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. 28, 2015
Filed:
Nov. 26, 2013
Applicant:
Stmicroelectronics International N.v., Amsterdam, NL;
Inventor:
Abhirup Lahiri, Delhi, IN;
Assignee:
STMicroelectronics International N.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 19/00 (2006.01); H03L 7/00 (2006.01); H03K 3/03 (2006.01); H03K 23/54 (2006.01); H03L 7/099 (2006.01);
U.S. Cl.
CPC ...
H03L 7/00 (2013.01); H03K 3/0315 (2013.01); H03K 23/54 (2013.01); H03L 7/0995 (2013.01);
Abstract
A phase locked loop includes a voltage controlled oscillator and a frequency divider or frequency multiplier. The voltage controlled oscillator and the frequency divider/multiplier are coupled together in a stacked configuration. A drive current is supplied to the voltage controlled oscillator. The drive current passes from the voltage controlled oscillator to the frequency divider/multiplier, thereby driving the frequency divider/multiplier with the same drive current that was supplied to the voltage controlled oscillator.