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:
Apr. 07, 2020
Filed:
Sep. 28, 2017
Applicant:
Stmicroelectronics International N.v., Schiphol, NL;
Inventors:
Assignee:
STMicroelectronics International N.V., Schipohol, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03L 7/099 (2006.01); H03L 1/00 (2006.01); H03L 7/18 (2006.01); H03L 7/22 (2006.01); H03L 7/087 (2006.01); H03L 7/093 (2006.01); H03L 7/089 (2006.01);
U.S. Cl.
CPC ...
H03L 7/099 (2013.01); H03L 1/00 (2013.01); H03L 7/087 (2013.01); H03L 7/18 (2013.01); H03L 7/22 (2013.01); H03L 7/0891 (2013.01); H03L 7/093 (2013.01); H03L 2207/05 (2013.01);
Abstract
Disclosed herein is a method of calibrating a voltage controlled oscillator (VCO) for a phase locked loop. The method includes prior to activating the phase locked loop, and prior to activating a frequency locked loop, causing a bias signal generator circuit to generate a control signal with a fixed control voltage for the VCO. The method continued with activating the frequency locked loop, and adjusting the bias signal generator to calibrate a transconductance of the bias signal generator while the frequency locked loop is activated. The frequency locked loop is then deactivated, and the phase locked loop is activated.