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LMX2820EVM: how to boot the LMX2820

Chen Alex1
Genius 3995 points
Part Number: LMX2820EVM


Tool/software:

hi sir

 how to generator the 1.0994Ghz, when I input the 76.8MHz

how to setup the GUI? Thanks

  • 0
    TI__Mastermind 29542 points

    Hi Chen, 
    The easiest way is to input your OSCin frequency and then input the RFout frequency you wish to generate - the GUI should automatically update the VCO frequency and divider value accordingly. 

    You will need to check that the CAL_CLK_DIV, FCAL_HPFD_ADJ, FCAL_LPFD_ADJ values are set accordingly though. 
    TICSpro will automatically highlight them red/yellow if configured inappropriately. 

    Best regards, 

    Vicente 

  • 0 in reply to vicente flores prado
    Genius 3995 points

    HI Vicente 

    The following are the problems currently seen when using LMX2820EVM. Please help to confirm whether there is an error in the settings?

 

When OSCIN is set below 100MHz, SA will not receive output.
Doubler sets x1 on the SA side and will not receive output.

  • 0 in reply to Chen Alex1
    TI__Guru** 110680 points

    Hi Alex,

    You need to program all registers once.

    In the menu bar, USB Communications --> Write All Registers