Tutorial

Tutorials ISCAS 2019

12: Digitally Enhanced Mixed Signal Systems

  • Guillaume Ferré, IMS Bordeaux
  • Germain Pham, Telecom Paristech
  • Chadi Jabbour Telecom Paristech

Abstract:

With the CMOS technology reaching its limits, the design of cyber physical systems is becoming more and more complex. Securing the performance in terms of resolution, speed or flexibility would require a more intensive use of digital assistance to compensate for the increased challenges on the RF and analog parts.This tutorial will provide an overall overview of how to design, size and implement a digital assistance to compensate for a given non-ideality. All the main steps will be covered from the modeling approach to the implementation in fixed point. The major caveats for each topic will be discussed in order to materialize the limits of the presented methods and models. Concrete examples as well as live experimental demos will be presented for several applications such as Digital Pre-Distortion for Power Amplifiers, Digital correction of Stacked and Time Interleaved ADCs and Dynamic Element Matching Techniques for Digital to Analog Converters.

Biographies

  • Guillaume Ferré

    received the bachelor’s degree in electronic and telecommunication engineering (ENSIL) from the University of Limoges, France, in 2003, and the Ph.D. degree from the Limoges University of Technology in 2006. From 2006 to 2008, he worked as a Senior Researcher at Xlim and IMS Laboratories. He is currently Associate Professor at the ENSEIRB-MATMECA Engineering School of Bordeaux (France). His main research interests are in wireless communication theory, including synchronization and channel estimation for multi-carrier systems, primary and secondary user co-existence in cognitive radio, and Dirty-RF for wideband power amplifiers and time interleaved analog to digital converters.

  • Germain Pham

    received the Electrical Engineering, Computer Science and Telecommunications master's degree from the Ecole Nationale Supérieure de l'Électronique et de ses Applications (ENSEA) and the Master Degree in Intelligent and Communicating Systems from the University of Cergy-Pontoise (UCP) in 2009.

    In 2013, he received the Ph.D. degree in Electronics and Communications at Telecom ParisTech, Paris, France. He did a post-doctorate at École de technologie supérieure, Montréal, Canada during 2014 and now he is a research engineer at Telecom ParisTech. His research interests include sigma delta modulation and digital processing for power amplifier linearization.

  • Chadi Jabbour

    received the M.Sc. degree from the Ecole Supérieure de physique et de chimie industrielles, France, in 2007, and the Ph.D. degree from Telecom Paristech, France, in 2010. From 2011 to 2014, he was with the Institute Mines Telecom, Telecom ParisTech, as a Research Engineer. From 2014 and 2015, he was a Visiting Fellow with Nokia Technologies, Berkeley, where he was involved in novel architecture design for RF-to-digital receivers. In 2015, he became an Associate Professor with Institute Mines Telecom. His research interests include analog to digital converters design and calibration, post and pre distortion for communication systems, and flexible receiver architectures.