Joint Colloquium Distinguished Lecture Series

Digitally-Assisted RF

R. Bogdan Staszewski Wednesday, April 1, 2009
306 Soda Hall (HP Auditorium)
4:00 - 5:00 pm

R. Bogdan Staszewski
Distinguished Member, Technical Staff, Texas Instruments

Abstract:

RF circuits, when implemented in nanoscale CMOS and, especially, when integrated in an SoC, suffer from numerous issues, such as poor linearity, device mismatch, low Vdd headroom, high leakage, high flicker and substrate noise, etc. At the same time, the digital gates and memory are ‘free’ and powerful, so the logical step is to use digital means to mitigate the RF circuit imperfections so that their adjusted performance can match or exceed that of traditional RF circuits. This seminar first examines opportunities of digital assistance of RF and then presents case studies of calibration due to process spread, compensation due to environmental changes, performance tuning, automatic reconfigurability, and built-in self-test.

Biography

Robert Bogdan Staszewski received the BSEE (summa cum laude), MSEE and PhD degrees from the University of Texas at Dallas in 1991, 1992 and 2002, respectively.  From 1991 to 1995 he was with Alcatel Network Systems in Richardson, TX, working on Sonnet cross-connect systems for fiber optics communications. He joined Texas Instruments in Dallas, TX, in 1995 where he is currently a Distinguished Member of Technical Staff. Between 1995 and 1999, he has been engaged in advanced CMOS read channel development for hard disk drives. In 1999 he co-started a Digital RF Processor (DRPTM) group within Texas Instruments with a mission to invent new digitally-intensive approaches to traditional RF functions for integrated radios in deep-submicron CMOS processes. Dr. Staszewski currently serves as a CTO of the DRP group. He has authored and co-authored one book, two book chapters, 90 journal and conference publications, and holds 50 issued and 50 pending US patents. His research interests include nanoscale CMOS architectures and circuits for frequency synthesizers, transmitters and receivers. Dr. Staszewski is an IEEE Fellow.

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