[avr-chat] proper voodoo caps for ATmega168 (28-pin DIP)

[Joe Strout]

Stupid newbie question time...

What are the recommended noise suppression capacitors for this chip?   
Of course I want one between VCC and ground (pins 7 and 8), but on the  
other side, we have GND, AREF, and AVCC (pins 22 through 20).  I know  
that AVCC should be connected to VCC "through a low-pass  
filter" (means capacitor, nes pas?).  And my intuition is to put a cap  
between AVCC and GND, but what about AREF?  Should we add one there too?

Thanks,
- Joe