| CPC H04L 25/03063 (2013.01) [H04L 25/03267 (2013.01); H04L 25/03968 (2013.01); H04L 25/4917 (2013.01)] | 18 Claims |
|
1. A physical layer device comprising:
a fractionally-spaced equalizer configured to generate a first equalized signal based on an input analog signal, the physical layer device being a first physical layer device, the input analog signal being based on a data signal transmitted from a second physical layer device to the first physical layer device over a data communication medium, the fractionally-spaced equalizer comprising:
a first analog-to-digital converter configured to generate a first digital signal based on the input analog signal and a first clock signal;
a first feed-forward equalizer configured to generate a second equalized signal based on the first digital signal;
a second analog-to-digital converter configured to generate a second digital signal based on the input analog signal and a second clock signal, the second clock signal being out of phase with the first clock signal;
a second feed-forward equalizer configured to generate a third equalized signal based on the second digital signal; and
a first combiner configured to generate the first equalized signal by combining the second equalized signal and the third equalized signal;
a second combiner configured to generate a narrowband-cancelled signal by combining the first equalized signal and a fourth equalized signal, the narrowband-cancelled signal representing the first digital signal after electro-magnetic interference cancellation;
a data slicer configured to generate a sample signal by sampling the narrowband-cancelled signal; and
a decision feedback equalizer configured to generate the fourth equalized signal based on the sample signal.
|