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TAS5755M: PBTL mode setting

Part Number: TAS5755M

Hi team,

Regarding the PBTL mode setting of TAS5755M, the customer feedbacked that it is not necessary to set the register value in the following screenshot to work normally.

The customer's register values are as follows. How to explain this phenomenon?

! I2C Configuration file for TAS5755M in PBTL mode.
X1B 00
X06 00
X0A 30
X09 2C
X08 2C
X14 54
X13 AC
X12 54
X11 AC
X0E 91
X20 00 01 77 72
X10 02
X0B 00
X10 02
X1C 02
X19 30
X25 01 02 13 45
X07 30
X05 00

In addition to these two registers, which registers are related to the final audio output, we want to find out the internal audio path and settings.