While FIGS. 4 and 5A illustrate differential architectures by way of example, single ended implementations are within the scope and spirit of the present disclosure. In one embodiment, a reference voltage signal is not provided. For example, a decision-making slicer circuit for an NRZ system may operate without such differential reference voltage signal. To that end, FIG. 5B illustrates an adding slicer 500B without a reference input, consistent with an illustrative embodiment. By way of comparative example, adding slicer 500B does not include components 502B, 504B, 506B, and 508B. Further, it only includes a single adder circuit 530(0). Instead of relying on the differential reference voltage input VREFp/VREFN, the adding slicer 500B simply evaluates the VIP?VIN differential signal via the input stage 501.
Clock Skew Between the Clocks of the Slicer and the 1 Tap DFE Feedback Circuit
