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Original question:

CC1350: compared to CC1352x

CC1352R: Dual Antennas

Devin Murphy
Intellectual 430 points
Part Number: CC1352R
Other Parts Discussed in Thread: LAUNCHXL-CC1350,

The CC1352x seems to have removed the need for an external RF switch like the XMSSJE3G0PA-003 that was used on the LAUNCHXL-CC1350 by providing physically separate differential RF ports for 2.4GHz and Sub-gigahertz on the chip, is there any issue with having antennas connected to both ports at all times?

The radio core can only actually send/receive a packet on one port at a time correct?

  • 0
    TI__Guru** 106705 points
    Hi Devin,

    Your observation is correct, and it is possible to have dedicated antennas for the two frequency bands. Another way to go is to combine the two paths to a single dual band antenna as on the LAUNCHXL-CC1352R1. That board is currently using a SPDT switch, but the next revision will replace this with a passive diplexer.

    The radio core can only operate at a single frequency at a time.

    Regards,
    Fredrik