Evaluation and optimization of crosstalk noise in multi-core processors´ power delivery system

Author

Mousa, Omar F. ; Qahouq, Jaber A. Abu

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Alabama, Tuscaloosa, AL, USA

fYear

2011

fDate

6-11 March 2011

Firstpage

379

Lastpage

383

Abstract

Signal integrity and associated optimization techniques in power delivery network for multi-core processors, whether powered by a single converter or several power converters, are discussed. The high integration of the multi-core processors on a single die makes chipset´s sensitivity to crosstalk noise more likely. Several power converters in a multi-core processor system could improve energy efficiency and dynamic performance among others. However, this paper focuses on how several power converters can be used to achieve over 60dB of crosstalk noise isolation. Crosstalk noise can be reduced by dedicating a power converter for each processor core (or more) and placing the power converters between the processors cores.

Keywords

DC-DC power convertors; crosstalk; electromagnetic interference; energy conservation; multiprocessing systems; noise; chipset sensitivity; crosstalk noise isolation; crosstalk noise optimization; energy efficiency; multicore processor; power converter; power delivery network system; signal integrity; Capacitance; Capacitors; Converters; Couplings; Crosstalk; Multicore processing; Noise; Multi-core; buck converter; crosstalk; many-core; noise; power converter; power delivery; processor; signal integrity;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2011 Twenty-Sixth Annual IEEE

Conference_Location

Fort Worth, TX

ISSN

1048-2334

Print_ISBN

978-1-4244-8084-5

Type

conf

DOI

10.1109/APEC.2011.5744624

Filename

5744624