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possible error in CC2431 + CC2591 reference design ?

MartinNovak
Prodigy 10 points

Other Parts Discussed in Thread: CC2591, CC2431, CC2430

I am working with the CC2431 + the range extender cc2591. I made an exact copy of Ti reference desing and it is not working at all. The CPU is working correctly, but no RF signal is transmited. I have found that the CC2591 bias resistor R151 in schematics is according the reference desing supposed to be 4k3 1%. With this value, nothing works , but when I replace it with 43k 1% all starts working properly. Anyone has same experience ?

  • 0
    Intellectual 500 points

    Hi Martin!

    You mentioned that you implemented an exact copy of the reference design. Did you use also the same layout? I have a implementation that differs partly from CC2430 + CC2591 RD and output power from antenna is even lower than in design without CC2591. We will test yout solution soon. I doubt it a little bit but hopefully that might be the solution.