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:
Oct. 22, 2013
Filed:
Dec. 21, 2010
Shayan Farahvash, Cupertino, CA (US);
Nathaniel King, Jr., Morgan Hill, CA (US);
Robert A. Koupal, San Leandro, CA (US);
David A. Schwan, San Jose, CA (US);
Matthew C. Romney, Alpine, UT (US);
Chee Quang Quek, Sunnyvale, CA (US);
Shayan Farahvash, Cupertino, CA (US);
Nathaniel King, Jr., Morgan Hill, CA (US);
Robert A. Koupal, San Leandro, CA (US);
David A. Schwan, San Jose, CA (US);
Matthew C. Romney, Alpine, UT (US);
Chee Quang Quek, Sunnyvale, CA (US);
RF Micro Devices, Inc., Greensboro, NC (US);
Abstract
A phase locked loop and power amplifier are integrated on a single chip. To eliminate cross-talk between the components, a frequency translation block is introduced to change the output frequency of the PLL. To isolate the components from unwanted feedback, a high isolation buffer is introduced between the components. To further isolate the components, the voltage supply domains for each component are physically separated. Each separate voltage supply domain can include a separate high isolation ring, separate voltage regulator, and separate bandgap reference.