Hello All,
I am using a PCM1781 in a consumer audio application that has a standby requirement.
The design pulls power from a 5V regulator I have running the 1781 and I will hear an audible pop through my amplifier. I think I'm looking for a solution that soft starts, soft powers down the 1781.
Has anyone dealt with a similar problem?
What was the solution.
Details- the input from the PCM1781 is from a PurePath wireless CC8520.
I don't think that the CC8520 is the problem. I have successfully been able to delay the PurePath turn on, but the problem still persists. I have also independently cut power to the wireless section (disable 3.3V supply) and the problem still persists.
This setup has been great- and I have used it on a couple of other products without having to go to standby.
Thanks,
Justin