255.0 MHz SAW Filter Part Number 262952B 1. Features Typical 1dB bandwidth of 29.4 MHz High attenuation Single Ended Operation Surface Mounted Package (SMD) 2. Electrical Specifications Source and Load Impedance = 50Ω Operating Temperature : -20℃ ℃ ~ +70℃ ℃ Minimum Typical Maximum MHz - 255.0 - dB - 31.0 32.5 1dB Bandwidth MHz 29.25 29.41 - 3dB Bandwidth MHz - 29.8 - 40dB Bandwidth MHz - 31.26 31.4 dB - 0.65 1.2 Group Delay Variation (fo ± 14.32 MHz) nsec - 30 80 Absolute Delay usec - 2.66 - dB 45 48 - ppm/℃ ℃ - -18 - Minimum Typical Maximum MHz - 31.0 32.5 dB - 0.65 1.2 nsec - 30 80 Center Frequency (fo) Insertion Loss Amplitude Ripple (fo ± 14.32 MHz) Ultimate Rejection Temperature Coefficient of Frequency Room Temperature : +25℃ ℃ Insertion Loss Amplitude Ripple (fo ± 14.53 MHz) Group Delay Variation (fo ± 14.53 MHz) 20.00±0.2 9.80±0.2 10 9 8 Matching Schematic 2.30±0.1 S2098 Package Dimension 7 7.62±0.1 6 6 7 8 9 10 18nH ITF 11A001 262952B 。255-29.4M 1 2 3 4 Input 50Ω 5 1.02±0.1 5 4 3 2 10 5 36pF 18nH 24pF Output 50Ω 1 1.91±0.1 1.56±0.2 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 10 Ground 1,6 Output 5 Others Ground http://www.itf.co.kr [email protected] 2011. 01. 24 Rev 1.0 255.0 MHz SAW Filter Part Number 262952B 3. Typical Performance ( at +25℃ ℃) 1dB Bandwidth & Ripple CH1 S21 CH2 S21 LOG LOG 3dB Bandwidth & Group Delay 31 Oct 2009 06:03:17 1: 0. 0000 dB 0. 000 000 MHz 3:- . 01450 dB 29. 060 000 MHz 1 dB/ REF -30.83 dB 1 dB/ REF -31.42 dB CH1 S21 CH2 S21 LOG DEL 31 Oct 2009 06:03:49 1: 0. 0000 dB 0. 000 000 MHz 3:-4 . 0313 ns 29. 060 000 MHz 1 dB/ REF -30.83 dB 50 ns/ REF 2.644 us CH1 Markers REF=1 BW: 29. 412630 MHz cent : 255. 025962 MHz Cor CH1 Markers REF=1 BW: 29. 801256 MHz cent : 255. 041195 MHz Cor Q: 8. 6706 Q: 8. 5581 1_loss : -30 . 990 dB 1 1_loss : -30 . 971 dB 1 2 2 3 4 3 3 2 CH2 Markers REF=2 mean:-30 . 987 dB Cor CENTER 255. 000 000 MHz Smo Cor 2 CH2 Markers REF=2 mean:42. 6629 us 3 s. dev : . 12320 dB s. dev : 5. 2923 ns p-p : . 65640 dB p-p : 30. 009 ns SPAN 36. 000 000 MHz CENTER 255. 000 000 MHz 40dB Bandwidth CH1 S21 LOG Smith Chart 31 Oct 2009 06:02:02 1: 0. 0000 dB 0. 000 000 MHz 10 dB/ REF -31.48 dB SPAN 36. 000 000 MHz CH1 S11 CH2 S22 1: 40. 768 2: 55. 389 1 U FS 1 U FS 31 Oct 2009 06:05:11 14. 666 nH 255. 000 000 MHz 8. 3088 nH 255. 000 000 MHz 23. 498 13. 313 CH1 Markers REF=1 BW: 31. 269161 MHz 1 Cor Cor cent : 255. 021542 MHz 2 Q: 8. 1557 1_loss : -31 . 219 dB 1 2 Hld 3 4 Cor CENTER 255. 000 000 MHz CENTER 255. 000 000 MHz SPAN 95. 000 000 MHz Wideband Properties CH1 S21 LOG 10 dB/ REF -30.92 dB SPAN 95. 000 000 MHz SWR(S11 & S22) 31 Oct 2009 06:07:11 1: 0. 0000 dB 0. 000 000 MHz CH1 Markers REF=1 2:-58 . 769 dB 255. 000 MHz CH1 S11 CH2 S22 SWR SWR 10 / 10 / 31 Oct 2009 06:04:59 1: 1. 7363 255. 000 000 MHz 2: 1. 3126 255. 000 000 MHz REF 1.737 REF 1.312 Cor 3:-56 . 157 dB 510. 000 MHz 1 1 Cor 2 3 2 START . 010 000 MHz STOP 800. 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 CENTER 255. 000 000 MHz http://www.itf.co.kr SPAN 95. 000 000 MHz [email protected] 2011. 01. 24 Rev 1.0