Pmu Configurations - Infineon AIROC CYW20822-P4TAI040 Manual

AIROC™ Bluetooth® LE module
Functional description
4.1.1

PMU configurations

Configure the PMU correctly to ensure correct operation. The following modes of operation are supported by the
PMU:
• One external power supply or battery with external I/O supply:
• For applications that cannot support fixed 1.8 V I/O supply (see
- Connect VBATT to VDDIO
- Connect VAUX to VDDIOP
- Disable I/O supply generation
GPIO voltage = VBATT
VBATT min = 1.8 V
VBATT max = 3.3 V
Figure 9 Regular battery, External I/O supply
• One external power supply or battery with internally generated I/O supply:
• For applications that can use a fixed 1.8 V I/O supply for better power consumption or VBATT
Figure 10).
- Connect VDDIOP to VDDIO
GPIO Voltage = 1.8 V
VBATT Min = 1.1 V
VBATT Max = 3.3 V
Figure 10 Regular battery, Internal I/O supply
Preliminary Datasheet
Figure 9).
13
≤
1.8 V (see
002-38449 Rev. **
2023-08-21