Quectel AF20 - Page 18

Wi-Fi&Bluetooth Module Series
AF20_Hardware_Design
17
/ 49
WLAN_EN
9
DI
Wi-Fi enable control
V
IL
min = -0.3 V
V
IL
max = 0.54 V
V
IH
min = 1.26 V
V
IH
max = 2.0 V
1.8 V power domain.
Active high.
SDIO_D3
22
DIO
SDIO data bit 3
V
OL
max = 0.18 V
V
OH
min = 1.62 V
V
IL
min = -0.3 V
V
IL
max = 0.54 V
V
IH
min = 1.26 V
V
IH
max = 2.0 V
1.8 V power domain
SDIO_D2
23
DIO
SDIO data bit 2
V
OL
max = 0.18 V
V
OH
min = 1.62 V
V
IL
min = -0.3 V
V
IL
max = 0.54 V
V
IH
min = 1.26 V
V
IH
max = 2.0 V
1.8 V power domain.
It is pulled up to 1.8 V
internally.
SDIO_D1
24
DIO
SDIO data bit 1
V
OL
max = 0.18 V
V
OH
min = 1.62 V
V
IL
min = -0.3 V
V
IL
max = 0.54 V
V
IH
min = 1.26 V
V
IH
max = 2.0 V
1.8 V power domain
SDIO_D0
25
DIO
SDIO data bit 0
V
OL
max = 0.18 V
V
OH
min = 1.62 V
V
IL
min = -0.3 V
V
IL
max = 0.54 V
V
IH
min = 1.26 V
V
IH
max = 2.0 V
SDIO_CLK
26
DI
SDIO clock
V
IL
min = -0.3 V
V
IL
max = 0.54 V
V
IH
min = 1.26 V
V
IH
max = 2.0 V
SDIO_CMD
27
DIO
SDIO command
V
OL
max = 0.18 V
V
OH
min = 1.62 V
V
IL
min = -0.3 V
V
IL
max = 0.54 V
V
IH
min = 1.26 V
V
IH
max = 2.0 V
Bluetooth Application Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
BT_EN
10
DI
Bluetooth enable
control
V
IL
min = -0.3 V
V
IL
max = 0.54 V
1.8 V power domain.
Active high.