Techniques for decision feedback equalization that reduce variations in the tap weight
A circuit includes a receiver circuit, a decision feedback equalizer circuit, and a control loop circuit. The receiver circuit receives a data signal and generates an input signal in response to the data signal. The decision feedback equalizer circuit includes a tap driver and a first current source coupled to the tap driver. The tap driver drives the input signal based on a tap weight. The control loop circuit varies a current through the first current source based on variations in the input signal to reduce changes in the tap weight that are caused by the variations in the input signal.
Altera Corporation
H H
H04L H04L
additional inventional
Tim Tri Tin H. Thungoc M. Mei
Hoang Lai Tran Luo