187.5 MHz SAW Filter Part Number 252608B 1. Features Typical 1dB bandwidth of 26.3 MHz High attenuation Single Ended Operation Dual In-line Package (DIP) 2. Electrical Specifications Source and Load Impedance = 50Ω Operating Temperature : -30 ~ +70℃ ℃ Minimum Typical Maximum MHz - 187.5 - dB - 28.5 30.0 1dB Bandwidth MHz 26.0 26.38 - 3dB Bandwidth MHz - 26.91 - 40dB Bandwidth MHz - 29.24 29.6 dB - 0.45 1.2 Group Delay Variation (fo ± 12.5 MHz) nsec - 15 60 Absolute Delay usec - 1.97 - Center Frequency (fo) Insertion Loss Amplitude Ripple (fo ± 12.5 MHz) Ultimate Rejection Temperature Coefficient of Frequency dB 50 60 ppm/℃ - -18 dBc 40 60 Minimum Typical Maximum - 28.5 30.0 dB - 0.45 1.2 nsec - 15 60 - Relative Attenuation (fo ± 12.5 MHz) ± 3.0 MHz Room Temperature : +25℃ ℃ Insertion Loss dB Amplitude Ripple (fo ± 12.69 MHz) Group Delay Variation (fo ± 12.69 MHz) Input POWER : +10dBm 12.7±0.5 5.5max 6.0max Matching Schematic 7.6±0.2 2.5±0.2 D2012 Package Dimension L1 Input 50Ω 1 5 Output 50Ω C2 12.7±0.2 2.5±0.2 0.45±0.05 ITF 14A001 252608B 187.5-26.3M 20.3±0.5 C1 L2 L1 =39nH, L2 = 33nH, C1 = 43pF, C2 = 33pF Pin Configuration Dimensions shown are nominal in millimeters Base : Fe(SPCC), Au plating over Ni plated Cap : Cu & Cr Alloy, Ni Plated Termination : Kovar, Au Plated 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 1 Ground 2,4 Output 5 Others Ground http://www.itf.co.kr [email protected] 2014. 02. 04 Rev 1.0 187.5 MHz SAW Filter Part Number 252608B 3. Typical Performance ( at +25℃ ℃) 1dB Bandwidth & Ripple CH1 S21 CH2 S21 LOG LOG 1 dB/ 1 dB/ 40dB Bandwidth 19 Aug 2013 12:15:53 1: 0. 0000 dB 0. 000 000 MHz 3:- . 07830 dB 25. 380 000 MHz REF -28.07 dB REF -28.41 dB CH1 S21 LOG 10 dB/ 19 Aug 2013 12:13:59 1: 0. 0000 dB 0. 000 000 MHz REF -28.67 dB CH1 Markers REF=1 BW: 26. 382558 MHz cent : 187. 419340 MHz Cor CH1 Markers REF=1 BW: 29. 244577 MHz 1 C cent : 187. 411495 MHz Q: 7. 1039 2 Q: 6. 4084 1_loss : -28 . 374 dB 1 1_loss : -28 . 665 dB 2 3 4 3 2 CH2 Markers REF=2 mean:-28 . 261 dB Cor 3 4 s. dev : . 07400 dB p-p : . 35770 dB CENTER 187. 500 000 MHz SPAN 32. 000 000 MHz CENTER 187. 500 000 MHz 3dB Bandwidth & Group Delay CH1 S21 CH2 S21 LOG DEL 1 dB/ 50 ns/ Relative Attenuation 19 Aug 2013 12:16:09 1: 0. 0000 dB 0. 000 000 MHz 3: 3. 5166 ns 25. 380 000 MHz REF -28.07 dB REF 1.961 us SPAN 90. 000 000 MHz CH1 S21 LOG 10 dB/ 19 Aug 2013 12:14:35 1: 0. 0000 dB 0. 000 000 MHz REF -28.67 dB CH1 Markers REF=1 BW: 26. 916412 MHz cent : 187. 422230 MHz Cor CH1 Markers REF=1 2: . 41500 dB -12 . 5000 MHz 1 C Q: 6. 9631 2 3:-64 . 883 dB -15 . 5000 MHz 4 1_loss : -28 . 359 dB 1 4: . 30670 dB 12. 5000 MHz 2 5:-62 . 134 dB 15. 5000 MHz 3 Smo Cor CH2 Markers REF=2 mean: 41. 9758 us 2 3 s. dev : 3. 4365 ns p-p : 15. 164 ns 5 3 CENTER 187. 500 000 MHz SPAN 32. 000 000 MHz CENTER 187. 500 000 MHz Wideband Properties CH1 S21 LOG 10 dB/ REF -28.34 dB SWR(S11 & S22) 19 Aug 2013 12:18:17 1: 0. 0000 dB 0. 000 000 MHz CH1 Markers REF=1 2:-72 . 333 dB 187. 500 MHz 1 SPAN 90. 000 000 MHz CH1 S11 CH2 S22 SWR SWR 10 / 10 / 19 Aug 2013 12:17:42 1: 1. 5269 187. 500 000 MHz 2: 2. 7318 187. 500 000 MHz REF 1.523 REF 2.732 Cor 3:-71 . 297 dB 375. 000 MHz 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 187. 500 000 MHz http://www.itf.co.kr SPAN 90. 000 000 MHz [email protected] 2014. 02. 04 Rev 1.0