TFS70H14

tfs70H14.doc Version 1.1 16.04.2002 VI TELEFILTER Measurement condition : Ambient temperature TA: Input power level: Terminating impedances in fc: Filter specification TFS 70H14 1/5 25 °C 0 dBm for input: for output: 50 50 // 0 pF // 0 pF Characteristics : Remark: Reference level for the relative attenuation arel of the TFS 70H14 is the minimum of the pass band attenuation a min. 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 and lower frequencies at the 20 dB filter attenuation level relative to the insertion loss ae . The temperature coefficient of frequency Tcf is valid both for the reference frequency f c 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 Insertion loss (Reference level) Centre frequency at ambient temperature (fCTA) Pass band : Amplitude ripple in PB : Bandwidth at ambient temperature TA: 1 3 40 dB - band width dB - band width dB - band width arel 4,0 4,25 20 MHz MHz MHz BW ae fc PB typ. value tolerance / limit max. 25 dB MHz MHz dB 70,0 MHz 70,0 ± 0,1 fc .. fc ± 3,85 max. 0,8 8,9 10,9 MHz MHz min. min. max. 8,0 8,5 11,1 MHz MHz MHz Relative attenuation fc fc ± fc ± 4,0 5,55 ..... fc ± MHz ..... fc ± MHz ..... fc ± 45 1,8 33 0,6 -87 dB µs ns ° ppm/K² max. max. min. max. 1 3 40 ...