Invention Grant
- Patent Title: Apparatus and method for multi-phase clock generation
- Patent Title (中): 多相时钟生成装置及方法
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Application No.: US12128367Application Date: 2008-05-28
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Publication No.: US07719334B2Publication Date: 2010-05-18
- Inventor: Jongtae Kwak
- Applicant: Jongtae Kwak
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Knobbe, Martens, Olson & Bear LLP
- Main IPC: H03L7/06
- IPC: H03L7/06

Abstract:
An apparatus and method for multi-phase clock generation are disclosed. One embodiment of the apparatus includes a clock divider generating first and second intermediate signals having edges delayed from first edges of a clock signal having a first frequency. Each of the first and second intermediate signals has a second frequency that is half of the first frequency. The first and second intermediate signals have a phase difference of 180° from each other. The apparatus also includes a first delay element delaying the first intermediate signal by a first delay amount; a second delay element delaying the first intermediate signal by a second delay amount; a third delay element delaying the second intermediate signal by a third delay amount; and a fourth delay element delaying the second intermediate signal by a fourth delay amount. The third delay amount is equal to the first delay amount. The fourth delay amount is equal to the second delay amount. The apparatus also includes a delay detection loop to adjust the second and fourth delays.
Public/Granted literature
- US20090295442A1 APPARATUS AND METHOD FOR MULTI-PHASE CLOCK GENERATION Public/Granted day:2009-12-03
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