PCM6240-Q1: Input Signal

Hi,

The customer can either allow the external 10V bias and AC couple the analog inputs between ACM and 8775 

or

remove the external bias an allow PCM6240's integrated MICBIAS to serve as the mic supply. Keep the inputs DC coupled to support input fault diagnostics

Hi Daveon,

Customer feedback the circuit can work well. I am curious that's why?

What's the maximum sinewave Vpp for the input signal if customer use this circuit?

Best Regards,

Xiaowei Zhang

The max analog input voltage are listed in the datasheet.

The input signal can swing up to 10Vrms