Integrated device having phase interpolator and input controller thereof

US11469746B2 · kind B2 · utility

Assignee

• SAMSUNG ELECTRONICS CO., LTD. · KR

Inventors

• Vishnu Kalyanamahadevi Gopalan Jawarlal · Bengaluru, IN
• Gunjan Mandal · Survanagiri, IN
• Avneesh Singh Verma · Bengaluru, IN
• Sanjeeb Kumar Ghosh · Bengaluru, IN

Key dates

• Filing date: Jun 21, 2021
• Grant date: Oct 11, 2022
• Expiry date: Jun 21, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03L7/1976
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

An integrated circuit device includes a sensing circuit configured to determine a delay code from a plurality of delay codes using a phase interpolation (PI) code and a plurality of input clock phases, a variable delay circuit coupled to the sensing circuit and configured to generate a variable delay based on the delay code and generate a delayed PI code using the PI code and the delay code, the delayed PI code corresponding to a code obtained from adding the variable delay to the PI code, and a phase interpolator coupled to the variable delay circuit and configured to generate an output clock phase from the plurality of input clock phases using the delayed PI code.