CC2538: RF Lines unused

Saira Shaikh

Part Number: CC2538

Tool/software:

Greetings of the day!

In a case where the RF transceiving lines of RF_P and RF_N are not being used, is there a design suggestion for those pins or we can keep it floating?

Thanks in Advance!

over 1 year ago

+1 Jake Pulliam over 1 year ago

TI__Expert 6520 points

Hi Saira,

That is not a use case that we've evaluated, If there's no chance that the radio can transmit then I think it's ok to leave the outputs unterminated.

BR,

Jake

0 Saira Shaikh over 1 year ago in reply to Jake Pulliam

Prodigy 170 points

Thank you.

0 Saira Shaikh over 1 year ago in reply to Jake Pulliam

Prodigy 170 points

I had a query regarding using CC2538 without RF.
In a case where we are not using the RF application, we can still properly develop an application with other protocols (SPI, I2C, UART, etc) on CC2538. Basically, can it be used as a Non-RF microcontroller?

Thanks in Advance!

0 Jake Pulliam over 1 year ago in reply to Saira Shaikh

TI__Expert 6520 points

Hi Saira,

Yes this should be fine. You would just leave the RF core clock gated (powered down).

BR,

Jake

0 Saira Shaikh over 1 year ago in reply to Jake Pulliam

Prodigy 170 points

Thank you so much for the confirmation.

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CC2538: RF Lines unused