发明授权
US08106693B2 Delay locked loop circuit and operation method thereof 有权
延迟锁定环路电路及其运行方法

  • 专利标题: Delay locked loop circuit and operation method thereof
  • 专利标题(中): 延迟锁定环路电路及其运行方法
  • 申请号: US13072068
    申请日: 2011-03-25
  • 公开(公告)号: US08106693B2
    公开(公告)日: 2012-01-31
  • 发明人: Hye-Young Lee
  • 申请人: Hye-Young Lee
  • 申请人地址: KR Gyeonggi-do
  • 专利权人: Hynix Semiconductor Inc.
  • 当前专利权人: Hynix Semiconductor Inc.
  • 当前专利权人地址: KR Gyeonggi-do
  • 代理机构: IP & T Group LLP
  • 优先权: KR10-2008-0123477 20081205
  • 主分类号: H03K7/06
  • IPC分类号: H03K7/06
Delay locked loop circuit and operation method thereof
摘要:
A delay locked loop circuit includes a delay replica model unit for reflecting a delay time of an actual output path to a source clock and outputting the reflected source clock as a delay replica clock, a detector for detecting a remaining time after subtracting a time corresponding to a multiple of a clock cycle of the source clock from a time corresponding to a phase difference between the delay replica clock and the source clock, and a delay locking unit for delaying the source clock for a delay time to synchronize a clock generated by delaying the source clock for the detected remaining time of the detector with a phase of the source clock.
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