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:
Jan. 20, 2009
Filed:
Feb. 04, 2005
Applicants:
Adil Koukab, Saint-Prex, CH;
Michel Declercq, Penthaz, CH;
Inventors:
Adil Koukab, Saint-Prex, CH;
Michel Declercq, Penthaz, CH;
Assignee:
Marvell International Ltd., Hamilton, BM;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03L 7/093 (2006.01);
U.S. Cl.
CPC ...
Abstract
A phase lock loop (PLL) frequency synthesizer includes a reconfigurable voltage controlled oscillator (VCO) with three modes of operation: a Linear-High-gain, Zero-gain, and Low-gain mode. During the linear high gain mode, the VCO enables an analogue self-calibration of the PLL over a wide frequency tuning range. Control voltage at the input of the VCO is varied by the PLL to provide an output frequency. When the PLL is locked, the VCO is switched to the Zero-gain mode while maintaining the output.