gEDA-user: fun/easy BGA part
John Luciani
jluciani at gmail.com
Fri Dec 15 16:12:13 EST 2006
On 12/15/06, DJ Delorie <dj at delorie.com> wrote:
>
> Ok, a s.e.design thread has got me thinking about pan-frying BGAs.
> Now I'm curious. What's a good BGA to start with? "Good" is defined
> as:
>
> 1. Inexpensive, cause I'll probably toast a few.
>
> 2. Useful, because it's good to see results.
>
> 3. Easy to design around, because I want to worry about the soldering
> process, and not burn through a number of chips getting the design
>
> 4. Require a minimum of support components.
>
> 5. Not so complex that lots of tiny vias would be needed. If I can
> get by with two rows pulled out on the top with 7/7 rules, and the
> remaining rows tied to gnd/vcc through one or two big vias, that's
> acceptable.
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.
(* jcl *)
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