Integrated circuit comprising frequency generation circuitry for controlling a frequency source

US8654006B2 · kind B2 · utility

Assignee

• Freeescale Semiconductor, Inc. · US

Inventors

• Christophe Landez · Toulouse, FR
• Hugues Beaulaton · Toulouse, FR
• Thierry Dominique Yves Cassagnes · Tournefeuille, FR
• Stephane Colomines · Toulouse, FR
• Robert Gach · Seysses, FR
• Akbar Ghazinour · Ottobrunn, DE
• Hao Li · Poing, DE
• Gilles Montoriol · Gif-sur-Yvette, FR
• Didier Salle · Toulouse, FR
• Pierre Savary · Muret, FR

Key dates

• Filing date: Feb 13, 2009
• Grant date: Feb 18, 2014
• Expiry date: Jul 18, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S2013/9325
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An integrated circuit comprises frequency generation circuitry for controlling a frequency source for an automotive radar system. The frequency generation circuitry comprises a Phase Locked Loop (PLL) arranged to generate a control signal for controlling the frequency source, a fractional-N divider located within a feedback loop of the PLL, and frequency pattern control logic operably coupled to the fractional-N divider and arranged to control the fractional-N divider, by way of a frequency control signal, such that the PLL generates a Frequency Modulated Continuous Wave (FMCW) control signal.