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:
Nov. 23, 2010
Filed:
Dec. 04, 2008
Dawei Huang, San Diego, CA (US);
Arif Amin, Fremont, CA (US);
Waseem Ahmad, Union City, CA (US);
Rajesh Kumar, Sunnyvale, CA (US);
Venkatesh Arunachalam, Santa Clara, CA (US);
Dawei Huang, San Diego, CA (US);
Arif Amin, Fremont, CA (US);
Waseem Ahmad, Union City, CA (US);
Rajesh Kumar, Sunnyvale, CA (US);
Venkatesh Arunachalam, Santa Clara, CA (US);
Oracle America, Inc., Redwood City, CA (US);
Abstract
A two stage fully differential amplifier has been designed which works, in tandem with a TX-FIR, as a linear equalizer at low frequencies, not covered by the TX-FIR, and also acts as a linear amplifier at higher frequencies which are equalized by the TX-FIR. The amplifier as a frequency response which does not attenuate signals frequencies less than one twentieth of baud rate, creates gain peaking ion the region between one twentieth and one tenth of baud rate and maintains flat peak gain up to half of baud rate. Different aspects of the frequency response curve (such as dc gain, max gain and zero frequency) are completely programmable. Also, the differential amplifier has been designed from low power and process, voltage and temperature insensitive frequency response.