Data Sheet

BDE-BW2837
Dual-Band WiFi, Bluetooth & BLE Dual-Mode Module
Datasheet
[e-mail]
BDE Technology Inc.
Datasheet
6 / 39
Pin #
Pin Name
Type
Shut Down State
(1)
After Power Up
(1)
Voltage Level
Description
38
VIO
POW
PD
PD
1.8V
Connect to 1.8V external VIO
39
GND
GND
‐
Ground
40
WLAN_EN
I
PD
PD
1.8V
Mode setting: high = enable
41
BT_EN
I
PD
PD
1.8V
Mode setting: high =enable.
If Bluetooth is not used, connect
to ground.
42
WL_UART_DBG
O
PU
PU
1.8V
Option: WLAN logger
43
BT_UART_DEB
UG
O
PU
PU
1.8V
Option: Bluetooth logger
44
GND
GND
‐
Ground
45
GND
GND
‐
Ground
46
VBAT_IN
POW
VBAT
Power supply input, 2.9 to 4.8 V
47
VBAT_IN
POW
VBAT
Power supply input, 2.9 to 4.8 V
48
GND
GND
‐
Ground
49
GND
GND
‐
Ground
50
BT_HCI_RTS
O
PU
PU
1.8V
UART RTS to host.
NC if not used.
51
BT_HCI_CTS
I
PU
PU
1.8V
UART CTS to host.
NC if not used.
52
BT_HCI_TX
O
PU
PU
1.8V
UART TX to host.
NC if not used.
53
BT_HCI_RX
I
PU
PU
1.8V
UART RX to host.
NC if not used.
54
GND
GND
‐
Ground
55
GND
GND
‐
Ground
56
BT_AUD_IN
I
PD
PD
1.8V
Bluetooth PCM/I2S bus. Data in.
NC if not used.
57
BT_AUD_OUT
O
PD
PD
1.8V
Bluetooth PCM/I2S bus. Data in.
NC if not used.
58
BT_AUD_FSYN
C
I/O
PD
PD
1.8V
Bluetooth PCM/I2S bus. Data in.
NC if not used.
59
GND
GND
‐
Ground
60
BT_AUD_CLK
I/O
PD
PD
1.8V
Bluetooth PCM/I2S bus. Data in.
NC if not used.
61
GND
GND
‐
Ground
62
RESERVED3
O
PD
PD
1.8V
Reserved for future use.
NC if not used.
Option: External TCXO.
63
GND
GND
‐
Ground
64
GND
GND
‐
Ground
G1~G36
GND
GND
‐
Ground
(1) PU = pullup; PD = pulldown.
(2) Host must provide PU using a 10-K resistor for all non-CLK SDIO signals.