140.0 mhz saw filter part number 251920B tel: 82-32-621-1213 2010. 09.14 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 19.79 mhz high attenuation single ended operation dual inline package (dip) 2. electrical specifications source and load impedance = 50 operating temperature : +25 minimum typical maximum center frequency (fo) mhz 140.0 insertion loss db 25.5 27.0 2db bandwidth mhz 19.75 19.79 19.85 25db bandwidth mhz 20.57 20.65 40db bandwidth mhz 20.75 amplitude ripple (fo 9.65 mhz) db 0.7 1.0 group delay variation (fo 9.65 mhz) nsec 60 150 absolute delay usec 2.92 ultimate rejection db 45 50 temperature coefficient of frequency ppm/ 84 d3512 package dimension matching schematic pin configuration input 1 ground 2,4 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 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 input 50 output 50 39 nh 1 5 itf 10a001 251920B 140-19.8m 39 nh 22pf 2 2 pf
140.0 mhz saw filter part number 251920B tel: 82-32-621-1213 2010. 09.14 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 2db bandwidth & group delay ch1 s21 log 1 db/ ref -25.46 db cor ch2 s21 log 1 db/ ref -25.81 db center 140. 000 000 mhz span 25. 000 000 mhz cor 12 aug 2010 11:46:33 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 19. 672160 mhz cent : 140. 061185 mhz q: 7. 1198 1_loss : -25 . 620 db 2 3 3: . 42430 db 19. 300 000 mhz ref=2 ch2 markers mean: -25 . 649 db s. dev : . 12030 db p-p : . 65140 db ch1 s21 log 1 db/ ref -25.46 db cor ch2 s21 del 100 ns/ ref 2.909 us center 140. 000 000 mhz span 25. 000 000 mhz cor smo 12 aug 2010 11:47:01 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 19. 794143 mhz cent : 140. 058689 mhz q: 7. 0758 1_loss : -25 . 620 db 2 3 3:-7 . 2023 ns 19. 300 000 mhz ref=2 ch2 markers mean: 2. 9237 us s. dev : 9. 6204 ns p-p : 55. 542 ns 25db bandwidth 40db bandwidth ch1 s21 log 10 db/ ref -25.68 db start 110. 000 000 mhz stop 170. 000 000 mhz cor 12 aug 2010 11:45:27 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 20. 576856 mhz cent : 140. 031512 mhz q: 6. 8053 1_loss : -25 . 705 db ch1 s21 log 10 db/ ref -25.68 db start 110. 000 000 mhz stop 170. 000 000 mhz cor 12 aug 2010 11:45:39 1 2 3 4 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers bw: 20. 746487 mhz cent : 140. 017601 mhz q: 6. 7490 1_loss : -25 . 705 db wide band properties swr(s11 & s22) ch1 s21 log 10 db/ ref -27.14 db start . 010 000 mhz stop 500. 000 000 mhz marker 1-1 0 hz 12 aug 2010 11:49:11 1 2 3 1: 0. 0000 db 0. 000 000 mhz ref=1 ch1 markers 2:-54 . 065 db 140. 000 mhz 3:-53 . 003 db 280. 000 mhz ch1 s11 swr 5 / ref 4.858 cor ch2 s22 swr 5 / ref 5.475 center 140. 000 000 mhz span 60. 000 000 mhz cor 12 aug 2010 11:48:39 1 1: 4. 8491 140. 000 000 mhz 2 2: 5. 4678 140. 000 000 mhz
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