> > > So not really 10-bit after all. 3.1 bits [about
> > > what I said :)]
> >
> > No: Far better than 3.1 bits.

So although you only have 7 levels plus full on/off (9 levels, 3.1 bits
worth of unique states), each level is individually tunable to a level
that would have required ~10bits of resolution to specify via a normal
linear D-A converter.

A very interesting disctinction.  I wonder how often something like that IS
useful.  Certainly, for your typical n-channel x-bit converter, you don't
need more than n simultaneous levels even if 2^x is much larger than n.
Back when we were talking about the 8-channel, 8-bit, 50kHz (? IIRC?) PWM
controller, I was coming up with LOTS of ways that could work if you could
carefully pick the 8 levels to not conflict with each other, but you can't
do that for the normal case...

BillW

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