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. 04, 2021
Filed:
Dec. 30, 2019
Applicant:
Nxp Usa, Inc., Austin, TX (US);
Inventors:
Firas N. Abughazaleh, Austin, TX (US);
David Bearden, Austin, TX (US);
Assignee:
NXP USA, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/197 (2006.01); H03L 7/099 (2006.01); H03L 7/089 (2006.01);
U.S. Cl.
CPC ...
H03L 7/1976 (2013.01); H03L 7/0891 (2013.01); H03L 7/099 (2013.01);
Abstract
An apparatus is disclosed that includes a phase detector circuit for generating a first pulse signal based on first and second input clock signals. A first circuit adjusts the first pulse signal by delaying transmission of a leading edge of the first pulse signal, but not a trailing edge of the first pulse signal. A charge pump circuit charges or discharges a capacitor based on the adjusted first pulse signal, and a voltage controlled oscillator (VCO) circuit generates an output clock signal with a frequency that depends on a voltage on the capacitor.