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Original question:

CC1125: CC1125 receiver selectivity problem - ETSI 300 113 compliance issue

CC1125: EN 300113, EN301166, AS/NZS 4768 compliance

JBD26
Prodigy 170 points
Part Number: CC1125

I've been testing the cc1125 to see if it has a chance of passing  EN 300113, EN301166, AS/NZS 4768. But then I saw Sverre's post that states the CC1125 will not pass EN 300 113 because of the intermodulation test. I am testing between 450 - 470MHz and have a FEM with internal LNA. When I measured intermodulation according to En 300113 it failed by about 5dB at 2.4kbps, 5kHz BW,+-1.2kHz deviation. ACR looks good enough but Blocking at 1MHz is also 5dB off. Also, I can't afford to drop the data rate much lower.

Has anybody managed to get the CC1125 through EN 300113 or should I give up now and look for a different solution? Are there any other parts in TI's portfolio that can build a radio to meet the stringent receiver tests of EN 300113, EN301166, AS/NZS 4768?

  • 0
    TI__Mastermind 29560 points

    Hi,

    According to the CC1125 datasheet which is based upon official verification tests, CC1125 will pass EN 300 113 in high performance mode in the frequency band 410-480 MHz.

    You might need to reduce the data rate to pass the stringent receiver tests. Please test with 1.2 kbps (CAT 1 settings) PHY (or 300 bps PHY) to see if this helps.