Interface Applications; Power Supply Interfaces (J0201/J0202) - Quectel Smart EVB G2 User Manual

4

Interface Applications

This chapter describes the hardware interfaces of Smart EVB G2, shown as follows:

Power supply interfaces

Smart TE-A interface

LCM interfaces

Touch panel interfaces

Camera interfaces

USB interface

Audio interfaces

(U)SIM interfaces

UART interfaces

SD card interface

Emergency download interface
It also provides information about flashlights, sensors, vibrator, buttons, status indication LEDs and test
points to help customers use the Smart EVB G2.
4.1.

Power Supply Interfaces (J0201/J0202)

The Smart EVB G2 can be powered by an external 5V DC power adapter. Connect the DC power adapter
to the power jack (J0201) and then the step-down converter (DC-to-DC converter), which is used to
regulate the 5V DC power supply voltage to 4.2V for operating the module. The rated power of the
DC-to-DC converter is 3A.
The Smart EVB G2 can also be powered by a Li-polymer battery through the battery connector J0202 on
the board.
The following figure shows the simplified power supply schematic of Smart EVB G2.
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