Reference layout

[ErnestoELC]

Hi,

I have a question regarding the layout reference designs for the nRF52840. The traces on the top layer are running in parallel with the adjacent layer (2) for most of the fanout. I am concerned about coupling between the lines. What is the reason behind this design choice? 

Thanks in advance.

[dejans]

Hi,

There might not be some special decision behind this particular design choice. In practice, you should not experience any problems related to the coupling. 

Best regards,
Dejan