Patent ID: 11962439
Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A system for receiving a data signal transmitted via serial links, comprising:
a timing recovery loop comprising:
an analog to digital converter coupled to the output of a media receiver;
an equalizer coupled to an output of the digital converter;
a slicer coupled to an output of the equalizer;
a phase detector coupled to the output of the slicer;
a loop filter coupled to the output of the phase detector;
a phase interpolator coupled to the output of the loop filter,
wherein the phase interpolator provides a clock signal input to the analog to digital converter to trigger sampling of the output of the media receiver;
a fast equalizer, coupled to the timing recovery loop, comprising:
a filter coupled to an output of the equalizer and configured to receive filter coefficients from a lookup table;
a coefficient improver coupled to an output of the equalizer and configured to receive an error signal from the filter,
wherein the coefficient improver is further configured to update filter coefficients in the lookup table;
a low pass filter coupled to an output of the phase detector and configured to provide an index address to the lookup table to select the filter coefficients for use by the filter; and
a slicer coupled to an output of the filter and providing a data output signal corresponding to the data signal.