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:
Aug. 10, 2010
Filed:
Nov. 30, 2006
Adrian Maxim, Austin, TX (US);
Charles D. Thompson, Buda, TX (US);
Mitchell Reid, Austin, TX (US);
Silicon Laboratories, Inc., Austin, TX (US);
Abstract
A receiver () includes a mixing digital-to-analog converter (DAC) (), a direct digital frequency synthesizer (DDFS) (A) and an interface (D). The mixing DAC () includes a radio frequency (RF) transconductance section () and a switching section (). The RE transconductance section () includes an input for receiving an RF signal and an output for providing an RE current signal. The switching section () is coupled to the RF transconductance section () and includes inputs for receiving bits associated with a digital local oscillator (LO) signal and an output that is configured to provide an analog output signal. The DDFS (A) includes outputs configured to provide the bits associated with the digital LO signal to the inputs of the switching section (). The interface (D) is coupled to the DDFS (A) and is configured to align the bits provided by the DDFS (A) with a first clock signal.