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Power control of DAC(AD9787)

Question asked by jhshin on Oct 7, 2015
Latest reply on Nov 20, 2015 by larrywelchusa

My customer is trying to prevent abnormal signal output in DAC analog output when DAC is abnormal conditions such as power-up or non-configured.
So, She plans to separately control digital and analog power supply of DAC as below.


Step 1. Digital power-up of DAC(Analog power is not supplied)
Step 2. Stand by about 4~6 sec by system boot-up
Step 3. Set register in DAC
Step 4. Analog power-up of DAC


Is there any problem with the DAC if she uses the procedure as above?
Is there damage to hardware of the DAC If system operation is stopped in step 2?