gEDA-user: fun/easy BGA part

[Patrick Doyle]

On 12/15/06, DJ Delorie <dj at delorie.com> wrote:
>
> > You could try some DC-DC chips like the ON-Semi NCP1523, 8 pins and
> > only five or six passives. TI or National may have others.
>
> Hey, I could actually use one of those in the furnace board to make
> 3.3v from 5v.  Do they make one that can do 5v to 3.8v ?  The gumstix
> has its own LDO regulators so you can't feed it clean 3.3v, and they
> don't have the dissipation to handle 5v input.
>
> OTOH I was thinking of something on the order of a 5x5 or 6x6 grid.  A
> 6x6 can be broken out on one layer, no vias needed.
>
If you want to build something you could attach to your gumstix, you
could look at some various audio codec's.  The AIC33 from Texas
Instruments comes to mind -- I think that's available in a 5x5 or 6x6
array.

BTW, have I mentioned how confusing it is to me that you inhabit the
same mailing lists to which I belong ;-)

--wpd