• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 53 subscribers
  • Views 184 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.

LAUNCHXL-CC1352R1: Front-end target load impedance & Balun

Pengcheng Liu
Intellectual 590 points
Part Number: LAUNCHXL-CC1352R1

Hi TI Expert,

I just simulated the CC1352 Launchpad sub-1 front-end of the reference design, but the S11 looks not correct (looks much higher than I expected).

Could you please help to check if there is an issue with my simulation?  (according to the swra640,  the differential impedance is 37-j8 Ω at 898Mhz).

Thank you very much,

Kind regards,

P

  • +1
    TI__Guru**** 317180 points

    - Please use a differential port instead of two single ended as indicated below:

    - Use Murata models and not ideal/ lumped models

    - Include the layout in the simulation sine this has a fairly large contribution to the impedance seen into the network.