Please confirm if the power connection is correct?

Troubleshooting
1

Chip used: SF32LB563UCN26

I. When not using the chip’s on-chip MIC and DAC

For the pins AVDD33_AUD, ADCP, ADCN, DACP, DACN, AUD_VREF, can they be left unconnected? How should they be connected to optimize power consumption?

II. The power connections for VDDIO are as follows. Is this acceptable? Are there any mutual restrictions between PVDD and VDDIO, such as PVDD must be greater than VDDIO?

PVDD — 1.8V

VDDIO2 — 1.8V

VDDIO3 — 3.3V

VDDIO4 — 3.3V

2

AVDD33_AUD requires a 3.3V power supply, with no current consumption when audio is not in use. ADCP, ADCN, DACP, DACN, AUD_VREF can be left unconnected.

There is no restriction between PVDD and VDDIO.