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AFE8000: Termination of unused analogue RX/TX pins

Richard Sharp
Prodigy 10 points
Part Number: AFE8000

Tool/software:

There is information on this forum for how to terminate digital IO pins. However, what is the recommended termination for unused analogue TX and RX pins? Should we use 50ohm termination, ground or let them float?

Thanks.

  • 0
    TI__Genius 17831 points

    Hi Richard,

    The recommendation termination for the RX inputs and TX outputs is given in the datasheet, in "Table 5-1. Pin Functions RF Interfaces". 

    For unused RX and FB channels you can leave unconnected. For the TX outputs you can connect unused channels to 1.2V (VDD1P2TXOUT). 

    Regards,

    David Chaparro