Product Info

Smart LTE Module Series
SC650T Hardware Design
SC650T_Hardware_Design 35 / 131
open.
Charging Interface
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
BAT_PLUS
27
AI
Differential input
signal of battery
voltage detection
(plus)
Must be connected.
BAT_MINUS
28
AI
Differential input
signal of battery
voltage detection
(minus)
Must be connected.
Antenna Interfaces
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
ANT_MAIN
19
IO
Main antenna
interface
50Ω impedance
ANT_DRX
149
AI
Diversity antenna
interface
ANT_GNSS
134
AI
GNSS antenna
interface
ANT_WIFI/BT
129
IO
Wi-Fi/BT antenna
interface
ANT_FM
244
AI
FM antenna
interface
GPIO Interfaces
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
GPIO_0
248
IO
GPIO
V
IL
max=0.63V
V
IH
min=1.17V
GPIO_1
247
IO
GPIO
GPIO_2
201
IO
GPIO
GPIO_3
200
IO
GPIO
GPIO_22
58
IO
GPIO
GPIO_23
59
IO
GPIO
GPIO_33
238
IO
GPIO