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CC2674P10: Power table between 10-14dBm.

Albin Zhang
Expert 6250 points

Part Number: CC2674P10

Tool/software:

Hi There, 

I know there is no CZed power table between 10~14dBm. 

I would like to ask customer to try to tune the bit. 

could you please suggest which bits customer should try?

BR. Albin

  • +1
    TI__Mastermind 20115 points

    Hi Albin,

    The 2.4 GHz, +10 dBm design cannot exceed +10 dBm due to using a VDDR bias.

    For the 2.4 GHz, +20 dBm design - that is supplied with VDDS. However, when the device is not in saturation (i.e. lower PA gain settings) the device-to-device variation in output power greatly increases, so below +14 dBm it becomes more difficult to achieve a consistent output power across a device population.

    Section 10 of SWRA640 (CC13xx/CC26xx Hardware Configuration and PCB Design Considerations): https://www.ti.com/lit/swra640 details the process of finding new PA table settings. Without measuring a large enough number of devices it is not possible to know what the values should be.

    As the +14 dBm setting is 0x1b27d6, decreasing the setting from this point is recommended; the +10 dBm design uses VDDR so the PA table settings from that design are not relevant.

    Regards,

    Zack