发明授权
- 专利标题: Apparatus and methods of receiver offset calibration
- 专利标题(中): 接收机偏移校准的装置和方法
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申请号: US12909744申请日: 2010-10-21
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公开(公告)号: US08385496B1公开(公告)日: 2013-02-26
- 发明人: Allen Chan , Wilson Wong , Sergey Shumarayev
- 申请人: Allen Chan , Wilson Wong , Sergey Shumarayev
- 申请人地址: US CA San Jose
- 专利权人: Altera Corporation
- 当前专利权人: Altera Corporation
- 当前专利权人地址: US CA San Jose
- 代理机构: Okamoto & Benedicto LLP
- 主分类号: H04L7/00
- IPC分类号: H04L7/00 ; H04L25/00 ; H04L25/40
摘要:
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.
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