Troubleshooting
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20
SLAU708 – March 2017
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TAS5782M Evaluation Module
3.7.3
In-System Tuning
Even if the device is integrated in the end application, it is still possible to make fine adjustments with the
help of In-System Tuning. Like the In-System Debugging above, this is done by connecting I
2
C signals
from PPCMB to the TAS5782M device in the end-system.
Figure 20. In-System Tuning
4
Troubleshooting
4.1
Power Cycle
To perform a power cycle disconnect both the USB cable and the power supply from the board.
4.2
Changing PPCMB Sample Rate
Older PPCMB devices may require a firmware update to support 48-kHz audio over USB. Instructions for
updating the PPCMB firmware is found
here
. Please note this update applies only to audio over USB.
96-kHz audio over USB is not supported, for now.
