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SUMMARY:TIADC Mismatch Compensation - Prof Lim Yong Ching (Nanyang Technol
 ogical University\, Singapore)
DTSTART:20090514T100000Z
DTEND:20090514T110000Z
UID:TALK18083@talks.cam.ac.uk
CONTACT:Dr George A Constantinides
DESCRIPTION:In many signal processing applications\, the highest sampling 
 speed is limited by the speed of the ADC (analog-to-digital converter). In
  order to achieve an AD (analog-to-digital) conversion time much shorter t
 han can be achieved with a single ADC\, a bank of properly sequenced sub-A
 DCs is used. Each sub-ADC samples and converts at a time displaced from th
 e others at a regular interval. Such an AD conversion system is called a T
 IADC (time-interleaved ADC).\n     The advantages of TIADC are well known 
 but TIADC exhibits mismatch problems that seriously degrade its performanc
 e. Conventional technique for compensating the mismatches uses a filter ba
 nk. In this talk\, we present a new technique for mismatch compensation ba
 sed on the generalized sampling theorem. Our new technique is computationa
 lly significantly more efficient and robust than the filter bank approach.
  The results of a 14-bit 1.6 GS/s (4×400 MS/s) TIADC synthesized using ou
 r new technique will also be presented.\n\n\nBiography:\n     Y. C. Lim re
 ceived the A.C.G.I. and B.Sc. degrees in 1977 and the D.I.C. and Ph.D. deg
 rees in 1980\, all in electrical engineering\, from Imperial College\, Lon
 don\, U.K.\n     From 1980 to 1982\, he was with the Naval Postgraduate Sc
 hool\, California. From 1982 to 2003\, he was with the Department of Elect
 rical Engineering\, National University of Singapore. Since 2003\, he has 
 been with the School of Electrical and Electronic Engineering\, Nanyang Te
 chnological University. His research interests include digital signal proc
 essing and VLSI circuits and systems design.\n     Dr. Lim was a recipient
  of the 1996 IEEE Circuits and Systems Society's Guillemin-Cauer Best Pape
 r Award\, the 1990 IREE (Australia) Norman Hayes Memorial Best Paper Award
 \, 1977 IEE (UK) Prize and the 1974-77 Siemens Memorial (Imperial College)
  Award. \n     Prof. Lim is a Fellow of IEEE. He served as a lecturer for 
 the IEEE Circuits and Systems Society under the distinguished lecturer pro
 gram from 2001 to 2002 and as an associate editor for the IEEE Transaction
 s on Circuits and Systems from 1991 to 1993 and from 1999 to 2001. He has 
 also served as an associate editor for Circuits\, Systems and Signal Proce
 ssing from 1993 to 2000. He served as the Chairman of the DSP Technical Co
 mmittee of the IEEE Circuits and Systems Society from 1998 to 2000. He ser
 ved in the Technical Program Committee's DSP Track as the Chairman in IEEE
  ISCAS'97 and IEEE ISCAS'00 and as a Co-chairman in IEEE ISCAS'99. He is t
 he General Chairman for IEEE APCCAS 2006 and a Co-General Chairman for IEE
 E ISCAS 2009.\n
LOCATION:Room 611\, EEE
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