Invention Grant
- Patent Title: Receiver with offset calibration
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Application No.: US15582182Application Date: 2017-04-28
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Publication No.: US10027516B2Publication Date: 2018-07-17
- Inventor: Yikui Jen Dong
- Applicant: Rambus Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: Rambus Inc.
- Current Assignee: Rambus Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Fenwick & West LLP
- Main IPC: H03H7/30
- IPC: H03H7/30 ; H04L25/03 ; H04B1/16 ; H04B10/69 ; H04L25/02

Abstract:
An on-chip AC coupled receiver with offset calibration. The receiver includes AC coupling circuitry to couple a differential input signal into a coupled differential signal having a first signal and a second signal. The receiver includes a first comparator to generate a first error signal indicative of whether a first reference signal is greater or smaller than a signal derived from the coupled differential signal. The receiver includes a second comparator to generate a second error signal indicative of whether a second reference signal is greater or smaller than the signal derived from the coupled differential signal. The receiver further includes feedback circuitry to adjust a voltage offset between the first signal and the second signal of the coupled differential signal based on the first error signal and the second error signal.
Public/Granted literature
- US20170331648A1 RECEIVER WITH OFFSET CALIBRATION Public/Granted day:2017-11-16
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