Invention Grant
- Patent Title: Aperture generating circuit for a multiplying delay-locked loop
- Patent Title (中): 用于倍增延迟锁定环路的光圈产生电路
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Application No.: US12613936Application Date: 2009-11-06
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Publication No.: US07994832B2Publication Date: 2011-08-09
- Inventor: Tamer M. Ali , Robert J. Drost , Chih-Kong Ken Yang
- Applicant: Tamer M. Ali , Robert J. Drost , Chih-Kong Ken Yang
- Applicant Address: US CA Redwood Shores
- Assignee: Oracle America, Inc.
- Current Assignee: Oracle America, Inc.
- Current Assignee Address: US CA Redwood Shores
- Agency: Park, Vaughan, Fleming & Dowler LLP
- Agent Steven E. Stupp
- Main IPC: H03L7/00
- IPC: H03L7/00

Abstract:
A multiplying delay-locked loop (MDLL) is described. In the MDLL, a phase interpolator (PI) provides a correction signal to selection control logic by phase mixing two internal signals (which have different phases) from a sequence of delay elements in the MDLL. This correction signal compensates for a delay associated with the selection control logic, thereby ensuring that a selection pulse or signal output by the selection control logic to a selection circuit (such as a multiplexer) is appropriately timed so that the selection circuit can selectively injection lock the sequence of delay elements using edges in a reference signal.
Public/Granted literature
- US20110109356A1 APERTURE GENERATING CIRCUIT FOR A MULTIPLYING DELAY-LOCKED LOOP Public/Granted day:2011-05-12
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