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nRF52820 IPD

mtorti

Dear Support Team,

We are migrating our designs to nRF52820. With previous IC we saw that Johanson has IPD for atenna filter + matching circuit (e.g.2450FM07A0029), but not for the nRF52820. Do you have any known IPD that works well with nRF52820?

Also, our designs are 2 layers pcb. Is the recommended layout on nRF52820 datasheet compatible with 2 layers (from RF performance point of view)?

Thanks in advance.

Best regards.

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  • 0

    Hi,

     

    2450FM07A0029T is for nRF52832/nRF52810/nRF52811. 2450FM07A0037T is for nRF52840 and nRF52833. I am not sure whether this has been tested yet, but as the radio, package and maching is similar I would not expect large differences.

     

    2-layer PCBs with our 8dBm radios is generally a bad idea. Due to the poor grounding of the IC in such boards you might see issues with excessive TX harmonics and modulation characteristics. I would not recommend it, especially with the integrated filter as you then have no components to fine-tune if you see bad spurious rejection.

     

    Best regards,

    Andreas

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  • 0

    Hi,

     

    2450FM07A0029T is for nRF52832/nRF52810/nRF52811. 2450FM07A0037T is for nRF52840 and nRF52833. I am not sure whether this has been tested yet, but as the radio, package and maching is similar I would not expect large differences.

     

    2-layer PCBs with our 8dBm radios is generally a bad idea. Due to the poor grounding of the IC in such boards you might see issues with excessive TX harmonics and modulation characteristics. I would not recommend it, especially with the integrated filter as you then have no components to fine-tune if you see bad spurious rejection.

     

    Best regards,

    Andreas

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