TFS76

      The TFS76 is designed as VI telefilter.Reference level for the relative attenuation arel of the TFS 76 is the minimum of the pass band attenuation amin. The minimum of the pass band attenuation 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 temperature coefficient of frequency Tcf is valid for both the reference frequency fc and the frequency response of the filter in the operating temperature range.
      Some TFS76 important specifications have been concluded into several points as follow.The first one is about its insertion loss which would be typ 20.8dB and max 23dB.The next one is about its centre frequency at ambient temperature which would be 76.8 ± 75 kHz.The next one is about its pass band which would be fc ± 3.2 MHz.The next one is about its deviation from linear phase in PB which would be typ 0.2 °rms and max. 2 °rms.The next one is its group delay ripple in PB which would be typ 60 ns and max. 100 ns.The next one is about its average group delay in PB which would be typ 1.9 s and max. 3 s.The next one is about its temperature coefficient of frequency which would be -76 ppm/K.The next one is about its operating temperature range which would be from - 0 °C to + 70 °C.The next one is about its storage temperature range which would be from - 20 °C to + 80 °C. Something should be noted that the terminating impedances depend on parasitics and q-values of matching elements and the board used, and are to be understood as reference values only. Should there be additional questions, do not hesitate to ask for an application note or contact our design team. And so on.For more information please contact us.