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CC1311P3: Is there a guide to implement a single-ended RF frontend

Talha Duman
Prodigy 10 points
Part Number: CC1311P3

Hello, I have been developing a project with the LP-CC1311P3 recently. We, as a company, decided to push the project forward and create a custom product based on CC1311P3.

We only need 10dBm power. However in the LP-CC1311P3 reference files, there are two RF paths for 20dBm and 14dBm. In CCSTUDIO-THEIA, there is an option for internal-biased singled-ended front-end.

So how can I implement this single-ended internal-biased front-end?. I could not find any documents related. Is there a tool or a reference design?

Thanks

  • 0
    TI__Genius 11215 points

    Hi,

    You can select the front-end using CCS as you show in the screenshot.

    The CC1311P3 has a programmable output power (PA table), so to output +10 dBm you can select this output power from the PA table for the CC1311P3 (for 868/915 MHz operation). More information is available in Section 10 of SWRA640 (CC13xx/CC26xx Hardware Configuration and PCB Design Considerations): https://www.ti.com/lit/swra640 - the values for each PA table setting have already been found, however.

    If you want to evaluate the RF peformance only you can use SmartRF Studio 7: https://www.ti.com/tool/SMARTRFTM-STUDIO to more easily configure the device in the mode you wish and then set the device for Packet TX/RX or continuous TX/RX along with the PA table setting for +10 dBm.

    You can also refer to this SimpleLink Academy training for getting started: https://dev.ti.com/tirex/explore/node?node=A__Aep5jzoC8OZsth7GqtnVtw__com.ti.SIMPLELINK_ACADEMY_CC13XX_CC26XX_SDK__AfkT0vQ__LATEST 

    For the single-ended network, Section 2 of SWRA640 gives an overview of the different configurations and BOMs; you will need to modify the PCB if you wish to do this as a LaunchPad does not exist for single-ended operation.

    From a SW development standpoint, you should be able to modify the RF front-end configuration at a later date (for use on your custom PCB) and use the LP-CC1311P3 platform as-is if you cannot modify the BOM.

    Regards,

    Zack