User's Manual

SSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
15
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Feature
Description
Radio
The BT radio shares the single antenna port with the WLAN through an internal 3-way RF
switch. The SSD50NBT implements WLAN/BT coexistence internally.
VDDIO is to set the I/O voltage internally with either 1.8 V or 3.3 V to ensure same voltage level
for the internal Wi-Fi and BT coexistence signal. Refer to the reference design specifications for
details.
BT wake up Host
PIO-3 is reserved for BT to wake host from deep sleep mode.
SDIO_IOVDD
WLAN Host IO (SDIO) power supply input 1.8V or 3.3V.
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
Table 4 summarizes the absolute maximum ratings and Table 5 lists the recommended operating conditions for
the SSD50NBT. Absolute maximum ratings are those values beyond which damage to the device can occur.
Functional operation under these conditions, or at any other condition beyond those indicated in the
operational sections of this document, is not recommended.
Note: Maximum rating for signals follows the supply domain of the signals.
Table 4: Absolute Maximum Ratings
Symbol (Domain)
Parameter
Max Rating
Unit
SDIO_IOVDD
WLAN host SDIO interface I/O supply
-0.3 to 4.0
V
VDDIO (Wi-Fi and BT)
WLAN and BT I/O configuration power supply
-0.3 to 4.0
V
VDD33;VDD33_FEM
External 3.3V power supply
-0.3 to 4.0
V
BT_VDD
BT Power core supply
3.6
V
VDD12_USB, DVDD12,
AVDD12
WLAN 1.2V power supply
-0.3 to 1.32
V
Storage
Storage Temperature
-40 to +85
°C
ANT1; ANT2
Maximum RF input (reference to 50-Ω input)
+10
dBm
ESD
Electrostatic discharge tolerance
2000
V
Recommended Operating Conditions
Table 5: Recommended Operating Conditions
Symbol (Domain)
Parameter
Min
Typ
Max
Unit
SDIO_IOVDD
WLAN host interface I/O supply
1.71/3.2
1.8/3.3
1.89/3.46
V
VDDIO (Wi-Fi and BT)
WLAN and BT GPIO I/O power
supply
1.71/3.2
1.8/3.3
1.89/3.46
V
VDD33
External 3.3V power supply
3.2
3.30
3.46
V
BT_VDD
BT core supply
3.2
3.30
3.46
V
VDD12_USB, DVDD12,
AVDD12
WLAN 1.2V power supply
1.20
1.26
1.32
V
T-ambient
Ambient temperature
-30
25
85
°C