125.0 MHz SAW Filter Part Number 251855B 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 = 50Ω Operating Temperature : -30℃ ℃ ~ +80℃ ℃ Minimum Typical Maximum MHz - 125.0 - dB - 11.0 13.5 1dB Bandwidth MHz 17.3 17.85 - 3dB Bandwidth MHz - 18.9 - 40dB Bandwidth MHz - 22.7 23.2 dB - 0.4 1.0 Group Delay Variation (fo ± 7.5 MHz) nsec - 40 80 Absolute Delay usec - 0.85 0.9 dB 40 45 - ppm/℃ ℃ - -86 - Minimum Typical Maximum Center Frequency (fo) Insertion Loss Amplitude Ripple (fo ± 7.5 MHz) Ultimate Rejection Temperature Coefficient of Frequency Room Temperature : +25℃ ℃ Insertion Loss dB - 11.0 13.0 Amplitude Ripple (fo ± 8.1 MHz) dB - 0.4 1.0 nsec - 40 80 Group Delay Variation (fo ± 8.1 MHz) S1365 Package Dimension 13.30±0.2 8 7.62±0.1 7 ITF 11A001 251855B . 125-17.8M 11 12 1 2 3 7 8 9 10 6 6 11 1.50±0.1 5 5 4 2.54±0.1 9 1.61±0.2 6.50±0.2 10 Matching Schematic L1 Input 50Ω 39nH 11 L3 5 8.2nH Output 50Ω 12 4 3 2 2.54±0.1 1 0.80±0.1 C1 75pF L2 15nH Pin Configuration Dimensions shown are nominal in millimeters Body : Al2O3 Lid : Kovar, Ni Plated Termination : Au plating 0.3 ~ 1.0um, over a 1.27 ~ 8.89um Ni Plating I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Tel: 82-32-621-1213 Fax: 82-32-621-1218 Input 11 Ground 6, 12 Output 5 Others Ground http://www.itf.co.kr [email protected] 2011. 11. 04 Rev 1.0 125.0 MHz SAW Filter Part Number 251855B 3. Typical Performance ( at +25℃ ℃) 1dB Bandwidth & Ripple CH2 S21 CH4 S21 LOG LOG 3dB Bandwidth & Group Delay 31 Oct 2011 16:33:27 1: 0. 0000 dB 0. 000 000 MHz 3:- . 14360 dB 16. 200 000 MHz 1 dB/ REF -10.8 dB 1 dB/ REF -10.8 dB CH2 S21 CH4 S21 LOG DEL 31 Oct 2011 16:33:14 1: 0. 0000 dB 0. 000 000 MHz 3:-23 . 815 ns 16. 200 000 MHz 1 dB/ REF -10.8 dB 100 ns/ REF 823 ns CH2Markers REF=1 BW: 17. 893703 MHz CH2Markers REF=1 BW: 18. 885864 MHz cent : 124. 840415 MHz cent : 124. 924422 MHz Q: 6. 9768 Q: 6. 6147 1_loss : -10 . 867 dB 1_loss : -10 . 874 dB 1 1 2 2 3 4 PRm 2 2 PRm CH4Markers mean:-10REF=2 . 915 dB s. dev : . 08000 dB CH4Markers 4 REF=2 mean: 850. 81 ns 3 s. dev : 6. 4708 ns Smo p-p : . 33880 dB Cor p-p : 35. 823 ns Cor CENTER125. 000 000 MHz SPAN 22. 000 000 MHz 2 4 CENTER125. 000 000 MHz 40dB Bandwidth CH1 S21 4 3 3 LOG 2 Wide band Properties 31 Oct 2011 16:32:50 1: 0. 0000 dB 0. 000 000 MHz 10 dB/ REF -10.8 dB SPAN 22. 000 000 MHz CH1 S21 LOG 31 Oct 2011 16:35:14 1: 0. 0000 dB 0. 000 000 MHz 10 dB/ REF -10.8 dB 1 CH1Markers REF=1 BW: 22. 395100 MHz PRm 1 CH1Markers REF=1 2:-45 . 070 dB 106. 500 MHz PRm cent : 125. 145680 MHz 3:-51 . 405 dB 125. 000 MHz Q: 5. 5881 2 1_loss : -10 . 789 dB 4:-52 . 718 dB 142. 100 MHz Cor 5:-59 . 710 dB 250. 000 MHz 2 3 4 3 4 5 CENTER125. 000 000 MHz SPAN 70. 000 000 MHz START . 010 000 MHz Smith Chart(S11 & S22) CH1 S11 CH3 S22 1 U FS 1 U FS 1: 28. 404 2: 28. 375 -5 . 4658 21. 124 STOP 500. 000 000 MHz SWR(S11 & S22) 31 Oct 2011 16:33:47 232. 95 pF 125. 000 000 MHz 26. 896 nH 125. 000 000 MHz PRm CH1 S11 CH3 S22 SWR SWR 10 / 10 / 31 Oct 2011 16:34:11 1: 1. 7916 125. 000 000 MHz 2: 2. 1821 125. 000 000 MHz REF 0 REF 0 PRm 2 Cor Cor 1 1 2 CENTER125. 000 000 MHz SPAN 70. 000 000 MHz I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Tel: 82-32-621-1213 Fax: 82-32-621-1218 CENTER125. 000 000 MHz http://www.itf.co.kr SPAN 70. 000 000 MHz [email protected] 2011. 11. 04 Rev 1.0