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CC1190 S-Parameter files

Uli19467
Intellectual 280 points
Other Parts Discussed in Thread: CC1190

Dear community,

does anybody have the S-Paramter files for the CC1190 frontend? I want to do some simulations and would like to use them. I am interessted in the s-parameters for the active state and for the power down state of the chip.

Thanks and regards,

Uli

 

  • 0
    TI__Mastermind 18780 points

    when using the CC1190, I highly recommend to follow TI's reference design. This design has been optimized for the best possible overall performance (both in tx and rx, gain, current consumption, harmonics, stability etc) and following this is the fastest way to a working solution.

     

    Charlie

  • 0
    TI__Mastermind 18780 points

    Also, AN094(http://www.ti.com/litv/pdf/swra356) and AN096 (http://www.ti.com/litv/pdf/swra361a) are very useful when considering using the CC1190.

    Charlie

  • 0 in reply to CHS
    Intellectual 280 points

    Hi Charlie,

     

    thanks for your answer.  Unfortunately I am not using the CC1190 in a standard application. In between the CC1190 and the SMA-Jack I will have a branch line to some RF-detection unit. So in sleep mode I want to turn off the CC1190 and use my own detector. So in order to simulate the branch line and the circuit I need the input impedances of the CC1190. Is there a chance to get some S-Paramter files?

    Thanks and regards,

     

    Uli

     

  • 0 in reply to Uli19467
    TI__Expert 4435 points

    Uli,

    More feedback.   What Charlie is saying the part is designed for limited frequency range.   It has an input impedance is 50 ohms at the operating frequency of 868MHz.    If you insert a measurement device as you mention you probalby don't won't to disturbe the power amps bias point which would cause stability issues.  So if you insert this device where the SAW filter connects you shouldn't effect the present circuit, unless you introduce consider phase differences.   If your circuit does cause a stabliity problem you will need to re-do the push pull measurements to determine where the part is stable.  This takes consierable work and equipment to complete.   Providing s-parameters would probalby not help you if you planning on imedances which are deferent than 50 ohms. 

    Good luck