PCM5102A Power Supply Method

Hi, Kato-san,

If you look at the EVM Users Guide, we have tied all of these power supply pins together.

So, our official recommendation is to tie them all together. 

-d2

Hi Don-san,

Thank you for your reply quickly.
This device is able to supply 1.8V to DVDD.
So, should we also supply the power supply of DVDD and AVDD/CPVDD at that time in this case?
In addition, could you please tell us about Q2?

Best Regards,
Kato

Hi Kato-san,

You can use the LDOO to power the 1.8 V for DVDD or you can use an external supply.

The supplies (DVDD, AVDD, CPVDD) can be powered up at the same time.

Where did you see Q2?

Best Regards,

dave

Hi Dave-san,

Thank you for your reply.
We understood your explanation about Q1 and Q3.
For Q2, if we supply 1.8V or 3.3V to DVDD, 3.3V to AVDD/CPVDD using another power supply, do you have any concerns except power supply sequence?

Best Regards,
Kato

Hi Dave-san,

Thank you for your reply.
We understood it.

Best Regards,
Kato