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TFS434A Datasheet(PDF) 1 Page - Vectron International, Inc |
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TFS434A Datasheet(HTML) 1 Page - Vectron International, Inc |
1 / 5 page Filename: tfs 434a.doc Version 1.2 25.08.2006 VI TELEFILTER Filter specification TFS 434A 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 impedance: * Input: 430 Ω || -4,7 pF Output: 430 Ω || -4,6 pF Characteristics Remark: The reference level for the relative attenuation arel of the TFS 434A is the minimum of the pass band attenuation. This value is defined as the insertion loss ae. The nominal frequency fN is fixed at 434,0 MHz without any tolerance. The values of relative attenuation arel are guaranteed for the whole operating temperature range. The frequency shift of the filter in the operating temperature range is included in the production tolerance scheme. D a t a typ. value tolerance / limit Insertion loss ae = amin 8,0 dB max. 10,0 dB (reference level) Nominal frequency fN - 434,0 MHz Passband PB - f N ± 2,5 MHz Pass band ripple p-p 0,2 dB max. 0,5 dB Relative attenuation arel f N … f N ± 2,5 MHz 0,25 dB max. 0,5 dB f N - 433,7 MHz … f N - 34 MHz 45 dB min. 40 dB f N - 34 MHz … f N - 10 MHz 40 dB min. 20 dB f N + 21 MHz … f N + 31 MHz 40 dB min. 30 dB f N + 31 MHz … f N + 366 MHz 46 dB min. 40 dB Group delay ripple within PB 18 ns max. 30 ns Return loss 15 dB min. 10 dB Operating temperature range OTR - - 40 °C ... + 85°C Storage temperature range - - 45 °C ... + 85°C Temperature coefficient of frequency TCf ** 18 ppm/K - *) 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) x (T-T0) 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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