Invention Grant
- Patent Title: Low jitter clock recovery circuit
- Patent Title (中): 低抖动时钟恢复电路
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Application No.: US11225559Application Date: 2005-09-13
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Publication No.: US08085893B2Publication Date: 2011-12-27
- Inventor: Carl William Werner
- Applicant: Carl William Werner
- Applicant Address: US CA Sunnyvale
- Assignee: Rambus, Inc.
- Current Assignee: Rambus, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Mahamedi Paradice Kreisman LLP
- Agent Lance M. Kreisman
- Main IPC: H03D3/24
- IPC: H03D3/24

Abstract:
A clock recovery circuit includes a first phase detector for measuring the phase difference between a first clock signal from a voltage controlled oscillator (VCO) and a data signal. A phase shifter responsive to a control signal based on this phase difference adjusts the phase of an incoming clock signal to yield a second clock signal. The phase difference between the first clock signal and the second clock signal is measured and the resulting signal is low-pass filtered to derive a control signal for controlling the VCO. The phase locked loop including the VCO filters out jitter.
Public/Granted literature
- US20070058768A1 Low jitter clock recovery circuit Public/Granted day:2007-03-15
Information query
IPC分类: