Hi,
we are making our second custom PCB board using CC3235MODS.
The first board, we followed TI example and used 4 layers: Top (1), GND (2), Power (3), Bottom (4).
this works fine.
now, we have second revision that we need to add and route additional signals outside of CC3235MODS.
so we are thinking that we will make a 5 layer board as: Top (1), GND (2), Power (3), Signal (4), Bottom (5).
please note that the Signal layer 4 only used for I2C, CAN differential wires and stayed away from CC3235MODS.
we will follow all the layout guideline for RF signal (pin 31), and the following recommendation.
Can you please kindly confirm if this additional Signal layer (4) is acceptable?
BTW, what is the reason why TI only mention 2 or 4 layer PCB for CC3235MODS?
Thanks and Best Regards,
Henry