WB50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wi-fi
14
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#
Pin Name
Section
I/O
Reference
Description
If Unused
81
N/C
-
-
No Connection
Leave open
82
GND
-
-
Ground
Must be connected to
GND
83
N/C
-
-
No Connection
Leave open
84
XPABIAS20
O
VCC3_3
External 2.4GHz booster control signal
to turn on the PA for Chain 0
Leave open
85
GND
-
-
Ground
Must be connected to
GND
86
XPABIAS21
O
VCC3_3
External 2.4GHz booster control signal
to turn on the PA for Chain 1
Leave open
87
GPIO_DPU CNTRL
O
VCC3_3
USB device pull-up resistor enable;
active high
Leave open
88
BT_PCM_SYN_C
O
VCC3_3
PCM Sync
Leave open
89
DBUSSENSE
I
VCC3_3
USB device bus sense signal from
peripheral to host;
active low
Leave open
90
BT_PCM_IN
I
VCC3_3
PCM Signal Input
Leave open
91
GND
-
-
Ground
Must be connected to
GND
92
BT_PCM_OUT
O
VCC3_3
PCM Signal Output
Leave open
93
DDM
I/O
-
USB Device Data Negative
Leave open
94
GND
-
-
Ground
Must be connected to
GND
95
DDP
I/O
-
USB Device Data Positive
Leave open
96
BT_PCM_CLK
I/O
VCC3_3
PCM Clock Signal
Leave open
97
GND
-
-
Ground
Must be connected to
GND
98
AR6004_GPIO_38
I/O
VCC3_3
Reserved for feature LTE coexistence ;
Reserved for WiFi LED indicator, Active
High
Leave open
99
HDMA
I/O
-
USB Host A Data Negative
Leave open
100
GND
-
-
Ground
Must be connected to
GND
101
HDPA
I/O
-
USB Host A Data Positive
Leave open
102
LTE_COEX3
I/O
VCC3_3
Reserved for LTE coexistence
Leave open
103
GND
-
-
Ground
Must be connected to
GND
104
LTE_ACTIVE
I/O
VCC3_3
Reserved for LTE coexistence
Leave open
105
HDMB
I/O
-
USB Host B Data Negative
Leave open
106
LTE_FRAME_SYNC
I/O
VCC3_3
Reserved for feature usage
Leave open
107
HDPB
I/O
-
USB Host B Data Positive
Leave open
