Circuit for transferring data from one clock domain to another

US12092688B2 · kind B2 · utility

Assignee

• ADVANTEST CORPORATION · JP

Inventors

• Andreas Beermann · Stuttgart, DE
• Martin Mücke · Stuttgart, DE

Key dates

• Filing date: Apr 29, 2022
• Grant date: Sep 17, 2024
• Expiry date: Dec 13, 2042

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L7/005
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention concerns a circuit for transferring a data from one clock domain to another clock domain, the circuit comprising: a digital circuit configured to generate a data signal synchronized with a source clock signal, and to receive such data by sampling the data signal synchronized with a target clock signal; a phase comparator which is configured to determine a phase relationship between the source clock signal and the target clock signal; and a data signal synchronization circuit configured to receive data signal transitions that are synchronized with the source clock signal, and to provide a synchronized data signal transitions of which are synchronized with the target clock signal.