SV: filmscanners: Re: So it's the bits?

[Ingemar Lindahl]

I'm not sure which thread or topic this really is, but since I really need help, I'll 
ask from my confused heart:

Julian wrote:

> > >Now, let's unplug the 8 bit D/A, and plug in a 12 bit D/A instead, to the
> > >same circuit. My point is - NOTHING CHANGES.

Then Ray Amos wrote:

> Is there anyone out there other than the participants who has any idea
> what they are saying?

For us who think we understand some of it, but lately have started to doubt our 
earlier pictures of bits and stuff,
is there any good place on the web where someone gives a thorough explanation of how 
D/A converters work - preferably with graphics? Like: what does  "linearity" really 
mean in this particular context? Do more bits really mean finer discrimination between 
levels? What I think I need is a place that starts from basics but keeps on going  to 
qualified definitions.

Not yet hopeless, but lost

Ingemar Lindahl