Can the input of the TLK6201EA be DC coupled to a driver that is source terminated 50 ohms to ground, and swings from 0V to -0.4V pk single ended, and run from DC to the maximum bit rate of 6.25Gbps? Likewise can the output of the TLK6201EA be DC coupled to a load that is terminated 50 ohms to 3.3V and run from DC to the maximum bit rate of 6.25Gbps? We're concerned that the 0V to -0.4V input swing may violate the input common mode voltage specification but we can't seem to find that spec. in the data sheet. We are also concerned that the part might not perform all the way down to DC even if the input is DC coupled because of the equalization filter. Kindly please advise.
Thanks again,
-John