L.S.
For our products we have chosen to use the RFDigital RFD22301 (previously RFD51822) product which has a nrf81522 chip inside.
Last year we discovered some issues with the module which proved to be related to the revision of the nrf81522 inside. The rev 2 chip did not have the issues (malformed packets). So we made arrangements with our supplier to only use chips with rev 2.
It turns out now that there are a quite some parties that have a big stock rev 1 chips and are still marketing rev 1 in their products as does RF Digital. Now RFDigital marks their products with production week which as it turns out does not guarantee that a later production date also means rev 2 inside. Mouser offers RFD81522 with rev 1 only. Rutronik has(had) RFD22301 with rev 2.
Now I hear rev 2 is declared obsolete by Nordic, while rev 1 isn't. The preferred rev is rev 3.
So, can anyone shed some light on this? Moving to rev 3 means which RFDigital has in its new Simblee module with an incompatible footprint so it means redesign, modifying/checking firmware for which we do not have the time.
What is the best course of action?
