Title：The Design of Frequency Generation Units with FD-SOI Technologies Under Low-Power Constraints
Location: Grand Ballroom, 4th Floor, Crowne Plaza Kunming City Centre
Time: 8:30-9:15, Oct. 23, 2025, Thursday
Speaker: Prof. Yann Deval, University of Bordeaux, France

Abstract: The design of an ultra-low-power Frequency Generation Unit (FGU), utilizing either a Phase-Locked Loop (PLL), a Delay-Locked Loop (DLL), or a combination of both, has seen a notable resurgence in interest in recent years. This is largely driven by the emergence of the Internet of Things (IoT) and the increasing demand for communication nodes that can operate for extended periods on battery power or achieve energy self-sufficiency. In this presentation, we will embark on an exploration of inspiring practical examples of ultra-low power FGUs developed for RF applications within SOI-CMOS technologies. We will highlight the transformative benefits of the fourth electrode, whether at the sub-circuit or sub-system levels, empowering us to control and modify on-the-fly the FGU characteristics. We will explore cutting-edge multi-loop FGU architectures that integrate both PLL and DLL. Additionally, we’ll delve into a streamlined single-loop PLL that utilizes a bit-rate modulator (BRM) for efficient fractional frequency division. Alongside these innovative subsystems, we will also highlight optimized oscillator topologies, showcasing the potential for superior performance and innovation in frequency generation.

Bio: 

Prof. Yann Deval is a graduate of the University of Bordeaux. He earned his PhD from the same institution in 1994. He began his academic career there in 1993 as an Assistant Professor, focusing his research on the design of analog integrated circuits (ICs), radio frequency integrated circuits (RFICs), high-speed mixed-signal ICs, and high-reliability electronics. By 1999, Dr. Deval became an Associate Professor and established the IC Design Team at IMS, the university’s microelectronics research laboratory. IMS comprises around 400 personnel. In 2004, he achieved the position of Full Professor at ENSEIRB-MATMECA, the electrical engineering department of the University of Bordeaux. From 2004 to 2014, Dr. Deval served as the Director of the collaborative research laboratory ST-IMS. Between 2010 and 2012, Dr. Deval led the ALBATROS initiative, a partnership focused on advanced research in aeronautics and space applications between THALES and the University of Bordeaux. From January 2016 to December 2021, Dr. Deval held the position of director at IMS Lab. Throughout his career, Dr. Deval has made significant contributions to the field, publishing over 220 research papers in international conferences and journals, and holding 53 patents.