TFS400C2

tfs400c2.doc version 1.0 23.05.2000 _____________________________________________________________________________________________________ VI TELEFILTER SAW Filter Specification TFS 400 C2 1/5 _____________________________________________________________________________________________________ Measurement condition Ambient temperature: 23 °C Input power level: 0 dBm Terminating impedances for input: 500 Ω // -1 pF for output: 500 Ω // -1 pF Characteristics Remark: www.DataSheet4U.com band attenuation amin is defined as the insertion loss ae. The centre frequency fo is the arithmetic mean value of the upper and lower frequencies at the 3 dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed on 400 MHz without tolerance. The given values for the relative attenuation arel and for the group delay ripple have to be reached at the frequencies given below also if the centre frequency fo 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 fo. Reference level for the relative attenuation arel of the TFS 400 C2 is the minimum of the pass band attenuation amin. The minimum of the pass Data Insertion loss (Reference level) Nominal frequency ae = amin fN typ. value - tolerance/limit max. 6,5 dB BW min. 400,000 MHz 160 kHz Guaranteed 1,5 dB signal band width Relative attenuation fN ± 80 kHz fN fN fN fN fN arel - max. min. min. min. m...