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:
Jan. 31, 2012
Filed:
Jun. 29, 2010
Anand Jitendra Vasani, Irvine, CA (US);
Jun Cao, Irvine, CA (US);
Afshin Momtaz, Laguna Hills, CA (US);
Anand Jitendra Vasani, Irvine, CA (US);
Jun Cao, Irvine, CA (US);
Afshin Momtaz, Laguna Hills, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
A multi-mode driver and method therefore includes a plurality of amplifiers, an adjustable load block, and adjustable current supply circuitry that selectively adjusts current magnitudes supplied to at least one of the plurality of amplifiers. The multi-mode driver can operate in a KR mode with a higher voltage supply, an SR4 mode with the higher voltage supply, and an SFI mode with a lower voltage supply. To support these modes, the multi-mode driver selectively operates a plurality of amplifiers, adjusts current magnitudes supplied to the amplifiers, and selectively adjusts an adjustable load. Thus, the multi-mode driver is operable to selectively and efficiently produce high swing and low swing output signals and to efficiently operate with any one of a plurality of supplies. The driver includes selectable loads and parallel-coupled amplifier devices that are selected based on mode.