Quectel EM05-G - Turn on

LTE Standard Module Series
EM05-G Hardware Design
EM05-G_Hardware_Design 29 / 69
The following table shows the definition of FULL_CARD_POWER_OFF#.
Table 8: Definition of FULL_CARD_POWER_OFF#
EM05-G can be turned on by driving the FULL_CARD_POWER_OFF# pin to a high level.
It is recommended to use a host GPIO to control FULL_CARD_POWER_OFF#. A simple reference circuit
is illustrated in the following figure.
Host Module
FULL_CARD_POWER_OFF#
PMU
GPIO
6
1.8/3.3 V
R1
100k
Note:
The voltage of pin 6 should be no less than 1.19 V when it is at high level.
Figure 9: Turn on the Module with a Host GPIO
The module can also be turned on automatically. The FULL_CARD_POWER_OFF# should be pulled up
to 1.8 V or 3.3 V (recommended) through a resistor, whose resistance should be 5–10 kΩ. In this case,
when the power supply of VCC is cut off, the module will be shut down.
Pin
No.
Pin Name
I/O
Description
DC
Characteristics
Comment
6
FULL_CARD_
POWER_OFF#
DI, PD
Turn on/off the module.
High level: Turn on
Low level: Turn off
V
IH
max = 4.4 V
V
IH
min = 1.19 V
V
IL
max = 0.2 V
V
IL
min = -0.3 V
Pull down with a
100 kΩ resistor.