125.0 MHz SAW Filter Part Number 253251B 1. Features Typical 1dB bandwidth of 31.85 MHz High attenuation Single Ended Operation Surface Mounted Package (SMD) 2. Electrical Specifications Source and Load Impedance = 50Ω Operating Temperature : +25℃ ℃ Minimum Typical Maximum MHz - 125.0 - dB - 23.5 25.0 1dB Bandwidth MHz 31.7 31.85 - 3dB Bandwidth MHz - 32.65 - 40dB Bandwidth MHz - 36.2 36.3 dB - 0.5 1.0 Group Delay Variation (fo ± 15.5 MHz) nsec - 20 40 Absolute Delay usec - 0.98 - dB 50 52 - ppm/℃ ℃ - -72 - Center Frequency (fo) Insertion Loss Amplitude Ripple (fo ± 15.5 MHz) Ultimate Rejection Temperature Coefficient of Frequency S1365 Package Dimension 13.30±0.2 12 8 ITF 10A001 253251B 125-31.9M 1 2 3 68nH 7.62±0.1 7 4 7 6 6 5 5 8 9 10 11 11 5 82nH Input 50Ω Output 50Ω 4.3pF 1.50±0.1 2.54±0.1 11 9 1.61±0.2 6.50±0.2 10 Matching Schematic 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] 2010. 09.14 Rev 1.0 125.0 MHz SAW Filter Part Number 253251B 3. Typical Performance ( at +25℃ ℃) 1dB Bandwidth & Ripple CH1 S21 CH2 S21 LOG LOG 1 dB/ 1 dB/ 3dB Bandwidth & Group Delay 14 Dec 2009 00:47:36 1: 0. 0000 dB 0. 000 000 MHz 3: . 16230 dB 31. 000 000 MHz REF -23.06 dB REF -23.52 dB CH1 S21 CH2 S21 LOG DEL 1 dB/ 50 ns/ 14 Dec 2009 00:48:01 1: 0. 0000 dB 0. 000 000 MHz 3: 4. 7933 ns 31. 000 000 MHz REF -23.06 dB REF 971.8 ns CH1 Markers REF=1 BW: 31. 841457 MHz cent : 125. 059614 MHz Cor CH1 Markers REF=1 BW: 32. 678196 MHz cent : 125. 041972 MHz Cor Q: 3. 9276 Q: 3. 8265 1_loss : -23 . 318 dB 1_loss : -23 . 339 dB 1 1 2 2 4 3 3 3 CH2 Markers REF=2 mean: -23 . 372 dB 2 Cor CENTER 125. 000 000 MHz Smo Cor CH2 Markers REF=2 mean: 988. 4 06 ns 2 3 s. dev : . 10730 dB s. dev : 3. 4202 ns p-p : . 48740 dB p-p : 18. 030 ns SPAN 38. 000 000 MHz CENTER 125. 000 000 MHz 40dB Bandwidth CH1 S21 LOG 10 dB/ 50dB Bandwidth 14 Dec 2009 00:46:08 1: 0. 0000 dB 0. 000 000 MHz REF -23.33 dB SPAN 38. 000 000 MHz CH1 S21 LOG 10 dB/ CH1 Markers REF=1 BW: 36. 195662 MHz 1 Cor 14 Dec 2009 00:46:21 1: 0. 0000 dB 0. 000 000 MHz REF -23.33 dB CH1 Markers REF=1 BW: 36. 529461 MHz 1 Cor cent : 124. 985007 MHz 2 cent : 124. 975735 MHz 2 Q: 3. 4530 Q: 3. 4212 1_loss : -23 . 256 dB 3 1_loss : -23 . 256 dB 4 3 CENTER 125. 000 000 MHz SPAN 92. 000 000 MHz CENTER 125. 000 000 MHz Wide band Properties CH1 S21 LOG 10 dB/ SPAN 92. 000 000 MHz SWR(S11 & S22) 14 Dec 2009 00:49:16 1: 0. 0000 dB 0. 000 000 MHz REF -22.4 dB 4 CH1 Markers REF=1 2:-59 . 875 dB 125. 000 MHz CH1 S11 CH2 S22 SWR SWR 20 / 20 / 14 Dec 2009 00:48:36 1: 7. 2195 125. 000 000 MHz 2: 6. 3271 125. 000 000 MHz REF 7.24 REF 6.312 Cor 3:-56 . 035 dB 250. 000 MHz 1 1 Cor 2 START . 010 000 MHz 2 3 STOP 500. 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 125. 000 000 MHz http://www.itf.co.kr SPAN 92. 000 000 MHz [email protected] 2010. 09.14 Rev 1.0