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Preliminary Experiments for Power Supply Noise Reduction Using On-Board Stubs
IEICE TRANSACTIONS on Electronics
Publication Date: 2005/08/01
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Papers Selected from AP-ASIC 2004)
stub, on-board, power supply noise, di/dt noise, PRBS pattern,
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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.