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:
Jan. 16, 2024
Filed:
Dec. 12, 2022
Applicant:
Xilinx, Inc., San Jose, CA (US);
Inventors:
Assignee:
XILINX, INC., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/093 (2006.01); H03L 7/081 (2006.01); G04F 10/00 (2006.01); H03M 1/08 (2006.01); H03L 7/099 (2006.01);
U.S. Cl.
CPC ...
H03L 7/093 (2013.01); G04F 10/005 (2013.01); H03L 7/081 (2013.01); H03L 7/099 (2013.01); H03M 1/0854 (2013.01);
Abstract
Embodiments herein describe normalizing an output of a TDC in a DPLL to a resolution of the TDC. A DTC can delay a reference clock which is then input into the TDC. The TDC outputs a digital code indicating a time difference between the delayed reference clock output by the DTC and a clock generated by a DCO in the DPLL. This digital code is normalized to a resolution of the TDC and the result is filtered by a DLF.