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TAS2557: TAS2557 cal command parameters questions

Part Number: TAS2557

customer reported that they do the "cal command" once the abnormal sound in TPA2557. in "cal command",customer get these 3 parameters abnormal in RMS_POW=0, T_limit=0  and SPK calibration fail.

Questions:

1) what is the RMS_POW and T_limit parameters refer to?

2) what is the scenario makes the problem happening?