TFS400K

tfs400k.doc version 3.2 01.12.2003 VI TELEFILTER Measurement condition Ambient temperature: Input power level: Terminating impedance: * Input: Output: External coil: 23 10 375 375 47 nH Preliminary Specification TFS 400 K 1/5 °C dBm -1.9 pF -1.9 pF Characteristics Remark: Reference level for the relative attenuation arel of the TFS400K is the minimum of the pass band attenuation amin . The minimum of the pass band www.DataSheet4U.comattenuation 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 1 dB filter attenuation level relative to the insertion loss ae . The nominal frequency fN is fixed at 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 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. Data Insertion Loss (reference level) Nominal Frequency Bandwidth 3 dB arel ... fN ± ± ± 500 700 1 kHz ... fN kHz ... fN MHz ... fN ± ± ± ± 82,5 700 1 13 kHz kHz MHz MHz ae fN BW typ. value 4,5 400,04 dB MHz tolerance / limit max. 6,5 400 dB MHz T.B.D. - Relative Attenuation fN fN fN fN 0,4 28 43 50 dB dB dB dB max. min. min. min. 1 15 27 40 dB dB dB dB Group Delay Ripple fN ± 82,5 kHz OTR 0,6 20 TCf ** -0,036 °C ppm/K² µs max. 1 µs ...