Just because you WW in neat bundles doesn't mean you have to ignore signal
groups.

Anyway, I'm not wire wrapping boards. I'm making PCBs and I almost always
have mixed analog/digital on the same board.  I prefer to keep the digital
grunge out of my analog area. Sure, the auto router might like to find a
path for a data pin right next to an op-amp input, but *I* don't want it
there. I want to keep the data bus in a tight area, I'm not worried about
crosstalk from data pin to data pin because the lines are settled by the
time a chip select comes along.

Tony



-----Original Message-----
From: Mike Reagan [mailto:[EMAIL PROTECTED] 
Sent: Friday, May 21, 2004 7:52 AM
To: 'Protel EDA Forum'
Subject: Re: [PEDA] Router comparison





I remember years ago an engineer getting mad at me because I wire-wrapped
his circuit trying to make it look nice and neat with all the wires bundled
together in "streets & avenues". He said it was a big cross talk problem. He
wanted point-to-point with just a little slack in the wire length.

Looks like some things never change.

Tom
Absolutely,  I learned this from my WW days also.  If you  wanted the WW
card to work with the least amount of noise,  you never ran neat bundles

Mike







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