Invention Grant
- Patent Title: Delay locked loop circuit and operation method thereof
- Patent Title (中): 延迟锁定环路电路及其操作方法
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Application No.: US12431227Application Date: 2009-04-28
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Publication No.: US07932758B2Publication Date: 2011-04-26
- Inventor: Hye-Young Lee
- Applicant: Hye-Young Lee
- Applicant Address: KR Gyeonggi-do
- Assignee: Hynix Semiconductor Inc.
- Current Assignee: Hynix Semiconductor Inc.
- Current Assignee Address: KR Gyeonggi-do
- Agency: IP & T Group LLP
- Priority: KR10-2008-0123477 20081205
- Main IPC: H03L7/06
- IPC: H03L7/06

Abstract:
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.
Public/Granted literature
- US20100141312A1 DELAY LOCKED LOOP CIRCUIT AND OPERATION MEHTOD THEREOF Public/Granted day:2010-06-10
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