Wifi / let's have RF stuff powered with high current source all the time because...
joerg at openmoko.org
Mon Aug 25 21:39:27 CEST 2008
Am Mo 25. August 2008 schrieb Werner Almesberger:
> Andy Green wrote:
> > It can be prototyped and the final PA spectral performance compared to
> > "piece of wire", so this is something we can know rather than scare
> > ourselves about.
> You mean in GTA02 or in GTA03 ? For GTA03, that's definitely something
> we should look into, also given that this subsystem is completely
> different from GTA01 or GTA02. At last now we know what sort of problem
> to look for, instead of just some "generalized badness".
For GTA03 we have a datasheet that's very specific about ripple and parasitic
resistance on VDD. Doesn't look good for a FET - IIRC.
Also consider this module has battery support, so there is a decent "switch"
supposed to be inside already.
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