The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2016
Filed:
Oct. 20, 2015
Xilinx, Inc., San Jose, CA (US);
XILINX, INC., San Jose, CA (US);
Abstract
In an example, an apparatus for CDR includes at least one data register, at least one edge register having an input coupled to an output of the at least one data register, and a phase detector having inputs coupled to the output of the at least one data register and an output of the at least one edge register. The apparatus further includes a frequency accumulator coupled to an output of the phase detector, a dynamic gain circuit coupled to the output of the phase detector, and a phase accumulator and code generator circuit configured to generate codes to control a phase interpolator based on an output of the dynamic gain circuit and an output of the frequency accumulator.