发明申请
- 专利标题: Timing recovery and phase tracking system and method
- 专利标题(中): 定时恢复和相位跟踪系统及方法
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申请号: US09844296申请日: 2001-04-30
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公开(公告)号: US20020044617A1公开(公告)日: 2002-04-18
- 发明人: Aaron W. Buchwald , Myles Wakayama , Michael Le , Josephus Van Engelen , Xicheng Jiang , Hui Wang , Howard A. Baumer , Avanindra Madisetti
- 主分类号: H04L007/00
- IPC分类号: H04L007/00
摘要:
A high-speed serial data transceiver includes multiple receivers and transmitters for receiving and transmitting multiple analog, serial data signals at multi-gigabit-per-second data rates. Each receiver includes a timing recovery system for tracking a phase and a frequency of the serial data signal associated with the receiver. The timing recovery system includes a phase interpolator responsive to phase control signals and a set of reference signals having different predetermined phases. The phase interpolator derives a sampling signal, having an interpolated phase, to sample the serial data signal. The timing recovery system in each receiver independently phase-aligns and frequency synchronizes the sampling signal to the serial data signal associated with the receiver. A receiver can include multiple paths for sampling a received, serial data signal in accordance with multiple time-staggered sampling signals, each having an interpolated phase.
公开/授权文献
- US07012983B2 Timing recovery and phase tracking system and method 公开/授权日:2006-03-14