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TFS75B Datasheet(PDF) 1 Page - Vectron International, Inc |
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TFS75B Datasheet(HTML) 1 Page - Vectron International, Inc |
1 / 5 page Filename: tfs 75b.doc Version 1.2 26.01.2005 VI TELEFILTER Filter specification TFS 75B 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: 1430 Ω || -6.3 pF Output: 224 Ω || -6.8 pF Characteristics Remark: The reference level for the relative attenuation arel of the TFS 75B 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 40 dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 75 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 11,3 dB max. 13,0 dB Nominal frequency fN 75,0 MHz 1 dB Pass band PB 5,5 MHz fN± 2,1 MHz Amplitude ripple in PB p-p 0,3 dB max. 1,0 dB Relative attenuation arel fN - 15 MHz ....... fN - 7,15 MHz 43 dB min. 40 dB fN + 7,15 MHz ....... fN + 15,0 MHz 40 dB min. 36 dB fN + 15 MHz ....... fN + 65,0 MHz 45 dB min. 40 dB Group delay ripple within PB p-p 75 ns max. 200 ns Operating temperature range - - 40 °C ... + 85 °C Storage temperature range - - 40 °C ... + 85 °C Temperature coefficient of frequency TCf** - 87 ppm/K - Input power level - max. 10 dBm *) 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 fTo (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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