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:
Feb. 25, 2020
Filed:
May. 14, 2018
Globalfoundries Inc., Grand Cayman, KY;
Chi Zhang, Allen, TX (US);
GLOBALFOUNDRIES INC., Grand Cayman, KY;
Abstract
A digitally controlled oscillator (DCO) may include a transformer, which may contain a secondary winding comprising a first port, a second port, and an array of capacitor units, wherein each capacitor unit includes a first NFET having a gate and a back gate connected to a control signal, and a drain connected to the first port; a second NFET having a gate connected to ground, a back gate connected to the control signal, and a drain connected to the source of the first NFET; and a third NFET having a gate and a back gate connected to the control signal, a drain connected to the source of the second NFET, and a source connected to the second port. The capacitor units may allow fine tuning of the DCO output frequency with a resolution of about 0.3 MHz and a range of about 80 MHz.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile