Filename: tfs225e.
doc version 1.
2 25.
04.
2003 VI TELEFILTER Filter specification TFS 225E 1/5 Measurement condition Ambient temperature: Input power level: Terminating impedances at fc *: 23 0 input: output: °C dBm 940 Ω // -5,7 pF 940 Ω // -5,7 pF Characteristics Remark: The reference level for the relative attenuation arel of TFS 225E 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...

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