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:
Jun. 16, 2015
Filed:
Aug. 22, 2012
Hassan Elwan, Lake Forest, CA (US);
Ahmed Emira, Lake Forest, CA (US);
Hassan Elwan, Lake Forest, CA (US);
Ahmed Emira, Lake Forest, CA (US);
Atmel Corporation, San Jose, CA (US);
Abstract
An integrated circuit for digital controlling switching noise spurs in a receiver by shifting a switching frequency (f) to a clock frequency (f+Δf) to move a Kharmonic of the switching frequency (f) is provided. The integrated circuit includes a spur controlled clock that operates the clock frequency (f+Δf), and a DC-DC converter circuitry that includes a first power switch, and a second power switch. The first power switch and the second power switch are driven by the clock frequency (f+Δf). Δf ranges from and fis center frequency of a received channel. None of the harmonics of the clock frequency (f+Δf) is present in a channel of interest. The switching frequency is larger than the channel bandwidth 2BW.