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.

Date of Patent:
May. 04, 2021

Filed:

Sep. 23, 2019
Applicant:

Skyworks Solutions, Inc., Irvine, CA (US);

Inventors:

Bang Li Liang, Ottawa, CA;

Thomas Obkircher, Santa Ana, CA (US);

Adrian John Bergsma, Kanata, CA;

Peter Harris Robert Popplewell, Ottawa, CA;

Assignee:

SKYWORKS SOLUTIONS, INC., Irvine, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/30 (2006.01); H03K 3/356 (2006.01); H03F 3/19 (2006.01); H03K 3/011 (2006.01); H03K 3/354 (2006.01);
U.S. Cl.
CPC ...
H03F 1/303 (2013.01); H03F 1/301 (2013.01); H03F 3/19 (2013.01); H03K 3/011 (2013.01); H03K 3/354 (2013.01); H03K 3/356086 (2013.01); H03K 3/356182 (2013.01);
Abstract

Methods and systems are provided for generating an oscillating signal for use as a clock in digital logic timing. The oscillating signal is generated via a differential RC relaxation oscillator including an oscillator core and biasing circuitry. The oscillator core may be configured such that the oscillating signal it generates is substantially sinusoidal or pseudo-sinusoidal and contains less harmonic content relative to a square wave signal. The biasing circuitry may be configured to have a reduced dependence on temperature so that the biasing values it provides vary less with temperature.


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