140.0 MHz SAW Filter Part Number 251920B 1. Features Typical 1dB bandwidth of 19.79 MHz High attenuation Single Ended Operation Dual In-line Package (DIP) 2. Electrical Specifications Source and Load Impedance = 50Ω Operating Temperature : +25℃ ℃ Minimum Typical Maximum MHz - 140.0 - dB - 25.5 27.0 2dB Bandwidth MHz 19.75 19.79 19.85 25dB Bandwidth MHz - 20.57 20.65 40dB Bandwidth MHz - 20.75 - dB - 0.7 1.0 Group Delay Variation (fo ± 9.65 MHz) nsec - 60 150 Absolute Delay usec - 2.92 - dB 45 50 - ppm/℃ ℃ - -84 - Center Frequency (fo) Insertion Loss Amplitude Ripple (fo ± 9.65 MHz) Ultimate Rejection Temperature Coefficient of Frequency 12.8±0.5 5.5max 6.0max Matching Schematic 7.6±0.2 2.5±0.2 D3512 Package Dimension 1 5 22pF 39nH 22pF Output 50Ω 25.4±0.2 2.5±0.2 0.45±0.05 ITF 10A001 251920B 140-19.8M 35.1±0.5 39nH Input 50Ω 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] 2010. 09.14 Rev 1.0 140.0 MHz SAW Filter Part Number 251920B 3. Typical Performance ( at +25℃ ℃) 1dB Bandwidth & Ripple CH1 S21 CH2 S21 LOG LOG 1 dB/ 1 dB/ 2dB Bandwidth & Group Delay 12 Aug 2010 11:46:33 1: 0. 0000 dB 0. 000 000 MHz 3: . 42430 dB 19. 300 000 MHz REF -25.46 dB REF -25.81 dB CH1 S21 CH2 S21 LOG DEL 12 Aug 2010 11:47:01 1: 0. 0000 dB 0. 000 000 MHz 3:-7 . 2023 ns 19. 300 000 MHz 1 dB/ REF -25.46 dB 100 ns/ REF 2.909 us CH1 Markers REF=1 BW: 19. 672160 MHz cent : 140. 061185 MHz Cor CH1 Markers REF=1 BW: 19. 794143 MHz cent : 140. 058689 MHz Cor Q: 7. 1198 Q: 7. 0758 1_loss : -25 . 620 dB 1 1_loss : -25 . 620 dB 1 2 2 3 4 3 3 CH2 Markers REF=2 mean: -25 . 649 dB 2 Cor CENTER 140. 000 000 MHz Smo 34 CH2 Markers REF=2 mean: 2. 9237 us 2 Cor s. dev : . 12030 dB s. dev : 9. 6204 ns p-p : . 65140 dB p-p : 55. 542 ns SPAN 25. 000 000 MHz CENTER 140. 000 000 MHz 25dB Bandwidth CH1 S21 LOG 40dB Bandwidth 12 Aug 2010 11:45:27 1: 0. 0000 dB 0. 000 000 MHz 10 dB/ REF -25.68 dB CH1 S21 LOG Cor 12 Aug 2010 11:45:39 1: 0. 0000 dB 0. 000 000 MHz 10 dB/ REF -25.68 dB CH1 Markers REF=1 BW: 20. 576856 MHz 1 SPAN 25. 000 000 MHz CH1 Markers REF=1 BW: 20. 746487 MHz 1 Cor cent : 140. 031512 MHz 2 cent : 140. 017601 MHz 2 Q: 6. 8053 Q: 6. 7490 1_loss : -25 . 705 dB 3 1_loss : -25 . 705 dB 4 3 START 110. 000 000 MHz STOP 170. 000 000 MHz START 110. 000 000 MHz Wide band Properties CH1 S21 LOG STOP 170. 000 000 MHz SWR(S11 & S22) 12 Aug 2010 11:49:11 1: 0. 0000 dB 0. 000 000 MHz 10 dB/ REF -27.14 dB 4 CH1 Markers REF=1 2:-54 . 065 dB 140. 000 MHz MARKER 1-1 0 Hz CH1 S11 CH2 S22 SWR SWR 5 / 5 / 12 Aug 2010 11:48:39 1: 4. 8491 140. 000 000 MHz 2: 5. 4678 140. 000 000 MHz REF 4.858 REF 5.475 Cor 3:-53 . 003 dB 280. 000 MHz 1 1 Cor 3 2 START . 010 000 MHz 2 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 140. 000 000 MHz http://www.itf.co.kr SPAN 60. 000 000 MHz [email protected] 2010. 09.14 Rev 1.0