There are two general options for AC coupling depending on whether the LVDS driver can be disabled or not. Both Figure 1 and Figure 2 shift LVDS offset down to 0.6V. the power supply at the receiver is assumed to be 2.5V. Figure 1 has equal DC offset at both positive and negative input at the receiver. This results better duty cycle. Figure 2 has slightly offset (<50mV) between positive and negative inputs at the receiver. This can prevent self oscillation while the signal is absent. But the duty cycle may slightly suffer. For an example of each to a generic differential receiver with a switching threshold at mid supply, see the solution below. For other questions not addressed by the Knowledge Base, please submit a technical support request.