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CC2640R2F-Q1: Output Power

user6299068
Prodigy 50 points
Part Number: CC2640R2F-Q1

I would like to ask you support regarding CC2640-Q1 output power.

1) According to doc SWRS201A –JANUARY 2017–REVISED AUGUST 2017 chapter 5.7,  it is available to optimize output power, from -21 dBm to +5 dBm.

    Which resister should we optimize?

2) From your experience of view, is it feasible to output radio wave power less than 35uV/m at below condition?

3) If Return Loss = 6dB, is it feasible that less than 35uV/m from your experience point of view?

  • 0
    TI__Genius 15590 points

    Hello,

    1. You can refer to this document for information on Optimum Load Impedance:  

    I have looped in one of my colleagues to comment on 2 and 3. Can you please re-attach the image that went with question 2? It didn't upload properly. 

    Thanks,

    Alexis

  • 0
    Prodigy 50 points

    I would like to ask you below 4 items regarding “ CMD_SET_TX_POWER”.

     

    1 ) Is it feasible to control output power Less than 35uV/m at 3m from Inverse-F-Antenna if Return Loss is 0dB from your experience point of view?

      

    2) If Return loss is 6dB, is the above feasible?

      

     

    3) According to TI doc “ swcu117i “ , CMD_SET_TX_POWER as command ID 0x0010.

                  3-1)  Where is described IB meaning?

                  3-2) PreAmp gain is programable by Bit 6-7.

                         Where is describe bit and gain?

                                Bit6/7:    0/0 -> ?dB

                                              0/1 ->  ?dB

                                              1/0 -> ?dB

                                              1/1 -> ?dB

     

    4) Which is default value if we did not write to resister?

  • 0 in reply to user6299068
    TI__Mastermind 27145 points

    Hi,

    It seems you already contacted me through a direct email. I already replied. Please check your email.

    So, we can use email to clear these issues.

    Thanks,

    PM