TFS211-1

      The TFS211-1 is designed as VI telefiter.
      Reference level for the relative attenuation arel of the TFS211-1 is the filter attenuation at 211 MHz. The filter attenuation at 211 MHz is called insertion loss ae. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies at the 3 dB filter attenuation level relative to the insertion loss ae. The given values for the relative attenuation arel and for the group delay ripple have to be reached at the frequencies given below also 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.
     Some important characteristics of TFS211-1 have been concluded into several points as follow. The first one is about its insertion loss which would be typ 4.5dB and max 6.5dB. The next one is about its centre frequency which would be typ 211.0MHz and max 211.0 MHz +/- 25kHz. The next one is about its nominal frequency which would be ma 211.0MHz. The next one is about its 3dB bandwidth which would be typ 270kHz and min 215kHz. The next one is about its group delay at fN which would be typ 3.4 us and max 5 us. The next one is about its group delay ripple fN ± 50 kHz which would be max 1.0 s. The next one is about its input signals at 211,8 and 212,6 MHz at +10 dBm which would be typ -71 dBm. The next one is about its input signals at 210,2 and 209,4 MHz at +10 dBm which would be typ -71 dBm. The next one is about its operating temperature range which would be from - 5 °C to + 80 °C. The next one is about its storage temperature range which would be from - 40 °C to + 85 °C. The next one is about its temperature coefficient of frequency which would be typ - 0,036 ppm/K. The next one is about its frequency inversion temperature which would be typ + 20 °C. And so on. For more information please contact us.