LPWA Module Series
BG772A-GL Hardware Design
BG772A-GL_Hardware_Design
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I2C_SDA
5
OD
I2C serial data (for
external codec)
External pull-up
resistor is required.
1.8 V only.
If this pin is unused,
keep it open.
Antenna Interfaces
Pin Name
Pin No. I/O
Description
DC
Characteristics
Comment
ANT_MAIN
26
AIO
Main antenna
interface
50 Ω impedance.
ANT_GNSS
32
AI
GNSS antenna
interface
50 Ω impedance.
If this pin is unused,
keep it open.
GPIO Interfaces*
Pin Name
Pin No. I/O
Description
DC
Characteristics
Comment
GPIO1
1
DIO/PU
General-purpose
input/output
1.8 V
If this pin is unused,
keep it open.
GPIO2
8
DIO/PD
General-purpose
input/output
1.8 V
GPIO3
9
DIO/PD
General-purpose
input/output
1.8 V
GPIO4
33
DIO/PD
General-purpose
input/output
1.8 V
GPIO5
40
DIO/PD
General-purpose
input/output
1.8 V
BOOT_CONFIG.
Do not pull it up before
startup.
If this pin is unused,
keep it open.
GPIO6
57
DIO/PU
General-purpose
input/output
1.8 V
If this pin is unused,
keep it open.
GPIO7
63
DIO/PU
General-purpose
input/output
1.8 V
ADC Interfaces*
Pin Name
Pin No. I/O
Description
DC
Characteristics
Comment
ADC0
17
AI
General-purpose
ADC interface
Voltage range:
0–1.8 V
If this pin is unused,
keep it open.
ADC1
18
AI
General-purpose
ADC interface
Voltage range:
0–1.8 V
