Product Info

Wi-Fi&BT Module Series
FG50V Hardware Design
FG50V_Hardware_Design 20 / 54
COEX_TXD 59 DO
2.4G WWAN &
WLAN/BT
coexistence
transmit
V
OL
max = 0.45 V
V
OH
min = 1.35 V
1.8 V power domain.
If unused, keep these
pins open.
COEX_RXD 16 DI
2.4G WWAN &
WLAN/BT
coexistence
receive
V
IL
min = -0.3 V
V
IL
max = 0.63 V
V
IH
min = 1.17 V
V
IH
max = 2.1 V
LAA_AS_EN 82 DI
Allows LAA/n79 to
control WLAN
xFEM during
WLAN sleep mode
V
IL
min = -0.3 V
V
IL
max = 0.63 V
V
IH
min = 1.17 V
V
IH
max = 2.1 V
LAA_TXEN 41 DI
WLAN xFEM
control to enable
LAA/n79 transmit
V
IL
min = -0.3 V
V
IL
max = 0.63 V
V
IH
min = 1.17 V
V
IH
max = 2.1 V
LAA_RX 81 DI
WLAN xFEM
control for
LAA/n79 receiver
V
IL
min = -0.3 V
V
IL
max = 0.63 V
V
IH
min = 1.17 V
V
IH
max = 2.1 V
WLAN_TXEN 42 DO
WLAN xFEM
control to enable
WLAN transmit
V
OL
max = 0.45 V
V
OH
min = 1.35 V
PA_MUTE 80 DI
WLAN xFEM
control to disable
WLAN PA
V
IL
min = -0.3 V
V
IL
max = 0.63 V
V
IH
min = 1.17 V
V
IH
max = 2.1 V
Other Interfaces
Pin Name Pin No. I/O Description DC Characteristics Comment
SW_CTRL* 57 DO Switch control
V
OL
max = 0.45 V
V
OH
min = 1.35 V
1.8 V power domain.
Active high.
If unused, keep this pin
open.
WLAN_DBG_TXD 21 DO
WLAN debug
UART transmit
V
OL
max = 0.45 V
V
OH
min = 1.35 V
1.8 V power domain.
If unused, keep these
pins open.
WLAN_DBG_RXD 65 DI
WLAN debug
UART receive
V
IL
min = -0.3 V
V
IL
max = 0.63 V
V
IH
min = 1.17 V
V
IH
max = 2.1 V
BT_DBG_TXD 23 DO
BT debug UART
transmit
V
OL
max = 0.45 V
V
OH
min = 1.35 V