topic Re: Imx8 Demo Capacitor in i.MX Processors

Imx8 Demo Capacitor

FilippoDeveloper — Wed, 11 Nov 2020 09:01:33 GMT

Hi at all,

in the demo board and exacly IMX8QM POWER sheet, are reported some pair of capacitor in parallel connection with same value but different work voltage; i saw also the impedance comparison function of frequency but are the same, for example C372 2.2uF 10V and C378 2.2uF 6.3V why this selection? instead to use 2 capacitor of same work voltage?

Thanks

Filippo

Re: Imx8 Demo Capacitor

weidong_sun — Thu, 12 Nov 2020 02:50:17 GMT

Hi,

I discussed your question with i.MX Expert. Here are some explanations and suggestions for you:
1. For these capacitors, in your own design, you can choose either 10V or 6.3V according to the output voltage.
2. On the board, for the 3.3V IO power supply, we recommend using a 10V capacitor.

In order to unify the components on the board, we recommend that you use 10V capacitors.

[comment]
For other power supply circuits, all capacitors can be selected according to the power supply output voltage.

Hope this information is helpful to you.

Have a nice day!

B.R,

Weidong

Re: Imx8 Demo Capacitor

FilippoDeveloper — Thu, 12 Nov 2020 09:32:47 GMT

Ok, thanks for your reply. I think that double choose possibility was for a new engineering project...perhaps..

Best Regards

Filippo