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:
Aug. 25, 2020
Filed:
Mar. 29, 2019
Applicant:
Silicon Laboratories Inc., Austin, TX (US);
Inventor:
Abdulkerim L. Coban, Austin, TX (US);
Assignee:
Silicon Laboratories Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/093 (2006.01); H02M 3/07 (2006.01);
U.S. Cl.
CPC ...
H03L 7/093 (2013.01); H02M 3/07 (2013.01);
Abstract
A unity gain buffer is shared by a charge pump and an active loop filter in a phase-locked loop. The charge pump uses the unity gain buffer to reduce current mismatch in the charge pump and the active loop filter uses the unity gain buffer in a circuit that increases the effective capacitance of the active loop filter.