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:
Jul. 15, 2014
Filed:
Mar. 02, 2010
Mustafa H. Koroglu, Austin, TX (US);
Sherry X. Wu, Austin, TX (US);
Ramin Khoini-poorfard, Austin, TX (US);
Alessandro Piovaccari, Austin, TX (US);
Mustafa H. Koroglu, Austin, TX (US);
Sherry X. Wu, Austin, TX (US);
Ramin Khoini-Poorfard, Austin, TX (US);
Alessandro Piovaccari, Austin, TX (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
A frequency synthesizer includes a controlled oscillator configured to extend a temperature range and phase noise of the synthesizer without compromising the frequency coverage of the synthesizer. The frequency synthesizer also includes bias generation circuitry that sets a bias current of a charge pump to reduce bandwidth variations of the synthesizer. The frequency synthesizer further includes switching circuitry to dynamically turn a charge pump on and off to reduce effects of current leakage in the charge pump.