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Preliminary Experiments for Power Supply Noise Reduction Using On-Board Stubs
Toru NAKURA Makoto IKEDA Kunihiro ASADA
Publication
IEICE TRANSACTIONS on Electronics
Vol.E88-C
No.8
pp.1734-1739 Publication Date: 2005/08/01 Online ISSN:
DOI: 10.1093/ietele/e88-c.8.1734 Print ISSN: 0916-8516 Type of Manuscript: Special Section PAPER (Special Section on Papers Selected from AP-ASIC 2004) Category: Keyword: stub, on-board, power supply noise, di/dt noise, PRBS pattern,
Full Text: PDF(704.7KB)>>
Summary:
This paper demonstrates a power supply noise reduction using on-board stubs. A quarter-length stub attached to the power supply line of an LSI chip works as a band-eliminate filter, and suppresses the power supply noise of the designed frequency. Preliminary experiments show that 87% of the designed frequency noise component is suppressed when stub patterns are written on a power supply area on a PCB board for a 1.25 GHz operating LSI. The results show the possibility of the stub on-chip integration when the operating frequency of LSIs becomes higher and the stub length becomes shorter.
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