812.5 MHz SAW Filter Part Number T81251B 1. Features Typical 1dB bandwidth of 7.6 MHz High attenuation Single Ended Operation Surface Mounted Package (SMD) 2. Electrical Specifications Source and Load Impedance = 50Ω Minimum Typical Maximum Room Temperature : +25℃ ℃ Center Frequency (fo) MHz - 812.5 - dB - 22.5 24.5 1dB Bandwidth 3dB Bandwidth MHz MHz 7.7 7.6 8.05 - 40dB Bandwidth MHz - 10.2 10.4 Amplitude Ripple (fo ± 3.5 MHz) Group Delay Variation (fo ± 3.5 MHz) dB nsec - 0.7 75 1.5 150 Absolute Delay usec - 1.6 - 40 45 - Insertion Loss Ultimate Rejection dB 2 ppm/℃ ℃ Temperature Coefficient of Frequency -0.03 S1365 Package Dimension 13.30±0.2 12 8 7.62±0.1 7 ITF RSOC01 T81251B 。812.5-7.6M 1 2 3 7 8 9 10 2.7nH 11 6 6 1.50±0.1 5 5 4 2.54±0.1 11 9 1.61±0.2 6.50±0.2 10 Matching Network Configuration Input 50 Ω 5 11 2.2nH 5pF 7pF Output 50 Ω 12 4 3 2 2.54±0.1 1 0.80±0.1 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] 2013. 03. 29 Rev 1.0 812.5 MHz SAW Filter Part Number T81251B 3. Typical Performance ( at +25℃ ℃) 1dB Bandwidth & Ripple(Fo ± 3.5 MHz) CH2 CH4 S21 S21 LOG LOG 1 dB/ 1 dB/ 40dB Bandwidth 6 Feb 2012 16:57:58 1: 0. 0000 dB 0. 000 000 MHz 3: - . 00990 dB 7. 000 000 MHz REF -22.2 dB REF -22.2 dB CH1 S21 LOG 10 dB/ 6 Feb 2012 16:57:12 1: 0. 0000 dB 0. 000 000 MHz REF -22.2 dB MI812A E1 3-2 S1365 M1S CH2 Markers REF=1MHz 7. 621391 BW: cent : 812 . 503865 PRm BW: 1 MHz CH1 Markers REF=1MHz 10 . 125151 cent : 812 . 516452 Q: 106 . 61 1_loss : -22 . 521 dB 1 MHz Q: 80 . 247 2 1_loss : -22 . 480 dB Cor 2 3 4 3 PRm 2 CH4 Markers mean : -22 REF=2 . 553 dB s. dev : . 14970 dB p-p : . 64770 dB 4 3 Cor CENTER 812 . 500 000 MHz SPAN 10 . 000 000 MHz 2 4 CENTER 812 . 500 000 MHz 3dB Bandwidth & Group Delay(Fo ± 3.5 MHz) CH2 CH4 S21 S21 LOG DEL 1 dB/ 200 ns/ 40 . 000 000 MHz Smith Chart(S11 & S22) 6 Feb 2012 16:57:44 1: 0. 0000 dB 0. 000 000 MHz 3: -11 . 978 ns 7. 000 000 MHz REF -22.2 dB REF 1.56 us SPAN CH1 S11 CH3 S22 3-2 S1365 M1S 1 U FS 1 U FS 1: 49. 352 2: 102 . 19 81. 242 33. 949 6 Feb 2012 16:58:12 15. 914 nH 812 . 500 000 MHz 6. 6501 nH 812 . 500 000 MHz MI812A E1 CH2 Markers REF=1MHz 8. 057282 BW: cent : 812 . 517183 PRm MHz Q: 100 . 84 1_loss 1 : -22 . 519 dB 1 Cor 2 2 3 2 PRm CH4 Markers mean : 1. REF=2 6076 us 4 s. dev : 13 . 460 ns 3 Smo p-p : 70 . 725 ns Cor 4 CENTER 812 . 500 000 MHz SPAN 10 . 000 000 MHz 2 CENTER 812 . 500 000 MHz Wideband Properties CH1 S21 LOG 10 dB/ REF -22.2 dB SPAN 40. 000 000 MHz SWR(S11 & S22) 6 Feb 2012 16:59:16 1: -25 . 379 dB 812 . 500 000 MHz CH1 CH3 MI812A E1 S11 S22 SWR SWR 1 / 1 / 6 Feb 2012 16:58:37 1: 4. 4597 812 . 500 000 MHz 2: 2. 3363 812 . 500 000 MHz REF 0 REF 0 MI812A E1 PRm PRm 1 Cor 1 2 START . 010 000 MHz STOP 2 000 . 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 812 . 500 000 MHz http://www.itf.co.kr SPAN [email protected] 40 . 000 000 MHz 2013. 03. 29 Rev 1.0