Fractional-rate phase frequency detector

US8497708B2 · kind B2 · utility

Assignee

• NATIONAL SEMICONDUCTOR CORPORATION · US

Inventors

• Tonmoy Shankar Mukherjee · Thousand Oaks, US
• Arlo Aude · Lawrenceville, US

Key dates

• Filing date: May 6, 2011
• Grant date: Jul 30, 2013
• Expiry date: Jul 11, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R25/08
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A phase frequency detector detects the difference between the edges of a fractional-rate recovered clock signal and the edges within a serial data bit stream, where the edges within the serial data bit stream correspond with the edges of a full-rate clock signal that was used to clock the serial data bit stream.