nrf52832 module circuit design review

[sherPK]

Hello, I am working on a project which uses nrf52832 module (https://www.seeedstudio.com/MDBT42Q-nRF52832-based-BLE-module.html). I just want someone to review its circuit such as programmer, crystal and supply voltage. It is simple but I want to confirm before going to manufacturing because it takes time and cost to redo. Also, the programmer I will use is https://www.waveshare.com/arm-debugger.htm. Please mention if I have done something wrong. I appreciate your response in this regard.

Attached please find the image for your reference.

Thanks.

[Jared]

Hi,

You need to add a 15 nH inductor to the DC/DC components. Could you share the datasheet of the crystal that you're using?

regards

Jared

[sherPK]

Hello, 

I have used 10uH inductor. Should I replace it with 15nH.

Also, I donot plan to use crystal, just used it for safe side in case I need it. The link is https://www.digikey.com/products/en?keywords=535-9543-1-ND.

Regards

[Jared]

The parallel load capacitors of the crystal should be 10 pF. 

 

sherPK said:

I have used 10uH inductor. Should I replace it with 15nH.

 Reference design:

[sherPK]

Thanks Jared for pointing me to the right direction.