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:
Sep. 01, 1998
Filed:
Dec. 16, 1996
Applicant:
Inventor:
Phong Thanh Nguyen, Pleasanton, CA (US);
Assignee:
Exar Corporation, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B / ; H03B / ;
U.S. Cl.
CPC ...
3311 / ; 331144 ; 331175 ; 3311 / ;
Abstract
An improved voltage controlled oscillator circuit is based on a multivibrator design with an internal gain stage to permit low voltage operation. An internal gain stage maintains a loop gain of greater than one to ensure oscillation even at power supply voltages as low as 2.7 volts. The added gain allows the use of resistors inserted on either sides of a timing capacitor for improved linearity.