Invention Grant
- Patent Title: Circuits and methods for clock and data recovery
- Patent Title (中): 时钟和数据恢复的电路和方法
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Application No.: US12126655Application Date: 2008-05-23
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Publication No.: US08090067B2Publication Date: 2012-01-03
- Inventor: Peter Ho
- Applicant: Peter Ho
- Applicant Address: SG
- Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.
- Current Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.
- Current Assignee Address: SG
- Main IPC: H03D3/24
- IPC: H03D3/24

Abstract:
A clock-data recovery circuit includes a phase rotator, a phase detector and a charge pump. The phase rotator receives first and second reference clocks and differential control signals. The phase rotator generates a modified clock signal responsive to the first and second reference clocks and the control signals. The phase detector receives a data signal and the modified clock signal. The phase detector generates a modified data signal and a phase error signal responsive to the data signal and the modified clock signal. The charge pump receives the phase error signal and generates the differential control signals, which direct the phase rotator to interpolate between select clock phases.
Public/Granted literature
- US20090290672A1 Circuits and Methods for Clock and Data Recovery Public/Granted day:2009-11-26
Information query
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