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TFS173A Datasheet(PDF) 1 Page - Vectron International, Inc |
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TFS173A Datasheet(HTML) 1 Page - Vectron International, Inc |
1 / 5 page tfs173A.doc Version 1.5 01.08.2001 VI TELEFILTER Filter Specification TFS 173A 1/5 1. Measurement condition : Ambient temperature TA: 23 °C Input power level: 0 dBm Terminating impedances at fc *) : for input: 48 -21,5 pF. ( typical value ) for output: 48 -21,5 pF. ( typical value ) 2. Characteristics : Remark: Reference level for the relative attenuation arel of the TFS173A 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 reference frequency fc is the arithmetic mean value of the upper ( f3dB+ ) and lower ( f3dB-) frequencies at the 3 dB filter attenuation level relative to the insertion loss ae. The temperature coefficient of frequency Tcf is valid both for the reference frequency fc and the frequency response of the filter in the operating temperature range. The frequency shift of the filter in the operating temperature range is not included in the production tolerance scheme. Data typ. value tolerance / limit Insertion loss (Reference level) ae 26,5 dB max. 28 dB Reference frequencyfc at ambient temperature (fCTA) 174,175 MHz 174,050 ... 174, 300 MHz Pass band ( PB ) in O.T.R. : min. ( BW3 - 0,35 ) MHz Amplitude ripple in PB (p-p) 1,1...1,2 dB max. 1,5 dB Bandwidth : 3 dB - band width ( BW3 ) in O.T.R. : 34,95 ± 0,175 MHz 1,5 dB - band width at ambient temperature TA . 34,850 MHz 3 dB - band width at ambient temperature TA . 34,960 MHz 34,95 ± 0,050 MHz 22 dB - band width at ambient temperature TA . 35,620 MHz 24 dB - band width at ambient temperature TA . 35,660 MHz Relative attenuation in O.T.R. : arel f3dB- + 0,1 MHz ... f3dB+ - 0,1 MHz 1,2 dB max. 1,5 dB f3dB+ + 0,4 MHz ... f3dB+ + 0,6 MHz 25 dB min. 22 dB f3dB- - 0,6 MHz ... f3dB- - 0,4 MHz 25 dB min. 22 dB f3dB+ + 0,6 MHz ... f3dB+ + 1,0 MHz 27 dB min. 24 dB f3dB- - 1,0 MHz ... f3dB- - 0,6 MHz 27 dB min. 24 dB f3dB+ + 1,0 MHz ... f3dB+ + 1,3 MHz 33 dB min. 30 dB f3dB- - 1,3 MHz ... f3dB- - 1,0 MHz 33 dB min. 30 dB f3dB+ + 1,3 MHz ... f3dB+ + 5,0 MHz 40 dB min. 35 dB f3dB- - 5,0 MHz ... f3dB- - 1,3 MHz 40 dB min. 35 dB f3dB+ + 5,0 MHz ... f3dB+ + 100 MHz 50...55 dB min. 45 dB f3dB- - 100 MHz ... f3dB- - 5,0 MHz 50...60 dB min. 45 dB Group delay ( mean value in PB ): 2,15 µs max. 3 µs Group delay ripple in PB (p-p): 50 ns max. 120 ns Deviation from linear phase in PB : 12 ° p-p...(2° r.m.s.) Triple transit attenuation compared to main signal 60 dB Crosstalk 60 dB Temperature coefficient of frequency ( Tcf ) [ LiNbO3 ] - 87 ppm/K - 94 ppm/K Frequency deviation of fc over temperature fc(Hz) = Tcf(ppm/K) x (T - TA) x fCTA (MHz) Operating temperature range ( O.T.R. ) - 10 °C ... + 70 °C Storage temperature range - 40 °C ... + 85 °C *) 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. Generated: Dunzow W. Checked/Approved: Dr. Bert Wall VI TELEFILTER Vectron International, Inc. Potsdamer Stra ße 18 267 Lowell Road D 14 513 TELTOW / Germany Hudson, NH 03051 / USA Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30 Tel: (603) 598-0070 Fax: (603) 598-0075 E-Mail: tft@telefilter.com E-Mail: vti@vtinh.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. |
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