发明授权
US08576646B2 Control voltage tracking circuits, methods for recording a control voltage for a clock synchronization circuit and methods for setting a voltage controlled delay
有权
控制电压跟踪电路,用于记录时钟同步电路的控制电压的方法和用于设定电压控制延迟的方法
- 专利标题: Control voltage tracking circuits, methods for recording a control voltage for a clock synchronization circuit and methods for setting a voltage controlled delay
- 专利标题(中): 控制电压跟踪电路,用于记录时钟同步电路的控制电压的方法和用于设定电压控制延迟的方法
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申请号: US13300468申请日: 2011-11-18
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公开(公告)号: US08576646B2公开(公告)日: 2013-11-05
- 发明人: Feng Lin
- 申请人: Feng Lin
- 申请人地址: US ID Boise
- 专利权人: Micron Technology, Inc.
- 当前专利权人: Micron Technology, Inc.
- 当前专利权人地址: US ID Boise
- 代理机构: Dorsey & Whitney LLP
- 主分类号: G11C7/00
- IPC分类号: G11C7/00 ; G11C7/22
摘要:
Memories, clock synchronization circuits, clock synchronization controller circuits, and methods for setting a voltage controlled delay of a clock synchronization circuit and tracking and recording the control voltage are disclosed. For example, a clock synchronization controller provides an initial control voltage to the voltage controlled delay during initialization of the synchronization circuit until a phase dependent control voltage stabilizes. The stable phase dependent control voltage is substituted for the initial control voltage. Following stabilization of the phase dependent control voltage, a phase detector of the clock synchronization circuit is activated. A recovery control voltage is provided by the clock synchronization controller to the voltage controlled delay during recovery of the clock synchronization from a power-saving mode until the phase dependent control voltage stabilizes.
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