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Original question:

LMK05318B: configuration for best jitter performance

LMK05318B: Phase noise improvement

Alberto Fuggetta
Prodigy 40 points
Part Number: LMK05318B

Tool/software:

In reference to the related question, is there a way to improve the phase noise at 50 kHz offset without degrading the jitter?

Thanks

  • 0
    TI__Genius 16495 points

    Hi Alberto,

    If you are referring to the 250 MHz plot I sent in the linked e2e thread, then it will be hard to further optimize the jitter. With those APLL loop filter settings, the BAW VCO is the dominating noise in the 50 kHz offset region.

    What is the spec you are trying to reach?

    Regards,

    Jennifer