User's Manual

USER MANUAL
WN7911A-LF
9
4.5 Pin Description
Pin
#
Terminal Name
Pin
Type
I/O
Type
Description
1 BTCX_RF_ACTIVE Signal I
Indicates that the coexistent BT is active:
internal pull-down.
2 BTCX_STATUS Signal I
Indicates the coexistent BT priority status and
RX/TX direction.
3 USB_AVDD12 Power I USB Phy core 1.2V supply
4 USB_AVDD25 Power I USB Phy analog 2.5V supply
5 USB_AVDD33 Power I USB Phy analog 3.3V supply
6 VDD_AFE Power I
1.2V filtered supply for ADC; 1.2V filtered
supply for AFE AUX
7 GND Power I Ground
8 USB20_DEV_DPLS Signal I/O USB port data plus
9 USB20_DEV_DMNS Signal I/O USB port data minus
10 GND Power I Ground
11 BTCX_FREQ Signal I
Indicates that the coexistent BT is about to
transmit on a restricted channel: internal
pull-down.
12 GPIO_8 Signal I/O General-purpose interface pins.
13 BTCX_TXCONF Signal O
Output permission for the coexistent BT to
transmit.
14 UART_TX Signal O Serial Input for UART
15 UART_RX Signal I Serial Output for UART
16 GND Power I Ground
17 VIN_LDO Power I Input supply pin for CLDO and LNLDO1
18 VDD_CORE_1.2V Power O 1.2V output for core LDO, 200mA
19 VDD_RADIO_PLL_O Power O 1.2V output for low noise LNLDO1, 150mA