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:
Apr. 20, 2021
Filed:
Nov. 13, 2018
Ams Ag, Premstaetten, AT;
Jia Sheng Chen, Premstaetten, AT;
Gregor Schatzberger, Premstaetten, AT;
AMS AG, Premstaetten, AT;
Abstract
A phase-locked loop circuitry () having low variation transconductance design comprises a voltage controlled oscillator structure () to provide an output signal (Fosc) having an oscillation frequency. The voltage controlled oscillator structure () comprises a voltage-to-current converter circuit () and a current controlled oscillator circuit (). The voltage-to-current converter circuit is designed with a low variation transconductance. The voltage-controlled oscillator circuit () has a characteristic curve being independent of different PVT (processes, supply voltages and temperature) conditions to ensure that the phase-locked loop circuitry () is stable under different PVT condition.