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DP83848T: Power-up Issue

Part Number: DP83848T

Hello Guys,

Our customer is using DP83848TSQ and wanted to know if the power up behavior of the device (see attached image) is normal.

They supply the DP838448TQ with 3.3V +-0.15V.The voltage never exceeds the limit of 3.6V and is only below 3.0V if no supply is used. During powerup the voltage is between 0V and 3.3V for a maximum of 10ms.
From the time the 3.3V is reached it takes 168ms until the clock and MDC start to oscillate.