TFR423

TFR423 is a kind of VI telefilter. There are some information about the measurement condition. The ambient temperature is 23. The input power level is 10 dBm. The terminating impedances at fN is 50 || 0 pF for input and 50 || 0 pF for output.

What comes next is about the characteristics of TFR423. The typical insertion loss (Reference level)) (ae=amin) is 1,2 dB and the maximum is 1,9 dB. The typical resonant frequency (fR) is 423,22 MHz. The series loss resistance (R1) is 13 . The operating temperature range is from -10 to +70. The storage temperature range is from -30 to +85. The frequency change with temperature between 10 to + 70 is 95 ppm. The phase is from 20 °to 20°.

The last one is about the remarks of TFR423. The minimum of the pass band attenuation amin is defined as the insertion loss ae. The centre frequency fo is the frequency of the minimum of the passband attenuation amin. The tolerancxe for the resonant frequency also includes a centre frequency shift due to the temperature coefficient of frequency TCf in the operating temperature range and a production tolerance for the resonant frequency fR.