LPWA Module Series
BG95 Hardware Design
BG95_Hardware_Design 26 / 80
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
DBG_RXD 22
DI
Receive
data
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power domain.
If unused, keep this
pin open.
DBG_TXD 23
DO
Transmit
data
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep this
pin open.
GNSS UART Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
GNSS_UART_
TXD
27 DO
Transmit
data
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep this
pin open.
GNSS_UART_
RXD
28 DI
Receive
data
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power domain.
If unused, keep this
pin open.
PCM Interface*
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
PCM_CLK* 4
DO
PCM clock
output
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep this
pin open.
PCM_SYNC* 5
DO
PCM frame
synchronization
output
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep this
pin open.
PCM_IN*
6
DI
PCM data input
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power domain.
If unused, keep this
pin open.
PCM_OUT* 7
DO
PCM data
output
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep this
pin open.
I2C Interface*
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
I2C_SCL* 40
OD
I2C serial clock.
Used for
external codec.
External pull-up
resistor is required.
1.8V only.
If unused, keep this
