* roughly 1000 Watts (1 KW) off a single +5 V DC supply
* full-swing CMOS
* ~50 ASICs
* 200 MHz clock and data paths
* up to 300 simultaneous switching outputs per chip
* between 12x12 and 24x24 inch multi-layer PCB
* ASIC packages have yet to be determined/designed
To some extent, we have a good handle on the standard SI issues, but
we're looking for input in two areas: decoupling and power.
With 300 full-swing switching outputs per chip, what's the best
(or a good) way to decouple the supply? First, at the chip-level.
Second, at the board-level.
At this high of power level, what are the primary concerns? How
do we best address them? Is there a limit on how much current
a half-ounce copper sheet in FR4 can tolerate? How much current
can I push through a standard via before it melts? How can
we effectively remove the heat?
Any suggestions, ideas, and paper references will be appreciated.
-- Pat Zabinski ph: 507-284-5936 Mayo Foundation fx: 507-284-9171 200 First Street SW firstname.lastname@example.org Rochester, MN 55905 www.mayo.edu/sppdg/sppdg_home_page.html
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