LTC6957: self-bias voltage

The LTC6957-2 LVDS version refers to its output logic type (LVDS), the -1 has LVPECL outputs and -3/-4 have CMOS outputs..

The LTC6957 input network/common is the same for all LTC6957 versions.  Page 22, figure 5 of the datasheet, shows how to AC-couple a LVDS signal to the LTC6957 input.  The Vincm spec sets the common mode of the AC coupled input signal to the correct input common mode level for optimized performance.

The LTC6957-2 LVDS version refers to its output logic type (LVDS), the -1 has LVPECL outputs and -3/-4 have CMOS outputs..

The LTC6957 input network/common is the same for all LTC6957 versions.  Page 22, figure 5 of the datasheet, shows how to AC-couple a LVDS signal to the LTC6957 input.  The Vincm spec sets the common mode of the AC coupled input signal to the correct input common mode level for optimized performance.