Data Sheet

BDE-BW2837
Dual-Band WiFi, Bluetooth & BLE Dual-Mode Module
Datasheet
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BDE Technology Inc.
Datasheet
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Pin #
Pin Name
Type
Shut Down State
(1)
After Power Up
(1)
Voltage Level
Description
Must be driven by the host.
9
GND
GND
‐
Ground
10
WL_SDIO_D0
I/O
HiZ
HiZ
1.8V
WLAN SDIO Data bit 0
(2)
11
WL_SDIO_D1
I/O
HiZ
HiZ
1.8V
WLAN SDIO Data bit 1
(2
12
WL_SDIO_D2
I/O
HiZ
HiZ
1.8V
WLAN SDIO Data bit 2
(2)
13
WL_SDIO_D3
I/O
HiZ
PU
1.8V
WLAN SDIO Data bit 3.
Changes state to PU at
WL_EN or BT_EN assertion
for card detects. Later
disabled by software
during initialization.
(2)
14
WLAN_IRQ
O
PD
0
1.8V
SDIO available, interrupt out.
Active high.
(For WL_RS232_TX/RX pull
up is at power up.)
Set to rising edge (active high)
on power up. The Wi‐Fi
interrupt line can be
configured by the driver
according to the IRQ
configuration
(Polarity / Level / Edge).
15
GND
GND
‐
Ground
16
GND
GND
‐
Ground
17
GND
GND
‐
Ground
18
RF_ANT2
ANA
‐
WLAN 2.4GHz RF Port.
NC if not used.
19
GND
GND
‐
Ground
20
GND
GND
‐
Ground
21
RESERVED1
I
PD
PD
1.8V
Reserved for future use.
NC if not used.
22
RESERVED2
I
PD
PD
1.8V
Reserved for future use.
NC if not used.
23
GND
GND
‐
Ground
24
GND
GND
‐
Ground
25
GPIO4
I/O
PD
PD
1.8V
Reserved for future use.
NC if not used.
26
GPIO2
I/O
PD
PD
1.8V
WL_RS232_RX
(when WLAN_IRQ = 1 at
power up)
27
GPIO1
I/O
PD
PD
1.8V
WL_RS232_TX
(when WLAN_IRQ = 1 at
power up)
28
GND
GND
‐
Ground
29
GND
GND
‐
Ground
30
GND
GND
‐
Ground
31
GND
GND
‐
Ground
32
RF_ANT1
ANA
‐
WLAN / Bluetooth 2.4GHz RF
Port
33
GND
GND
‐
Ground
34
GND
GND
‐
Ground
35
GND
GND
‐
Ground
36
EXT_32K
ANA
‐
Input sleep clock: 32.768 kHz
37
GND
GND
‐
Ground