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LMK03318: Frequency Range

Jim CHEN
Expert 4795 points
Part Number: LMK03318


Dear Team,

Currently we connect crystal(50Mhz) to clk gen’s secref p/n.

According to our crystal measure result, the Frequency tolerance range is over csystal’s spec, and I think we should follow clk gen’s spec.

So we need your help to know clk gen’s Frequency tolerance range. As below picture, which one should we refer to? 25ppm,. 35ppm.or ±50ppm ?

Thanks.

  • 0
    TI__Mastermind 32575 points
    Plesse review this app note to understand the pullable crystal specifications that govern the crystal frequency offset (ppm) from nominal frequency by setting the programmable cap load internal to the LMK03318 crystal inputs.

    www.ti.com/.../snaa281a.pdf

    More details of the crystal frequency margining usage & operation can be found in the datasheet applications information section and EVM user's guide.

    Regards,
    Alan