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AD9371 Power Supply Sequencing

Question asked by RMahar on May 8, 2017
Latest reply on May 12, 2017 by sripad

What are the power supply sequencing requirements for the AD9371?  The datasheet specifies that the 1.3V digital and analog supplies come up simultaneously, followed by the 3.3V and 1.8V.

 

The evaluation board has the 1.3V analog and 1.8V turning on simultaneously after the 1.3V Digital.  What is the correct sequencing requirements.

 

Also, are there any concerns over clocks being present prior to the 2.5V IF voltage being applied?

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