Hello,
I am designing a circuit using the PCM2906C and in the eval circuit I see that the suspend signal from the codec is connected to the enable circuit of the regulator and this same circuit powers the input amplifiers. If the IC goes into suspend after 5ms of inactivity on the USB line, and USB activity is what wakes it up, how do the input lines have power in their OP2353UA and how does the IC know when audio is coming in to be processed?
Thanks,
Adam