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ADC3424: ADC signal input issue

菊井 良則
Prodigy 130 points
Part Number: ADC3424

In our equipment, we found the signal input issue in ADC3424 circuit block.

Could you give me your answer about attached our question?

Thank you.ADC Signal Input issue.xlsx

Yoshinori Kikui

  • 0
    TI__Intellectual 2280 points

    Hi Kikui-san,

    It is generally recommended that the device be powered on before supplying other pins on the device.

    What does the RF Block and Clock Buffer block output? Specifically, what is the level of the output that is going to be supplied at the device pin before it is powered on?

    Best regards,

    Drew

  • 0 in reply to Drew Harrell
    Prodigy 130 points

    Drew-san,

    Thank you for your answer.

    In our investigation, we confirmed RF block supply no output to ADC when ADC Power-off.

    About Clock block, we have already got your answer in another question.

    ('ADC3424: CLK input before AVDD supply')

    I have no problem in this issue. I will close this question.

    Thank you.

    Yoshinori Kikui