DP83867IR: CLK_OUT Level

Hi Michael,

The peak to peak of CLK_OUT should be have the same peak to peak voltage as XI pin. It should have the Peak to Peak voltage from 0 to VDDA.

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Regards,

Hillman Lin

Hi Hillman,

Thanks for your feedback.

We will use Crystal not Ext. Oscillator.

Also we will connect CLK_OUT to 1.8V I/O port of external SoC.

So what is the PEAK TO PEAK of CLK_OUT when using crystal?

Can I use it with the above our configuration?

Best Regards,

Michael

Hi Michael,

Sorry for the confusion. CLKOUT is depended on the VDDIO. Whether you are using Crystal or Oscillator, as long as your VDDIO is 1.8V, your CLK_OUT output should be 1.8V peak to peak.

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Regards,

Hillman Lin