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IWR6843: Customer product certification issues

Wolfgang Wendler TI
Intellectual 2310 points
Part Number: IWR6843

Please forward to Adrian Ozer.

Adrian,

Please use this thread to continue supporting my customer.

Thanks and regards,

/ Woflgang

  • 0
    TI__Genius 17265 points

    Hi Wolfgang,

    I have passed this thread along, but please be aware that Adrian is out of office until Monday, 1/16. 

    Best Regards,
    Alec

  • 0
    Prodigy 10 points

    Hi Alec/Adrian!
    please let me know if you have all information about our problem from Wolfgang ?
    We are actually performing certifications test at 2 different testhouses, RISE (on a complete product) in Sweden and CETECOM (radar module) in Germany. The later one has just started, so we expect they will find same issues as RISE soon....
    We are starting our volume production in 2 weeks from now 

    Cheers/Fredrik Huus

  • 0 in reply to Fredrik Huus
    TI__Mastermind 30025 points

    Hello,

    Sorry for the delay. Based on your chirp configuration, it seems like both failures are related to the test setup.

    Regarding the 106GHz and 109GHz peaks, this frequency does not appear to be coming from the radar. It is not a multiple of the synthesizer frequency or the fundamental RF frequency of their chirp configuration, so it cannot be a harmonic of the synthesizer or the fundamental chirp frequency. If the device is run with the TX turned off, do they still see these peaks? Does the frequency of the peaks change if they change the start frequency and bandwidth of their chirp? 

    Regarding the 6GHz OBW measurement, this is not possible. The radar is not capable of generating a 6GHz chirp. This is most certainly due to the harmonic mixer or something else in the test setup. 

    Regards,

    Adrian