Quectel AF20, Проектирование аппаратного обеспечения

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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.