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AD9634 Differential input voltage Spec of CLK

Hello

AD9634 datasheet Figure 55  uses AD9510 for clock driver of  LVDS.

The differential input voltage spec of AD9634 is  0.3V ~ 3.6Vp-p.

The differential output voltage of AD9510 is 250mV~450mV.

Out customer  asks if AD9510 does not meet input specification of AD9634 in the case of input = 250mV.

I think that AD9634 and AD9510  are different from  the  definition of differentail voltage as attachment slide2.

Is my understanding correct ?

Please let me know your advice.

Regards,

Terumasa

Question.pptx
  • Dear Terumasa-san,

    I apologize for the slow reply.

    > The differential input voltage spec of AD9634 is  0.3V ~ 3.6Vp-p.

    Correct.

    >The differential output voltage of AD9510 is 250mV~450mV.

    No. 250-450 mV is for each leg of the differential pair. If you use a differential probe to measure the signal, the LVDS driver spec becomes 500-900mV.

    -Paul Kern