Wednesday, Feb 22, 2006
IEEE Circuits and Systems, Dallas Chapter:   Seminar

https://ewh.ieee.org/soc/cas/dallas/ 
 

IEEE Circuits and Systems, Dallas Chapter: Seminar

Title: Digital RF Processor (DRP) for Cellular Phones

Presenter: Dr. Bogdan Staszewski, Texas Instruments Inc., Dallas, TX

Date: Wednesday Feb 22, 2006. 6:30pm, Refreshments; 7:00pm, Program

Location: Dallas Texins Activities Center, Conf Room 1 (North end of Texas Instruments expressway site, 13900 N Central Expw.; site entrance on north-bound access road, between Midpark Rd. & Spring Valley Rd.)

Abstract :

RF circuits for multi-GHz frequencies have recently migrated to low-cost digital deep-submicron CMOS processes. Unfortunately, this process environment, which is optimized only for digital logic and SRAM memory, is extremely unfriendly for conventional analog and RF designs. We present fundamental techniques recently developed that transform the RF and analog circuit design complexity to digital domain for a wireless RF transceiver, so that it enjoys the benefits of digital approach, such as process node scaling and design automation. All-digital phase locked loop, all-digital control of phase and amplitude of a polar transmitter, and direct RF sampling techniques allow great flexibility in reconfigurable radio design. Digital signal processing concepts are used to help relieve analog design complexity, allowing one to reduce cost and power consumption in a reconfigurable design environment. The ideas presented have been used in Texas Instruments to develop two generations of commercial digital RF processors: a single-chip Bluetooth radio and a single-chip GSM radio.

Biography :

Bogdan Staszewski received the BSEE, 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. 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 Radio Frequency Processor (DRP)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 leads the DRP system and design development for transmitters and frequency synthesizers. He has authored and co-authored 40 journal

and conference publications and holds 25 issued US patents.

Sudhind Dhamankar, Publicity Chair, IEEE CAS/Dallas, 214-567-8914