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:
May. 13, 2003
Filed:
Oct. 16, 2000
Abolfazl Khosrowbeygi, Sunnyvale, CA (US);
Sudhir Aggarwal, Santa Clara, CA (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
According to a particular example application, the present invention is embodied in the form of first and second current-steering sections arranged to steer a differential current input signal. Each of the first and second current-steering sections is current driven via differential current paths. The first current-steering section configured and arranged to source current and thereby drive the second current-steering section. Another aspect of the invention employs stacked Gilbert cells, as described above, to form a variable gain amplifier (“VGA”) circuit that achieves a large dynamic range, a wide frequency response and improved linearity, while consuming relatively low amounts of power.