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[FAQ] PCM1808: Sampling rate effects on input impedance

Guru 52670 points

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Part Number: PCM1808

Hello,

Does the sampling rate impact the input impedance of the PCM1808?  The typical value is 60kΩ at 48kHz.

Regards,
Collin Wells
Precision ADC Applications

  • Hello,

    Yes, the input impedance of the PCM1808 is is impacted with changing sampling rates.  Here is a plot of the input impedance vs sampling rate.

    Regards,
    Collin Wells
    Precision ADC Applications

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