User's Manual

SSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
26
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Pin #
Name
Type
Voltage
Reference
Description
If Not
Used
45
VDD12_USB
Power
-
USB interface 1.2V input fed from
switching regulator or external 1.2V DC
supply.
Note: When Wi-Fi run at USB interface,
external 1.2V (400mA max) is
required.
1.2V
46
VDD33_USB
Power
-
USB interface 3.3V input.
Connect to 3.3V
3.3V
47
VDD12_PMU
Power
output
-
On-Chip 1.2V switching regulator output.
A 10uF 6.3V LOW ESR cap is must to
connect to this pin as close as possible.
10uF
48
USB_D+
I/O
-
High speed serial interface, positive input
for USB2.0.
N/C
49
USB_D-
I/O
-
High speed serial interface, negative
input for USB2.0.
Strobe line for HSIC mode
N/C
50
GND
-
-
Ground
GND
51
WLAN_PWD_L
I, PD
SDIO_IOVDD
WLAN Power down, active low, external
10K pull up is required.
(0= power down, 1=WLAN awake)
Negation samples boot strap pin for SDIO
interface mode
10K, PU
52
WLAN_TDO
-
SDIO_IOVDD
Pull High for SDIO
Pull Low for USB
# See Boot strap configuration.
53
AR6004_GPIO38
I/O
VDDIO
Reserved for LTE coexistence;
Reserved for WiFi LED indicator, Active
High. (Not support Now)
N/C
54
LTE_COEX3
-
VDDIO
Reserved for LTE coexistence
N/C
55
LTE_ACTIVE
-
VDDIO -
Reserved for LTE coexistence
N/C
56
LTE_FRAME_SYNC
-
VDDIO -
Reserved for LTE coexistence
N/C
57
VDD33
Power
-
3.3V Power
3.3V
58
VDD33
Power
-
3.3V Power
3.3V
59
GND
-
-
Ground
GND
60
WAKE_ON_WLAN
O, PD
SDIO_IOVDD
Reserved for Wake-ON-Wireless
(WOW) LAN, WLAN output signal to wake
up host, active Low and need external
10K pull up.
Note: The current software does not
support it.
10K,PU
61
DEBUG_UART_TXD
O
SDIO_IOVDD
WLAN debugging UART TXD (GPIO_11)
# See Boot strap configuration.
62
WCN_PRIORITY
-
-
Reserved for LTE coexistence
N/C
63
GND
-
-
Ground
GND