Question of a part of i.MX6DL(SABRE BD)

[inhojeon]

Hi, all.

I wonder a part of below circuits.

(That is 4 page SABRE BD circuits of CPU Bd about  i.MX6 Dual lite.)

'C2' is '220uF/25V Electoltytic-capacitor'.

I think '220uF' is too many value.

Is it special reason to use '220uF Elec-Cap' for 'C2'?

And, Is it possible '100uF' of '47uF'  for 'C2'?

Please, Infome me that reason.

Best Regards,

Inho Jeon.

[igorpadykov]

Hi Inho

seems 'C2' could be reduced if quality power supply

is used (on J8 DC_JACK, sch-27767),  this can be evaluated with

oscilloscope measuring ripples,  <5% would be sufficient.

Best regards

igor

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