TFS380G

Filename: tfs380g.doc version 1.1 10.09.2003 VI TELEFILTER Filter Specification TFS 380G 1/5 Measurement condition Ambient temperature: 23 °C Input power level: 0 dBm Terminating impedance at fc *: input: 880 Ω II – 4,5 pF output: 850 Ω II – 3,7 pF Characteristics Remark: The reference level for the relative attenuation arel of TFS 380G is the minimum of the pass band attenuation amin. This value 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 given values for the relative attenuation arel and 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 ae = amin typ. value 12,6 dB 380 MHz limit max. 14 380 dB MHz Nominal frequency fN Centre frequency fc Relative attenuation arel fN fN ± fN fN fN fN fN fN fN fN ... fN ± 1,72 kHz ... fN ± kHz MHz MHz MHz MHz MHz MHz MHz ... fN ± ... fN ± ... fN ± ... fN ... fN ... fN ... fN + ... fN + 1,72 1,92 3 4 6 50 14,5 6 50 3 MHz MHz MHz MHz MHz MHz MHz MHz MHz GHz MHz MHz 0,5 dB 1,0 dB 8 28 41 60 53 45 43 45 65 dB dB dB dB dB dB dB dB ns max. max. min. min. min. min. min. min. min. min. 1 dB 1,5 dB 5 22 35 55 50 40 40 40 dB dB dB dB dB dB dB dB ns deg ...