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:
Jan. 25, 2011
Filed:
Apr. 01, 2008
Soh-myung Ha, Gyeonggi-do, KR;
Woo-seok Kim, Gyeonggi-do, KR;
Soh-Myung Ha, Gyeonggi-do, KR;
Woo-Seok Kim, Gyeonggi-do, KR;
Abstract
A phase-locked loop (PLL) integrated circuit includes an oscillation control voltage generating circuit therein. The oscillation control voltage generating circuit is configured to pre-scale an output current of a charge pump therein to a first level in response to disposing the PLL integrated circuit into a pre-calibration mode of operation. The oscillation control voltage generating circuit may be responsive to an input signal (e.g., SIN) and a feedback signal (e.g., SFEED), and the magnitude of the first level of the charge pump current during the pre-calibration mode of operation may be independent of any phase difference between the input signal and the feedback signal.