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Close Only Counts...

Wed, 02/03/2010 - 11:51am
Screaming Circuits

DSCN1975DSCN1971 I think this one has both some land pattern issues and some schematic issues. It's unfortunately pretty common to see footprints that are close, but not close enough to work. Looking at the data sheet here, there may be a schematic issue as well. The only connections on to the part on this board are ground and P3. I don't know the part, so I suppose it's possible that all it needs is P3 and ground, but it looks more like a case of the footprint being wrong and the pin connections being wrong. Pins 1, 2, 3, 5 and 7 are all ground, but on the board, 1 and 3 go some place else. Bummer.

Making custom CAD parts can be pretty annoying and it seems to be a function disproportionately prone to error. Why is that?

Duane Benson

in horse shoes, hand grenades and sometimes atom bombs.

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