On Sun, Dec 19, 2010 at 4:39 PM, Nathan House <nathanpiclist@gmail.com> wro=
te:
> I've made a PCB for the DIP version of the PIC18F4550, but now I'm trying=
 to
> make a board for the TQFN package of the 4550. I was wondering if you guy=
s
> would mind checking out my schematic and layout below and let me know if =
it
> looks alright?
>
> Schematic:
> http://www.roboticsguy.com/images/misc/pic18f4550_tqfn_schematic.png
> Layout: http://www.roboticsguy.com/images/misc/pic18f4550_tqfn_pcb.png

If the DIP version of the circuit works, I'll assume your schematic is OK.

I think that running ground and power in a circle around the board
might invite inductive noise pickup.  Think "star," not "circle."

Regards,
Mark
markrages@gmail
--=20
Mark Rages, Engineer
Midwest Telecine LLC
markrages@midwesttelecine.com
--=20
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