Invention Grant
- Patent Title: Look-ahead digital loop filter for clock and data recovery
- Patent Title (中): 先进的数字环路滤波器,用于时钟和数据恢复
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Application No.: US11029977Application Date: 2005-01-05
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Publication No.: US08194792B2Publication Date: 2012-06-05
- Inventor: Pervez Mirza Aziz , Necip Sayiner
- Applicant: Pervez Mirza Aziz , Necip Sayiner
- Applicant Address: US PA Allentown
- Assignee: Agere Systems Inc.
- Current Assignee: Agere Systems Inc.
- Current Assignee Address: US PA Allentown
- Main IPC: H03D3/24
- IPC: H03D3/24

Abstract:
The present invention enhances the performance of a clock and data recovery (CDR) circuit by employing look-ahead techniques to produce a low latency timing adjustment. In one example of the invention employed in a CDR circuit having a decimation filter processing the CDR's phase detector output, the invention uses the most significant bits of the decimation filter output to quickly determine a look-ahead adjustment.
Public/Granted literature
- US20060146959A1 Look-ahead digital loop filter for clock and data recovery Public/Granted day:2006-07-06
Information query
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