TAS5805M: Clock fault meaning

Hi Team

My cutomer use 20V as PVDD, and had work before.

But for now they have chance have FAULT situation and have so sound. I ask them read FAULT register, the 0x71 bit 2 CLK_FAULT_I happen.

Does this clock fault mean that I2S BCLK have wrong frequence? how is the range to detect the clock wrong?

Will this FAULT will cause PWM stop?

Thanks

BR

Bruce