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CC1350: Propriatry 2.4GHz with MSK modulation (similar to the CC2500)

Part Number: CC1350
Other Parts Discussed in Thread: CC2500, CC2650, CC1310

Hi,

I would like to use CC1350 for BLE and proprietary 2.4GHz communications.

Currently I'm using the CC2500 for the proprietary with MSK modulation, and would like to do the same with the CC1350.

In addition, I also would like to have a subG network as well, so that the CC1350 will have BLE, and 2.4GHz and subG propriatry networks.

Is that possible?

Thanks, Isak.

  • Hello Isak,

    On CC1350 device, we currently support sub-GHz proprietary network and BLE in 2.4GHz band. 

    If you are looking for implementation of proprietary protocols in 2.4GHz band, it is recommended to use CC2650 for BLE and proprietary protocols in 2.4GHz band and CC1310/CC1350 for sub-GHz band. Is is possible to program CC2650 to communicate with CC2500 programmed in MSK modulation.

    Regards,

  • Thank you SVS,

    So you're proposing a two chip solution 2650 and 1310, right?

    Looking at the 2650, I didn't see that it supports the MSK modulation, but maybe I've missed that. It's the same 2.4GHz architecture as the 1310/1350, no?

    Is it possible to program the RFcore processor?

    If i'm gonna go for the two chip solution, maybe it would be better to use CC1350 for the BLE+Sub-GHz and the CC2500 for the proprietary communication.

    Does it makes sense?

    Thanks, Isak.

  • Hello Isak,

    MSK can be implemented on CC2650 as FSK with modulation index of 0.5. The performance may be compromised slightly but the link will work.
    CC1350 RF front end is tuned for sub-GHz band and the performance on CC2650 is better compared to CC1350 in 2.4GHz band. Please refer to the datasheet for details on BLE performance on CC1350 vs CC2650. If the performance numbers meet your requirement and it fits better in your application, CC1350 can be used for sub-GHz+BLE in 2.4GHz band and CC2650 for proprietary 2.4GHz.

    Regards,
  • Hi,

    I'm currently experimenting with the CC1350 Launchpad board.

    Using SmartRf Studio 7, I'm trying to configure the CC1350 to send/receive proprietary 2.4GHz packets.

    In the SmartRf, I chose the "proprietary mode". While trying to set the frequency to 2450MHz, for example, I'm getting a errors for the CMD_FS and CMD_PROP_RADIO_DIV_SETUP commands.

    Is that the way the proprietary 2.4GHz should be selected? Does the CC1350 only support <1GHz proprietary?

    If using the CC2650 for the proprietary 2.4GHz, can it be done with the SmartRf program? Seems that there is no such an option there (just BLE and 802.15.4)

    Thanks, Isak.

  • Isak,

    Did you ever get an answer to the question: "Does the CC1350 support proprietary 2.4 gHz operation?"

    Thanks,

    Jack