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DP83822H: Rbias resistor function consult

Part Number: DP83822H

Hi team,

It is nice to know you here. My customer is using DP8322 with Ribas value not equal to 4.87kohm. And they find that analog loopback failed in this situation. Could you please help share what is the function of this resistor? Why this resistor will affect the analog loopback? Thanks.

BR,

Charles Lin