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CC3220MOD: CC3200MOD versus CC3220MOD

Avi Wittenberg36
Prodigy 50 points

Part Number: CC3220MOD
Other Parts Discussed in Thread: CC3200, , CC3200MOD, CC3220SF

Hi,

We are starting a new Wi-Fi based design and since we want to avoid the certification process we are thinking or using a module. Our current product already has the CC3200 as a discrete solution.

  1. What are the main differences between the CC3200MOD and CC3220MOD?
  2. What is the recommended module for new designs and why (CC3200MOD/CC3220MOD)? From the price point there seems to be a difference of tens of percents.
  3. Our current design we are using the CC3200 (none module) and have the FW written for it. I understood that the FW porting is supposed to be simple. Is it the same process for both modules?
  4. Does the CC3220MOD has an internal antenna? I understand that the CC3200MOD doesn't have an external antenna. How can we add an antenna without losing hte module certifification?
  5. Our power consumption budget is very low. Our main use case is waking up the Wi-Fi device every 15 seconds, loading from the flask, transmit and go back to hibernate mode. If we could have shorten the period of loading the flash, we could have save power. Does the CC3220MOD with the internally flash has a considerably faster access to the memory that will enable us to wake-up and go back to sleep faster and by that save battery?

Thanks in advance,

Avi.

  • 0
    TI__Mastermind 48751 points

    Avi,

    1. The CC3220MODSF is a flash-based MCU with an integrated 1MB of Flash, has more security features, and is more low power. The biggest difference is that the CC3220 is part of the SimpleLink MCU platform. For more information of Gen1 to Gen2 enhancements., watch this video from 11:07.

    2. The answer to this question would depend on the application of the device.

    3. Yes, it is basically the same process.

    4. The CC3220MODx and CC3220MODAx have four total variant as there is an S and SF version. The two MODx versions require an external antenna. The two MODAx versions versions contain an integral antenna. The CC3220 is certified for a 1.9dB chip antenna. If you change the antenna type, then this will automatically trigger a C2PC and will not be able to re-use all the FCC certification data. You should check with your regulatory house on what tests would need to be repeated. 

    Refer to CC3220MODSF DoC, which includes a table that lists the antennas approved for use with the CC3220MOD module. 

    5. If you refer to the Power-Up and Reset Removal Timing Requirements sections on both the 3200 and 3220 datasheets, you will see that it will take less time to wake up and load the app code with the CC3220SF. 

    Please click “This resolved my issue”  button if the answer provided resolved your issue.

    Regards,

    Seong

  • 0 in reply to Seong Kim
    Prodigy 50 points
    Seong,

    Many thanks for the prompt response and answers. It is very helpful.

    Regarding the certification and to be on the safe side, as long as we will follow the design recommendation for the antenna/RF design we will not have to perform the RF measurements?

    I have one more question regarding the AP mode. Is it possible to use the CC32x0 as a repeater for extending the Wi-Fi coverage. We have a specific use case for that and I am asking myself if the face the the CC3200 can support only 1 STA as AP mode will not enable it to act as a repeater.
    What is your view on using the CC32x0 as a repeater? Is if possible to use the device for Wi-Fi mesh?

    Thanks again,
    Avi.
  • 0 in reply to Avi Wittenberg36
    TI__Mastermind 48751 points

    Avi,

    Even after following the hardware design guide and using the recommended antenna, it is still good practice to perform RF measurements to check if your board needs any modifications.

    I forgot to mention one of the most important differences between the CC3200 and 3220, but the CC3220 is able to support up to 4 stations when in AP mode.

    Regards,

    Seong