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:
Apr. 17, 2018
Filed:
Dec. 19, 2016
Applicant:
Silicon Laboratories Inc., Austin, TX (US);
Inventor:
Aslamali A. Rafi, Austin, TX (US);
Assignee:
Silicon Laboratories Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/008 (2006.01); H03L 7/099 (2006.01); H03L 7/085 (2006.01); H01L 49/02 (2006.01);
U.S. Cl.
CPC ...
H03L 7/099 (2013.01); H01L 28/60 (2013.01); H03L 7/085 (2013.01);
Abstract
Apparatus and methods are disclosed that utilize magnetically differential loop filter capacitor elements that are physically positioned adjacent voltage-controlled oscillator (VCO) inductor/s in the device layout of a phase locked loop (PLL) circuit. Such a PLL circuit may be employed, for example, to produce a PLL output signal for RF receivers, RF transmitters, RF transceivers and any other type of circuit configured to utilize a PLL output signal having a phase that is based on the phase of an input signal.