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:
Nov. 13, 2018
Filed:
Sep. 29, 2016
Macronix International Co., Ltd., Hsinchu, TW;
Hsien-Hung Wu, Hsinchu, TW;
MACRONIX INTERNATIONAL CO., LTD., Hsinchu, TW;
Abstract
An oscillator produces an oscillator output signal usable as a clock signal, otherwise as a frequency reference on an integrated circuit. The oscillator includes an RC network with a voltage-controlled element, such as a voltage-controlled resistor, voltage-controlled capacitor or a combination including a voltage-controlled resistor and voltage-controlled capacitor. Also, a tunable element having an adjustable resistance determined by a first static parameter is included in the RC network. The oscillator also includes a feedback circuit which can include a frequency-to-voltage converter. The feedback circuit generates a control signal for the voltage-controlled element. The feedback circuit includes a feedback reference circuit having a reference output determined by a second static parameter, and a loop amplifier responsive to the reference output and the oscillator output signal.