Functional Description; Power Management - Infineon AIROC CYW20822-P4TAI040 Manual

AIROC™ Bluetooth® LE module

Functional description

4 Functional description
The CYW20822-P4XXI040 module is based on the CYW20822 SoC, which includes a Bluetooth® 5 solution and an RF
wakeup receiver. The block diagram of the CYW20822-P4XXI040 module is shown in Figure
Figure 8 Module block diagram
4.1

Power management

The power management unit provides I/O power supplies to the CYW20822 module. PMU generates power supply
outputs: VDDIOP, and an auxiliary supply VAUX used internally by the PMU (refer to
Table 4 PMU external pins
Pin
V
BATT
V
DDIOP
V
AUX
V
DDIO
The PMU provides multiple brownout interrupts to enable more reliable operation.
Preliminary Datasheet
Description
Battery input. Battery voltages from 1.1 V to 3.3 V can be used. Must be connected to a
battery or external supply.
V is PMU generated 1.8-V IO supply output.
DDIOP
Auxiliary supply output of typical value 3.2 V, used internally by the PMU.
Power supply input for digital and analog I/O circuits.
12
8.
Table 4).
002-38449 Rev. **
2023-08-21