CC3220R: RF PCB Guidelines

Hi Denny,

Usage of two 2.4GHz radios at same moment may to be issue (depending or board and case design).

You should switch your design to CC3230 QFN or CC3235 MOD. Because there devices support coexistence with other 2.4GHz radio (e.g BLE).

Jan

Hi Jan,

Thank you very much for the quick reply.

Small correction:

Our requirement is: At any point of time there would be either WiFi or BLE i.e only one RF wireless will be turned ON at a time.

Please provide us the RF Layout guidelines for placing them on our PCB.

Thanks,

Denny

Hi Denny,

I am not aware about any layout guidelines covering your case MODA + BLE. But if only one RF device will be active at one moment, you should follow RF layout recommendation from datasheet for each device. In this case is only question position of BLE antenna. Antenna should be places that there will not be load between WiFi and BLE antenna. Detail explanation can provide you TI engineers.

Jan

Hi Jan,

Thank you for the details. 

I was checking if there are any reference designs with any seperate WiFi and BLE chips on a single PCB, but couldn't find. 

Please check and kindly provide the details if there are any reference designs/boards.

Thanks,

Denny

Hi Denny,

As I remember there is one old public reference design with CC2650 + CC3200 - TIDC-BLE-TO-WIFI-IOT-GATEWAY. But I think this design will not meet your requirements.

Jan