Dear Nordic Engineers
The following files is our customer's hardware design. Please help me review them, and if it has some unreasonable design, please give me some good suggestions.
Best regards.
Hannibal
Dear Nordic Engineers
The following files is our customer's hardware design. Please help me review them, and if it has some unreasonable design, please give me some good suggestions.
Best regards.
Hannibal
Hi Hannibal,
G59 feedback:
- in the schematic both C9 and C53 are 1uF, but should be 100nF. 
See our reference design for value https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/ref_circuitry.html?cp=5_2_0_52_3#schematic_wlcsp_ciaa_ldo
- The layout does have some deviation from our reference design, this will likely effect what exact values is needed for the matching components on the RF path for best possible results. The area from the center ground pad area, is in our design connected directly to the top layer GND, this is to improve ground conditions and reduce return paths. 
Here it is circled showing in our design. Here is the area of customer design. There is not much space so it can be difficult to achieve but we still recommend to follow our design if possible.
Feedback on the G65:
- Layout for the antenna and SW5 is close, this can effect the antenna so make sure that they are aware of what they are doing. Might need to tune the antenna due to the switch. 
The rest looks ok.
Regards,
Jonathan