GTA02 Power Glitch Reason Found

[Andy Green]

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Somebody in the thread at some point said:
> Dear all:
> 
> We have some discussion on this issue.
> In A5, we decide to rework a 4.7uF 10V capacitor on VB_SYS.
> In A6, we will change the PCB and add a 22uF 10V capacitor on VB_SYS.

Hi Allen -

Did these discussions include NXP opinion in the loop?

I found that 1uF (I tried it initially) was enough to make a big
difference in HF noise stability on VB_SYS and to deal with short
droops, so 4.7uF doesn't sound completely crazy to me.  But it is quite
a difference from 22uF recommended by NXP.

- -Andy
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