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LMK03318： Comparison between Actual Measurement and Webench

Satoshi
Guru 19645 points
Other Parts Discussed in Thread: LMK03318

Is there application note or data of comparison between actual measurement and Webench for LMK03318?

Request spec is below,

・Input： 37.125MHz (CMOS)

・Output： 148.5MHz （LVDS）

The best is when data based on request spec.

Best regards,

Satoshi

  • 0
    TI__Expert 4415 points

    Hi Satoshi-san,

    I do not have data for this exact case. However, since the PLL would be operating in integer mode for this case, there should be a good correlation between the Webench simulation and the actual measurement. In general, Webench is more accurate for integer mode.

    I am attaching a phase noise plot that compares the Webench simulation values with actual data for the LMK03318 outputting 156.25MHz and using a 50MHz crystal as a source. Since the PLL is operating in integer mode and the input/output frequencies are similar, you can expect a similar level of correlation in your case.

    Regards,

    -Tim