Other Parts Discussed in Thread: TAS2X63EVM
Tool/software:
Hello,
I'm using the TAS2563 QFN chip in a battery powered application and need to minimize power consumption.
After initialization of the TAS2563 including program and coeff. loading, I observe a low consumption as expected. However, after using the codec for sound playback and then going back to software shutdown, my idle consumption has increased by 0.5 mA.
The increase in idle consumption is triggered by applying TDM clock and frame sync and thus going into active state.
With a bit of trial and error I have isolated the problem to be associated with the Brown Out Prevention. If I do not enable this feature, the idle current consumption does not increase.
I have tried disabling the Brown Out Prevention when going into software shutdown, but this does not help. As soon as the feature has been enabled once in active state, I cannot avoid the 0.5 mA increase.
A software reset fixes the problem, but I'm unsure of what is being reset by this. Since it takes a long time to load the program, I can only do this during the initial power on.
Any suggestions on how I can avoid this 0.5 mA increase after first active state?
Thanks,
Ove
