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CC1352P: Transmitting Bluetooth at 20 dBm?

Part Number: CC1352P
Other Parts Discussed in Thread: CC2652P

Hi,

I recently picked up the CC1352P for a new project in hopes of using the advertised PA to increase Bluetooth range using the 20dBm setting. After buying parts for the project and doing some digging into antenna designed, I noticed a small note in the "Matched Balun Filter" document stating that the 20dBm PA was not a switching amplifier, and only works in TX. This brought up a few questions:

(FYI I am using BT5 for everything, so I don't have to worry about the 10dBm limit on BT4)

1) Why was this note not in the main data sheet? I may have possibly skimmed over the note, but I don't think that information is anywhere in the main data sheet or in any other supplemental data sheets except for the one mentioned above.

2) Is it possible to run a Bluetooth 5 beacon off of the 20 dBm PA? Is there reference code for this, or would I need to start from the simple_broadcaster example?

3) Is it possible and is there any reference designs for adding an external high speed T/R switch to turn the CC1352P into a half duplex 20dBm Bluetooth transciever?

4) Should I just give up and move to nRF to get high power Bluetooth transceivers?

  • Hi Stephen,

    1) What note in the datasheet are you referring to? I am not sure I understand your concern. 

    2) Yes, of course. Any of the BLE examples will support using the 20 dBm PA.

    3) All the CC1352P reference designs include a switch to select the appropriate RF port for Tx and Rx. 

    4) Absolutely not! Which nRF device supports 20 dBm by the way?

    We are on the verge of releasing a 2.4 GHz only version, CC2652P: www.ti.com/.../CC2652P

    Regards,
    Fredrik