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. 18, 2020
Filed:
Mar. 04, 2019
Xilinx, Inc., San Jose, CA (US);
Mayank Raj, Sunnyvale, CA (US);
Didem Z. Turker Melek, San Jose, CA (US);
Parag Upadhyaya, Los Gatos, CA (US);
Yohan Frans, Palo Alto, CA (US);
Kun-Yung Chang, Los Altos Hills, CA (US);
Xilinx, Inc., San Jose, CA (US);
Abstract
A phase locked loop (PLL) circuit includes a voltage controlled oscillator (VCO), a first loop circuit, and a second loop circuit. The first loop circuit includes a first loop filter configured to receive a first signal based on a feedback signal from the VCO and provide a first VCO frequency control signal to the VCO. The second loop circuit includes a compensation circuit configured to receive a reference signal and the first signal, and provide a second VCO frequency control signal to the VCO.