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TFS480D Datasheet(PDF) 1 Page - Vectron International, Inc |
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TFS480D Datasheet(HTML) 1 Page - Vectron International, Inc |
1 / 5 page Filename: tfs 480d.doc Version 1.1 07.05.2008 Vectron International Filter specification TFS 480D 1/5 Vectron International GmbH & Co. KG Potsdamer Straße 18 D 14 513 TELTOW / Germany Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30 E-Mail: tft@vectron.com VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. Measurement condition Ambient temperature: 23 °C Input power level: 10 dBm Terminating impedance: * Input: 700 || -0,92 pF Output: 700 || -0,92 pF External Coil: 59 nH Characteristics Remark: The reference level for the relative attenuation arel of the TFS 480D is the minimum of the pass band attenuation amin. The minimum of the pass band attenuation amin is defined as the insertion loss ae. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies at the 3 dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 480 MHz without any tolerance. The given values for both the relative attenuation arel and the group delay ripple have to be achieved at the frequencies given below even if the centre frequency fc is shifted due to the temperature coefficient of frequency TCf in the operating temperature range and due to a production tolerance for the centre frequency fc. D a t a typ. value tolerance / limit Insertion loss ae 4,4 dB max. 6,5 dB (reference level) Nominal frequency fN - 480,0 MHz Centre frequency fC 480,0 MHz - Passband PB - fN ± 88,0 kHz Bandwidth BW 3 dB 442 kHz - Relative attenuation arel fN - 100,0 MHz … fN - 91,4 MHz 57 dB min. 45 dB fN - 91,4 MHz … fN - 16,0 MHz 43 dB min. 31 dB fN - 16,0 MHz … fN - 2,5 MHz 54 dB min. 45 dB fN - 2,5 MHz … fN - 1,6 MHz 50 dB min. 37 dB fN ± 1,2 MHz … fN ± 1,6 MHz 43 dB min. 32 dB fN + 1,6 MHz … fN + 2,1 MHz 47 dB min. 35 dB fN + 2,1 MHz … fN + 3,4 MHz 45 dB min. 37 dB fN + 3,4 MHz … fN + 6,8 MHz 53 dB min. 42 dB fN + 6,8 MHz … fN + 100,0 MHz 62 dB min. 51 dB Group delay ripple within PB 0,4 µs max. 2 µs Operating temperature range OTR - - 20 °C ... + 70°C Storage temperature range - - 30 °C ... + 80°C Frequency inversion temperature 50 °C - Temperature coefficient of frequency TCf ** -0,03 ppm/K 2 - *) The terminating impedances depend on parasitics and q-values of matching elements and the board used, and are to be understood as reference values only. Should there be additional questions do not hesitate to ask for an application note or contact our design team. **) ∆f(Hz) = TCf(ppm/K 2) x (T-T 0) 2 x fTo(MHz) Generated: Checked / Approved: |
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