Description of test phenomena:
1、SDIN pin has no signal input.
2、LRCLK and SCLK signal input is normal.VR_DIG voltage 1.496V,GVDD voltage 5.10V,AVDD voltage 5.18V.The ripple was less than 12mV.
3、The impedance of SPK is 8 ohm.PVDD voltage 24V.
4、Adjusting gain has no effect on idle noise.