Invention Grant
- Patent Title: Distributed multi-phase clock generator having coupled delay-locked loops
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Application No.: US15196581Application Date: 2016-06-29
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Publication No.: US09793900B1Publication Date: 2017-10-17
- Inventor: Alan Fiedler
- Applicant: Microsoft Technology Licensing, LLC
- Applicant Address: US WA Redmond
- Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
- Current Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
- Current Assignee Address: US WA Redmond
- Main IPC: H03K5/15
- IPC: H03K5/15 ; H03L7/07 ; H03L7/093 ; H03L7/081

Abstract:
Multiple, distributed, clock generating delay-locked loop (DLL) elements are interconnected/coupled in such a way as to reduce the amount of phase error present in the clocks output by these DLL elements. A plurality of DLL elements are interconnected/coupled such that a root input clock is successively relayed down a series of DLL elements. The output clocks from each of these DLL elements are interconnected/coupled to phase-corresponding output clocks from DLL elements in the series. This reduces the amount of phase error on these output clocks when compared to DLL elements that do not have outputs coupled to each other.
Information query
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