• State Resolved
  • Locked Locked
  • Replies 4 replies
  • Answers 1 answer
  • Subscribers 16 subscribers
  • Views 254 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CC1352R: Power Amplifier for CC1352R in 2.4GHz Band

user3839897
Prodigy 120 points
Part Number: CC1352R
Other Parts Discussed in Thread: CC1352P, CC2590

Is there any power amplifier for CC1352R in 2.4GHz Band?

I know that CC1352P has PA. But its output pins are exclusive line for TX, not common with RX line.

Therefore CC1352P needs 3 matching blocks ( 2.4GHz RX, 2.4GHz TX with PA, Sub-1GHz).

If CC2590 is useable for CC1352R, I want to know the connection with CC1352R.

Of course, even other ICs is OK.

  • 0
    TI__Guru**** 317180 points

    You should be able to use the 2.4 GHz FEM (such as CC2590) with CC1352R but we have not looked into how this should be done. 

    But using CC1352R + CC2590 would add more complexity than using CC1352P since using CC2590 will make if fairly complex to route the sub 1 GHz path in combination with the 2.4 GHz since the CC2590 with external components take up space. 

    I would recommend using CC1352P if you need more than 5 dBm on the 2.4 GHz path.  

  • 0 in reply to TER
    Prodigy 120 points

    I appreciate for your reply.

    I intend that the components of the sub 1 GHz are not mounted on the 2.4GHz product, and vice versa.

    Thefore, the combination of 2.4GHz and sub 1 GHz is not needed.


    Is it difficult to use CC1352R + CC2590(or other PA) ?

    What should I do if I try it?

  • 0 in reply to user3839897
    TI__Guru**** 317180 points

    The placement and routing complexity still exist even if you only mount the path you are intend to use. 

    CC2590 was designed present a load that is the optimal load impedance for the CC25xx series. The CC1352R has a different optimal impedance and therefore some extra components most likely have to be placed between the CC1352R and CC2590 to ensure that the load impedance is closer to what CC1352R need. We haven't made any calculations or tests here. For rest of the components around CC2590, check the existing ref designs for this part. 

  • 0 in reply to TER
    Prodigy 120 points

    Thank a lot.

    I understood your good answer.

    And it needs to connect RX_TX(Optional bias pin)  via the connection between CC1352R and PA. It had better give up.

    I wll think about using CC1352P.