MOTM

On 10/31/06, Paul Schreiber put forth:
>You connect the analog and digital grounds through a 600ohm,
>3A rated ferrite bead.

A better way to put that would be "I connect the analog and digital
grounds..."  While I'm curious why you do that, and I'm sure your
reasons are excellent, the point is that is what works for what you
are doing.  I have no idea what the original poster was trying to do.
Back when I testing sequencer ideas, I was getting "blips" on the
output until I separated the grounds.  Then again, the discrete CMOS
I was using is antique compared to the fast, high-impedance logic I
presume MOTM uses.  I've been reading quite a bit about mixed signal
design over the last few months.  I find it to be an interesting
topic, and there seems to be many different opinions about what is
"best".  Regardless, my concern here is that it is the etiquette of
this list that seems to have suffered a bit lately.