158 db 4 2 3 3: . 41760 db 2. 500 000 mhz ref=2 ch4 markers mean: -23 . 095 db s. dev : . 10700 db p-p : . 53170 db
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