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:
May. 27, 2025
Filed:
Oct. 17, 2023
Apparatus and method for optimum loop gain calibration for clock data recovery and phase locked loop
Mediatek Inc., Hsin-Chu, TW;
Ahmed Safwat Mohamed Aboelenein Elmallah, San Jose, CA (US);
Mohammed Mohsen Abdulsalam Abdullatif, San Jose, CA (US);
Tamer Mohammed Ali, San Jose, CA (US);
MEDIATEK INC., Hsinchu, TW;
Abstract
The techniques described herein relate to systems, apparatus, articles of manufacture, and methods for optimum loop gain calibration for clock data recovery and phase locked loop. An example apparatus includes a phase detector with a phase detector output and configured to generate an error signal representative of a difference between an input signal and a feedback signal. The apparatus further includes a calibrator circuit with a calibrator input coupled to the phase detector output and configured to determine correlation value associated with the error signal, and determine a gain value based on an adjustment of an absolute value of the correlation value by a pseudorandom binary sequence signal.