Patent ID: 11881969
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A receiver for a serial data link, comprising:
an analog front end (AFE) comprising a continuous-time linear equalizer (CTLE) configured to receive an input signal from a transmitter, the CTLE comprising:
a first output node;
a second output node;
a plurality of programmable tail current sources configured to adjust a direct current (DC) offset between the first output node and the second output node; and
a calibration circuit which comprises:
a slicer configured to output a difference between a first average output voltage corresponding to the first output node and a second average output voltage corresponding to the second output node; and
a calibration counter configured to increment or decrement an offset count based on the difference,

wherein the plurality of programmable tail current sources are adjusted based on a value of the offset count.