XTAL Filter

The  XTAL filter that is used is a  six-crystal chebychev 0.1db ripple. The bandwidth of the filter is 2.4K and the Center Frequency is 8192.292Khz.

The frequency of crystal is 8192Khz. For ssb bandwidth, must be selected the crystals with in 50hz  tolerance.

Xtal Filter Circuit

Calculations with Crystal Ladder Filter Calculator Program

At the circuit, we use the Lser and the Cpar in order to match the filter impedance with IF Impedance.Winding the Lser inductors with -6 core.

Matching the Filter impedance