Invention Grant
- Patent Title: Apparatus and methods of receiver offset calibration
- Patent Title (中): 接收机偏移校准的装置和方法
-
Application No.: US12909744Application Date: 2010-10-21
-
Publication No.: US08385496B1Publication Date: 2013-02-26
- Inventor: Allen Chan , Wilson Wong , Sergey Shumarayev
- Applicant: Allen Chan , Wilson Wong , Sergey Shumarayev
- Applicant Address: US CA San Jose
- Assignee: Altera Corporation
- Current Assignee: Altera Corporation
- Current Assignee Address: US CA San Jose
- Agency: Okamoto & Benedicto LLP
- Main IPC: H04L7/00
- IPC: H04L7/00 ; H04L25/00 ; H04L25/40

Abstract:
One embodiment relates to a method of offset cancellation for a receiver in an integrated circuit. The receiver is set to a phase-detector offset-cancellation mode so as to determine offset cancellation settings for the phase detector. The offset cancellation settings are applied to the phase detector. The receiver is then set to a receiver-driver offset-cancellation mode so as to determine an offset cancellation setting for the receiver driver. This offset cancellation setting is applied to the receiver driver. Another embodiment relates to an integrated circuit configured to perform receiver offset cancellation. The integrated circuit including a receiver driver configured to receive a differential input signal, a phase detector including a plurality of latches, a calibration controller, a voltage source, and first and second pairs of switches. Other embodiments, aspects, and features are also disclosed.
Information query