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:
Nov. 01, 2016
Filed:
May. 16, 2014
Lattice Semiconductor Corporation, Portland, OR (US);
Kexin Luo, Shanghai, CN;
Kai Zhou, Shanghai, CN;
Shengguo Cao, Shanghai, CN;
Lingfen Yue, Shanghai, CN;
Fangquing Chu, Mountain View, CA (US);
Yu Shen, Beijing, CN;
Zhi Wu, Shanghai, CN;
Lattice Semiconductor Corporation, Portland, OR (US);
Abstract
Embodiments describe techniques for utilizing fractional-N phase locked loops (PLL). Some embodiments describe a fractional-divider based fractional-N PLL for a spread spectrum clock (SSC) generator that utilizes phase average techniques to suppress phase interpolator nonlinearity. Some embodiments describe a fractional-N PLL based on fractional dividers with hybrid finite impulse response (FIR) filtering. Some embodiments describe a small size and low power divider for a hybrid FIR fractional-N PLL.