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Power sequence of AD9887A

Hello all,

Please let me know your advice about power sequence of VD, VDD and PVO.

Especially, please let me know your advice about power up of PVO (Clock Generator Power Supply).

Best Regards,

Hello,

First of all the AD9887A is not recommended for new designed.  I would look at the ADV7842.

http://ez.analog.com/docs/DOC-3037

All 3 power rails can be brought up together.  PVD must be keep every clean to control PLL stability.  All 3 rails can be generated from LDOs with PVD having a separate LDO from VD and VDD

  • Hello GuenterL,

    Thank you for your answer.

    Best Regards,

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