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:
Sep. 01, 2020
Filed:
Nov. 09, 2018
Applicant:
Nxp B.v., Eindhoven, NL;
Inventors:
Siamak Delshadpour, Phoenix, AZ (US);
Chiahung Su, San Jose, CA (US);
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/03 (2006.01); H03K 3/011 (2006.01); H03L 1/02 (2006.01);
U.S. Cl.
CPC ...
H03K 3/011 (2013.01); H03K 3/0315 (2013.01); H03L 1/022 (2013.01);
Abstract
A temperature compensated current controlled oscillator (CCO) including a first current generator configured to produce a proportional to absolute temperature (PTAT) current based upon a trim signal, a second current generator configured to produce a complementary to absolute temperature (CTAT) current based upon a temperature measurement, and a ring oscillator configured to receive the PTAT current and the CTAT current and to produce a frequency signal based upon the PTAT current and the CTAT current.