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Technical
Seminar Distinguished
Lecturer Series |
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Analog Front End Design for ADSL
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DATE/TIME
Friday, May 9, 2003 (4:30pm to 6:30pm)
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PLACE
Glover Bldg. Rm. 201 (CSU, Fort Collins, CO)
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ABSTRACT
The analog front end (AFE) in an ADSL modem is the key to the modem performance. It is
defined around constraints imposed by the ITU/ANSI standards bodies, the modem DSP
algorithms and the 2-wire to 4-wire hybrid performance. This talk will begin with a review
of the signal and system characteristics that constrain the AFE design.
Then an architecture is proposed and subsystem specifications derived.
Finally, sub-circuits from an echo-canceling modem will be presented. |
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PRESENTATION SLIDES
pdf |
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DR. RICHARD (DICK) HESTER (Texas
Instruments, Dallas, TX)
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Dick Hester received a PhD in
Physics from William and Mary in 1974.
He was a post-doc in the Chemistry Department of MIT until 1976 when he joined Texas
Instruments to work on design and fabrication of charge coupled devices.
He became interested in analog signal processing, and with the exception of a two-year leave of absence to teach at Iowa State University from 1992 to 1994, he has
worked thereafter on circuits and sub-systems for analog interfaces to DSP-based systems. He has served the IEEE and the Solid-State Circuits Society in various
capacities including the Program Committees of ISSCC and the Symposium on VLSI Circuits, Associate Editor of TCAS and JSSC and Program Chair of the 1997
ISSCC. He was elected TI Fellow in 1992 and IEEE fellow in 1994. |
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