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TFS433U Datasheet(PDF) 1 Page - Vectron International, Inc |
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TFS433U Datasheet(HTML) 1 Page - Vectron International, Inc |
1 / 5 page Filename: tfs 433u.doc Version 3.0 18.08.2005 VI TELEFILTER Filter specification TFS 433U 1/5 Tele Filter GmbH Potsdamer Straße 18 D 14 513 TELTOW / Germany Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30 E-Mail: tft@telefilter.com Measurement condition Ambient temperature: 23 °C Input power level: 0 dBm Terminating impedances *): input: 120 Ω// -5,0 pF output: 120 Ω// -5,0 pF Characteristics Remark: The reference level for the relative attenuation arel of the TFS 433U 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 433,92 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 = amin 2,0 dB max. 3,0 dB (reference level) - - Nominal frequency fN 433,92 MHz 433,92 MHz Centre frequency fC 433,92 MHz - 3 dB bandwidth 685 MHz min. 640 kHz - max. 760 kHz Relative attenuation arel 433,76 MHz … 434,08 MHz 0,45 dB max. 2,0 dB 433,74 MHz … 434,10 MHz 0,60 dB max. 3,0 dB 433,70 MHz … 434,14 MHz 0,77 dB max. 6,0 dB 10,00 MHz … 414,00 MHz 60 dB min. 55 dB 414,00 MHz … 424,50 MHz 52 dB min. 48 dB 424,50 MHz … 431,72 MHz 45 dB min. 31 dB 431,72 MHz … 432,12 MHz 48 dB min. 39 dB 432,12 MHz … 433,10 MHz 20 dB min. 8 dB 434,92 MHz … 442,00 MHz 13 dB min. 10 dB 442,00 MHz … 550,00 MHz 44 dB min. 36 dB 550,00 MHz … 700,0 MHz 64 dB min. 55 dB 700,00 MHz … 805,00 MHz 50 dB min. 40 dB 805,00 MHz … 1000,00 MHz 75 dB min. 60 dB Input power level - max. 10 dBm Permissible DC voltage - max. 6 V Operable temperature range - - 45 °C ... + 120°C Operating temperature range OTR - - 40 °C ... + 95°C Storage temperature range - - 45 °C ... + 130°C Frequency inversion temperature T0 30 °C Temperature coefficient of frequency TCf ** -0.033 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/K²) x (T0-T)² x fCAT(MHz). Generated: Checked / Approved: 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. |
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