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:
Nov. 19, 2019
Filed:
Sep. 24, 2018
Applicant:
Integrated Device Technology, Inc., San Jose, CA (US);
Inventors:
Assignee:
INTEGRATED DEVICE TECHNOLOGY, INC., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/18 (2006.01); H03L 1/00 (2006.01); H03L 7/183 (2006.01); H03K 21/02 (2006.01); H03M 3/00 (2006.01);
U.S. Cl.
CPC ...
H03K 21/02 (2013.01); H03M 3/39 (2013.01); H03M 3/456 (2013.01);
Abstract
An apparatus includes a first circuit, a second circuit and a third circuit. The first circuit may be configured to generate a first code by counting a number of cycles of an input clock signal during a period. The period may be determined by an output clock signal and a second code. The second circuit may be configured to generate a third code by a delta-sigma modulation of the first code. The third circuit may be configured to generate the output clock signal in response to the third code. An accuracy of a frequency of the output clock signal may be determined by a current value of the second code.