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IWR6243: TX/RX RF transition related

Narek Rostomyan
Prodigy 15 points
Part Number: IWR6243

Hello,

1. Can you please provide information about the landing pattern (BGA to PCB transition) for the TX/RX bumps of IWR6243? Is it the same for RO3003 and RO4835 stackup as outlined in Figure 2 of the "TI mmWave Radar sensor RF PCB Design, Manufacturing and Validation Guide" ?

2. Ideally, we would like to use a different stackup. How can we obtain the HFSS models (package + die ?) that can help us in our impedance matching design? 

Thanks!

  • 0
    TI__Genius 9710 points

    Hi Narek,

    1. For the landing pattern (BGA to PCB transition) for the TX/RX bumps of IWR6243, please allow me 24 hours to look into this. 

    2. You can obtain the HFSS models for IWR6243 for testing Package to PCB simulations, if you have an NDA with TI through MySecure software or private mail communication. Kindly let me know if you are able to get in touch with regional field applications engineer for the request.  

    Regards

    Ankit

  • 0 in reply to Ankit Mohanty
    TI__Genius 9710 points

    Hi Narek,

    For BGA to PCB transition for the TX/RX bumps of IWR6243 you may follow the  "TI mmWave Radar sensor RF PCB Design, Manufacturing and Validation Guide". The IWR6243BOOST design is similar to IWR2243BOOST you can use it as reference. The TI recommended design for IWR6243 follows the 50Ohm impedance matching at the edge of the package.

    The BGA to PCB transition is the same for both the stack up but the dimensions are not the same for RO3003 and RO4835 stack up. Please follow the dimensions as listed in the figure.2 of "TI mmWave Radar sensor RF PCB Design, Manufacturing and Validation Guide" as shown below. 

    Regards

    Ankit

  • 0 in reply to Ankit Mohanty
    Prodigy 15 points

    Hi Ankit,

    thank you very much for confirming that the transitions for RO3003 and RO4835 are still the same for IWR6243. Regarding the HFSS models, we will still be interested to get access to them since we are planning to use a different stackup. We have opened a support ticket for the NDA since we do not know any local applications engineer.

    Best Regards,

    Narek

  • +1 in reply to Narek Rostomyan
    TI__Genius 9710 points

    Hi Narek,

    Sure, once the NDA is there you can access the HFSS models through MySecure software. Please let me know if you need any assistance over private conversation, I have accepted the connect request. I shall be closing the e2e thread for now.

    Regards

    Ankit