Invention Grant
- Patent Title: Source-synchronous receiver using edge-detection clock recovery
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Application No.: US15690665Application Date: 2017-08-30
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Publication No.: US10243571B2Publication Date: 2019-03-26
- Inventor: Reza Navid
- Applicant: Rambus Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: Rambus Inc.
- Current Assignee: Rambus Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: The Neudeck Law Firm, LLC
- Main IPC: H03L7/07
- IPC: H03L7/07 ; H03L7/08 ; H03L7/081 ; H03L7/083 ; H03L7/24 ; H04B1/22 ; H04B1/7085

Abstract:
A source-synchronous clocking signal is sampled by an edge sampler triggered by a phase-adjusted version of the clocking signal. The output of the edge sampler is used as a phase-error indicator for a filtered feedback loop that aligns the phase-adjusted clocking signal to minimize, on average, the difference between the received source-synchronous clocking signal and the phase-adjusted version of the clocking signal minus the setup time of the sampler. This forms a delay-locked loop configuration. The phase adjustment information used to produce the aligned phase-adjusted clocking signal is then to produce a receiver clocking signal that is used to sample the source-synchronous data signal.
Public/Granted literature
- US20180083639A1 SOURCE-SYNCHRONOUS RECEIVER USING EDGE-DETECTION CLOCK RECOVERY Public/Granted day:2018-03-22
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