AIROC™ Bluetooth® system on chip for automotive applications
Pin assignments and GPIOs
9
Pin assignments and GPIOs
This section addresses 48-pin WQFN pin assignment and general purpose IOs (GPIOs) for the CYW89820 device.
Table 5. 48-pin WQFN pin assignment
Pin number
WQFN-48
Power
Pin name
I/O
Description
domain
Baseband supply
VDDO
VDDO1
VDDO2
31
6
39
I
I
I
I
VDDO
VDDO
VDDO
I/O pad power supply
I/O pad power supply
I/O pad power supply
ADC_AVDDBAT 36
ADC_AVDD ADC supply
VDDC
8, 30, 41
I/O VDDC
Baseband core power supply
RF power supply
IFVDD
PLLVDD
PAVDD
VCOVDD
24
I
I
I
I
IFVDD
IFPLL power supply
RFPLL and crystal oscillator supply
PA supply
26
22
25
PLLVDD
PAVDD
VCOVDD
VCO supply
Onboard LDOs
PALDO_VDDIN
PALDO_VDDOUT 18
17
I
O
I
–
–
–
PA LDO input
PA LDO output
Internal digital LDO input
DIGLDO_VDDIN
–
DIGLDO_-
VDDOUT
21
O
–
Internal digital LDO output
RFLDO_VDDIN
RFLDO_VDDOUT 19
–
I
O
–
–
RF LDO input
RF LDO output
RFLDO_DIGLDO
_VDDIN
20
I
–
Internal digital LDO and RF LDO input
SR_PVDD
SR_VLX
PMU_AVDD
Ground pins [1]
ADC_REFGND
VSSC
ADC_AVSS
MIC_AVSS
ADC_AVSSC
PMU_AVSS
PLLVSS
15
14
16
I
O
I
–
–
–
Core buck input
Core buck output
PMU supply
–
–
–
–
–
–
–
–
–
–
I
I
I
I
I
I
I
I
I
I
AVSS
VSS
AVSS
AVSS
AVSS
VSS
Analog reference ground
Ground
Analog ground
Microphone analog ground
Analog ground
PMU ground
Ground
VSS
VSS
PAVSS
Ground
VCOVSS
SR_PVSS
Note
VSS
VSS
Ground
Ground
1. All grounds in WQFN package connected to ground paddle.
Datasheet
22
002-25826 Rev. *G
2022-09-24
INFINEON [ Infineon ]
