AVR-Chat

Can you suggest where can i find some examples of good and wrong pcbs?

Thanks.

-----Mensaje original-----
De: Dave VanHorn [mailto:dvanhorn@cedar.net]
Enviado el: Miércoles, 11 de Febrero de 2004 07:39 p.m.
Para: AVR-Chat@yahoogroups.com
Asunto: RE: [AVR-Chat] Relay Control

At 02:30 PM 2/11/2004 -0800, you wrote:
>are ATMEL AVR micros more vulnerable to EMI than other
>micros? what do you think? Or can the EMI problems be
>addressed to circuit design & environment directly?

I see no reason why AVRs would be more or less susceptible than other
similar chips.
Mostly, it's a matter of proper PCB layout, managing where the currents flow.

I use the AVR in a couple of applications now, where we are gating 3-10A
currents on timescales of 300uS to 2mS, without any emi problems.
Of course if you do the ground management wrong, you can make pretty much
anything fail.