Abdalla, M., A. Rezayee, D. Cassan, M. V. Ierssel, C. Holdenried, and S. Sadr,
DECISION FEEDBACK EQUALIZER AND TRANSCEIVER,
, no. 20120201289: Gennum Corp, Rambus Inc, August, 2012.
AbstractA decision feedback equalizer, transceiver, and method are provided, the equalizer having at least one comparator, the at least one comparator comprising a first stage, comprising a main branch having two track switches with a resistive load, an offset cancellation branch, a plurality of tap branches with transistor sizes smaller than the main branch, in which previous decisions of the equalizer are mixed with the tap weights using current-mode switching, and a cross coupled latch branch; and a second stage, comprising a comparator module for making decisions based on the outputs of the first stage and a clock input, and a plurality of flip-flops for storing the output of the comparator module.