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:
Mar. 31, 2023
Texas Instruments Incorporated, Dallas, TX (US);
Venkateswara Pothireddy, McKinney, TX (US);
Bhavesh G. Bhakta, Richardson, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A circuit includes a phase detector configured to produce a first up signal and a first down signal based on a difference between a reference clock and a feedback clock and a harmonic detector coupled to the phase detector, the harmonic detector configured to produce a second up signal based on the first up signal and whether the harmonic detector detects a harmonic lock between the reference clock and the feedback clock based on a first clock phase and a second clock phase. Additionally, the circuit includes a false lock detector coupled to the phase detector and to the harmonic detector, the false lock detector configured to produce a second down signal based on the first down signal and whether the false lock detector detects a false lock between the reference clock and the feedback clock based on a third clock phase and a fourth clock phase.