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:
Oct. 03, 2023

Filed:

Jan. 28, 2022
Applicant:

Nxp Usa, Inc., Austin, TX (US);

Inventors:

Sai-Wang Tam, Sunnyvale, CA (US);

Xiao Xiao, Sunnyvale, CA (US);

Alden C Wong, Sunnyvale, CA (US);

Ovidiu Carnu, Scotts Valley, CA (US);

Assignee:

NXP USA, Inc., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/04 (2006.01); H03F 3/45 (2006.01); H04B 17/13 (2015.01);
U.S. Cl.
CPC ...
H04B 1/04 (2013.01); H03F 3/45475 (2013.01); H04B 17/13 (2015.01); H03F 2200/06 (2013.01); H03F 2200/451 (2013.01); H04B 2001/045 (2013.01);
Abstract

An electronic circuit includes a differential output circuit that produces a differential output signal at a differential output. A primary winding of a balun has a first balun terminal coupled to a first differential output terminal, and a second balun terminal coupled to a second differential output terminal. A configurable harmonic reduction circuit includes first and second configurable shunt capacitance circuits coupled between the first differential output terminal or the second differential output terminal, respectively, and a ground reference node. A control circuit receives tuning data associated with a calibrated tuning state. The tuning data indicates a first and second calibrated capacitance values, which are unequal, for the first and second configurable shunt capacitance circuits, respectively. The control circuit controls the first configurable shunt capacitance circuit to have the first calibrated capacitance value, and controls the second configurable shunt capacitance circuit to have the second calibrated capacitance value.


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