nrf52840 2-layer reference design

Question

Hello, 
 I'm designing a board in which cost is a very important factor. I don't need a lot of the GPIO pins of the nrf52840. Are there any 2 layer reference designs available for the nrf52840? 
 I also can't find the download links for the nrf52840 reference design Altium files. 
 Kind regards,
Daan

Jørn · Accepted Answer

Hello Daan 
 Unfortunately, we do not have any 2-layer reference designs for the nRF52840 at this time. Doing a 2-layer design can be very difficult though as it, at least as of today, only comes in the QIAA package, so routing the traces from the inner row of contact points can be a problem. For more information on packages, please contact your regional sales manager. If you do not know who this is, please message me your location and I will provide you with contact details. 
 The hardware files for the nRF52840 preview kit can be found at the bottom of the downloads tab of the nRF52840 preview kit product page. 
 Best regards 
 Jørn Frøysa