Can you help me check if it is right that the wires connect to the nrf52840 chips?

[lgs]

Hi Team,

I try to design a PCB based on nrf52840 chips, can you help me check if it is right?

Something like Power supplement, SPI interfaces, and debug and programming interfaces etc.

Best,

Gaosheng

[Marjeris Romero]

Hi Gaosheng,

Yes, we can help you reviewing both your schematic and layout files. To do this it's better if you share your project files. If you don't want to disclose the whole design you can open a new private ticket and share your project files there.

I also recommend to familiarize yourself with the 'Reference circuitry' section in the nRF52840 PS and try to copy the reference design and layout from it to ensure optimal performance: https://infocenter.nordicsemi.com/index.jsp?topic=%2Fps_nrf52840%2Fref_circuitry.html&cp=4_0_0_6_2

Best regards,

Marjeris

[lgs]

Hi Marjeris,

Do you know where to download CADs of nrf52840 chips?

With best regards,

Gaosheng

[Marjeris Romero]

You can download the nRF52840 QIAA reference layout from the nRF52840 product page on nordicsemi.no under the tab 'Compatible downloads'.

The files are Altium files. If you don't have an Altium license you can use use a free 6-months trial of Altium Viewer to review the files. And PDFs are also available in the downloaded folder.

[lgs]

Hi Marjeris,

I have updated my design, I re-upload my schematic file here: www.dropbox.com/.../schematic.pdf

Could you help me review it again?

With best regards,

Gaosheng

[JONATHAN LL]

Hi Gaosheng,

Looks like you have followed configuration 6 of our ref design for the schematic. Looks OK, but have one comment, consider adding a matching circuitry for the antenna.




Remember to check the reference layout files as well to se what we recommend for best possible outcome.
You can download the files here: Compatible downloads - nordicsemi.com 

Regards,
Jonathan