Invention Grant
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
- Patent Title: Control voltage tracking circuits, methods for recording a control voltage for a clock synchronization circuit and methods for setting a voltage controlled delay
- Patent Title (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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Application No.: US13300468Application Date: 2011-11-18
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Publication No.: US08576646B2Publication Date: 2013-11-05
- Inventor: Feng Lin
- Applicant: Feng Lin
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Dorsey & Whitney LLP
- Main IPC: G11C7/00
- IPC: G11C7/00 ; G11C7/22

Abstract:
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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