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:
Jun. 25, 2013
Filed:
Jun. 30, 2011
Axel Thomsen, Austin, TX (US);
Zhongda Wang, Sunnyvale, CA (US);
Sai Chu Wong, San Jose, CA (US);
Yunteng Huang, Palo Alto, CA (US);
Axel Thomsen, Austin, TX (US);
Zhongda Wang, Sunnyvale, CA (US);
Sai Chu Wong, San Jose, CA (US);
Yunteng Huang, Palo Alto, CA (US);
Silicon Laboratories Inc, Austin, TX (US);
Abstract
A power control circuit is coupled to receive a feedback signal from a power amplifier (PA) and generate a control signal to control a variable gain amplifier (VGA) coupled to an input to the PA based on the feedback signal. The power control circuit may include, in one embodiment, a mute circuit to generate a mute signal to be provided to the VGA when the control signal is less than a first level and a clamp circuit to clamp a control voltage used to generate the control signal from exceeding a threshold level.