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AD9163- recommended LDO for 1.3V

Question asked by Eli.O on Jun 27, 2018

I want to use the AD9163 in 1.3V mode (overclocked) to the VDDx (as described on the top of page 5)

In the datasheet the requirement is for -/+2% for this voltage.

 

Questions:

1. what is the load change that the LDO will see from the DAC ? I need it to select the required "load regulation" spec for my LDO. 

2. If I use the 1.3V for the serdes as mentioned, give that my FPGA's serdes is 1.2V , is this ok or will there be a problem?  if so, what do u recommend to do?

3. can I use the same 1.3V LDO to also supply DVDD or will it impact performance or some other problem?

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