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:
Mar. 18, 2014
Filed:
Apr. 27, 2011
Daniel L. Kaczman, Newbury Park, CA (US);
Lawrence E. Connell, Naperville, IL (US);
Joseph P. Golat, Cary, IL (US);
Manish N. Shah, Vernon Hills, IL (US);
Daniel L. Kaczman, Newbury Park, CA (US);
Lawrence E. Connell, Naperville, IL (US);
Joseph P. Golat, Cary, IL (US);
Manish N. Shah, Vernon Hills, IL (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A balanced mixer circuit (and) in a baseband receiver () includes an oscillator circuit (), a mixer (and), a digital-to-analog converter (and) and a digital signal processor (). The mixer includes CMOS devices (and). In response to differential outputs from the mixer, the digital signal processor controls the digital-to-analog converter to output bias voltages for the gate of at least one of the CMOS devices of the mixer to compensate for imbalance in the differential output of the mixer that may be caused by mismatch among two or more CMOS devices of the mixer or caused by other reasons, in order to increase second order intercept point of the mixer.