185.0 MHz SAW Filter Part Number 252508B 1. Features Typical 1dB bandwidth of 24.6 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 - 185.0 - dB - 27.8 29.5 1dB Bandwidth MHz 24.4 24.63 - 3dB Bandwidth MHz - 25.16 - 40dB Bandwidth MHz - 27.4 27.55 dB - 0.45 1.0 Group Delay Variation (fo ± 11.8 MHz) nsec - 20 50 Absolute Delay usec - 2.06 - dB 45 50 - Center Frequency (fo) Insertion Loss Amplitude Ripple (fo ± 11.8 MHz) Ultimate Rejection ppm/℃ ℃ Temperature Coefficient of Frequency -72 S1365 Package Dimension 13.30±0.2 8 ITF 13A001 252508B 。185-24.6M 11 12 1 2 3 L2 7.62±0.1 7 4 7 8 9 Input 50Ω 10 1.50±0.1 5 5 11 5 L3 Output 50Ω 11 6 6 2.54±0.1 9 1.61±0.2 6.50±0.2 10 Matching Schematic 12 4 3 2 2.54±0.1 L1 1 0.80±0.1 L1 = L4 = 22nH, L2 = L3 = 12nH 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 L4 Tel: 82-32-621-1213 Fax: 82-32-621-1218 Pin Configuration Input 11 Ground 6, 12 Output 5 Others Ground http://www.itf.co.kr [email protected] 2013. 03. 25 Rev 1.0 185.0 MHz SAW Filter Part Number 252508B 3. Typical Performance ( at +25℃ ℃) 1dB Bandwidth & Ripple CH1 S21 CH2 S21 LOG LOG 1 dB/ 1 dB/ 40dB Bandwidth 20 Feb 2012 13:33:52 1: 0. 0000 dB 0. 000 000 MHz 3:- . 00770 dB 23. 600 000 MHz REF -27.6 dB REF -28.05 dB CH1 S21 LOG 10 dB/ 20 Feb 2012 13:31:27 1: 0. 0000 dB 0. 000 000 MHz REF -27.7 dB CH1 Markers REF=1 BW: 24. 632138 MHz cent : 185 . 000820 MHz Cor CH1 Markers REF=1 BW: 27. 407749 MHz 1 Cor cent : 184 . 977778 MHz Q: 7. 5105 2 Q: 6. 7491 1_loss : -27 . 769 dB 1 1_loss : -27 . 809 dB 2 3 4 3 2 CH2 Markers REF=2 mean:-27 . 797 dB Cor 3 4 s. dev : . 10810 dB p-p : . 46900 dB CENTER 185 . 000 000 MHz SPAN 30. 000 000 MHz CENTER 185 . 000 000 MHz 3dB Bandwidth & Group Delay CH1 S21 CH2 S21 LOG DEL 1 dB/ 50 ns/ 50dB Bandwidth 20 Feb 2012 13:34:07 1: 0. 0000 dB 0. 000 000 MHz 3: 4. 9508 ns 23. 600 000 MHz REF -27.6 dB REF 2.106 us CH1 S21 LOG 10 dB/ cent : 184 . 992082 MHz 20 Feb 2012 13:31:35 1: 0. 0000 dB 0. 000 000 MHz REF -27.7 dB CH1 Markers REF=1 BW: 25. 168297 MHz Cor SPAN 85. 000 000 MHz CH1 Markers REF=1 BW: 27. 685978 MHz 1 Cor cent : 184. 956117 MHz Q: 7. 3502 2 Q: 6. 6805 1_loss : -27 . 769 dB 1 1_loss : -27 . 809 dB 2 3 Smo Cor 2 CH2 Markers REF=2 mean: 42. 0699 us 3 s. dev : 3. 6347 ns 3 p-p : 18. 310 ns CENTER 185 . 000 000 MHz SPAN 30. 000 000 MHz CENTER 185. 000 000 MHz Wide band Properties CH1 S21 LOG 10 dB/ REF -29.8 dB 4 SPAN 85. 000 000 MHz SWR(S11 & S22) 20 Feb 2012 13:37:27 1: 0. 0000 dB 0. 000 000 MHz CH1 Markers REF=1 2: -55 . 728 dB 185 . 000 MHz CH1 S11 CH2 S22 SWR SWR 1 / 1 / 20 Feb 2012 13:35:49 1: 2. 4325 185 . 000 000 MHz 2: 1. 7622 185 . 000 000 MHz REF 2.446 REF 1.76 Cor 3: -55 . 458 dB 370 . 000 MHz 1 1 Cor 3 2 START . 010 000 MHz 2 STOP 600 . 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 185 . 000 000 MHz http://www.itf.co.kr SPAN 85. 000 000 MHz [email protected] 2013. 03. 25 Rev 1.0