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TFS281 Datasheet(PDF) 1 Page - Vectron International, Inc |
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TFS281 Datasheet(HTML) 1 Page - Vectron International, Inc |
1 / 5 page Filename: tfs 281.doc Version 2.2 24.06.2010 Vectron International Filter specification TFS 281 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 Vectron International GmbH & Co. KG reserves the right to make changes to the product(s) and/or information contained herein without Measurement condition Ambient temperature: 23 °C Input power level: 0 dBm Terminating impedance: * Input: 183 Ω || -12.5 pF Output: 172 Ω || -12.6 pF Characteristics Remark: The reference level for the relative attenuation arel of the TFS281 is the minimum of the pass band attenuation. This value is defined as the insertion loss ae. The nominal frequency fN is fixed at 281,6 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 9 dB max. 12,0 dB (reference level) Nominal frequency fN 281,6 MHz Passband PB 47,2 MHz fN ± 20,0 MHz Pass band ripple p-p 0,4 max. 1 dB Relative attenuation arel fN ... fN ± 20 MHz 0,4 dB max. 1 dB 10 MHz ... fN - 40 MHz 47 dB min. 40 dB fN - 40 MHz ... fN - 31,2 MHz 41 dB min. 37 dB fN + 40 MHz ... fN + 31,2 MHz 43 dB min. 37 dB fN + 40 MHz ... fN + 220 MHz 43 dB min. 40 dB Group delay ripple within PB 35 ns max. 75 ns Return loss within PB 14 dB min. 10 dB Input power level - max. 15 dBm Operating temperature range OTR - - 40 °C ... + 85 °C Storage temperature range - - 40 °C ... + 85 °C Temperature coefficient of frequency TCf *** -95 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. **) ∆fc(Hz) = Tcf(ppm/K) x (T - To) x fN (MHz). Generated: Checked / Approved: 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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