Need recommended pad layout for the NRF24L01P

[Mark Haavisto]

We are a contract manufacturer. We are trying to help one of our customer's with their bare board design which uses your NRF24L01+ (NRF24L01P) that comes in a 20-pin 4x4mm QFN-EP package. The datasheet gives a mechanical outline of the part but it does not show your recommended footprint. Can you send us one? Also, regarding the exposed pad on the part, do you require the pad to be soldered to a board pad or is that optional?

[Stian Røed Hafskjold]

The recommended layout for nRF24L01+ (in the form of gerber files) is a part of the evaluation kit files, located here: www.nordicsemi.com/.../nRF24L01-Evaluation-Kit

The exposed die pad should not be connected to the PCB ground on the nRF24L01+. This is to prevent noise from entering the chip through the die pad. The pad should be covered with solder mask to prevent contact between PCB ground and the die pad.