[sdiy] More AD1866 DAC ?'s

[jays at aracnet.com]

It's a 16 bit DAC and you're dealling with 2's complement numbers. So your numbers go from -32768 to +32767.

Jay S.


William Berzinskas <WBERZINSKAS at nc.rr.com> wrote :

> Hey everyone..
>  
> I've got this going for the most part..  i'm 
> running my ad1866 off of my pic..  and generating some signal, and all is 
> good.. 
>  
> ALMOST...
> When i send values over ~35000, it actually starts 
> coming back down again..   for instance,  if i make a triangle 
> wave (just counting up and back), it comes out great if i use 30000 as the high 
> side..  then if i change it to 60000, the nice pointy triangle looks more 
> like the letter M..   
>  
> HELP!  :-)