Power integrity: ground, and other fairy tales

Power integrity: ground, and other fairy tales
by Don Dingee on 03-31-2013 at 8:30 pm

Ground. It’s that little downward-pointing triangle that somehow works miracles on every schematic. It looks very simple until one has to tackle modern power distribution network (PDN) design on a board with high speed and high power draw components, and you soon discover ground is a complicated fairy tale with a lot of influences.… Read More


Plotting to take over the time-domain only world

Plotting to take over the time-domain only world
by Don Dingee on 03-16-2013 at 10:00 am

The state machine nature of many digital designs has made time-domain debugging the favorite tool for most designers. We provide a set of inputs, data gets clocked in, and a set of outputs appears. We look for specific patterns in parallel paths, or sequences on serial lines.… Read More