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CC1350: Single-ended load impedance

Yasin Kurt
Prodigy 25 points
Part Number: CC1350


Hi,

What is the single-ended load or optimum load impedance of CC1350 at 433MHz and 2.4GHz? 

Thanks,

Yasin

  • 0
    TI__Mastermind 39860 points

    I know this is long overdue, but we measured the single-ended load impedance @433.92 MHz today so I am posting the finding as this might be of interest to others. The optimum impedance, as seen from the RF port towards the antenna, is plotted in the attached Powerpoint. If you are going to use the same ports for RX and TX you need to find an impedance that gives decent sensitivity and output power (that is, you cannot optimize for both). As an example, if the impedance is 50 ohm you get approx 10 dBm output power and -107 dBm sensitivity.

    Single Ended Load- and Source Pull Measurements 433MHz.pptx