Method for performing loop unrolled decision feedback equalization in an electronic device with aid of voltage feedforward, and associated apparatus

摘要

A method for performing loop unrolled decision feedback equalization (DFE) and an associated apparatus are provided. The method includes: receiving a tap control signal and an offset control signal from a digital domain of a DFE receiver in an electronic device, and generating DFE information respectively corresponding to the tap control signal and the offset control signal in an analog domain of the DFE receiver; broadcasting the DFE information respectively corresponding to the tap control signal and the offset control signal toward comparators in the DFE receiver; utilizing the comparators to perform comparison operations according to the DFE information respectively corresponding to the tap control signal and the offset control signal to generate comparison results; and selectively adjusting the tap control signal and the offset control signal according to the comparison results, to optimize the DFE information respectively corresponding to the tap control signal and the offset control signal, respectively.

主权项

1. A method for performing loop unrolled decision feedback equalization (DFE) in an electronic device, the method comprising the steps of:
receiving a tap control signal and an offset control signal from a digital domain of a DFE receiver in the electronic device, and generating DFE information respectively corresponding to the tap control signal and the offset control signal in an analog domain of the DFE receiver; broadcasting the DFE information respectively corresponding to the tap control signal and the offset control signal toward a plurality of comparators in the DFE receiver; utilizing the plurality of comparators to perform comparison operations according to the DFE information respectively corresponding to the tap control signal and the offset control signal to generate a plurality of comparison results; and selectively adjusting the tap control signal and the offset control signal according to the plurality of comparison results, in order to control the DFE information respectively corresponding to the tap control signal and the offset control signal, respectively; wherein the DFE information corresponding to the tap control signal comprises a plurality of DFE coefficients of the DFE receiver; and the DFE information corresponding to the offset control signal comprises an offset of the DFE receiver.