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AWR2944EVM: Adding external clock to the EVB

Alexey Faynburd
Prodigy 30 points
Part Number: AWR2944EVM


Tool/software:

Hi, want to use the external clock option

Found what needs to be done on the hardware level in the datasheet. It's not clear whether there is some register that needs to be written to change the mode to External.

Thank you.

  • 0
    TI__Expert 7030 points

    Hi,

    Thanks for your question.  Someone will reply ASAP.

    regards,

    Ali

  • +1
    TI__Mastermind 30955 points

    Hello,

    There are no register writes needed. The device will automatically detect the external clock mode when you ground CLKM.

    You need to make following hardware changes.

    1. replace C108 with 0 ohm resistor

    2. Populate J13

    3. Populate R269. 

    Once the following changes are made you can feed an external clock through the SMA on J13.

    Regards,

    Adrian