Quectel EM05-G - Page 31

LTE Standard Module Series
EM05-G Hardware Design
EM05-G_Hardware_Design 30 / 69
A reference circuit is shown in the following figure.
Module
FULL_CARD_POWER_OFF#
10K
1.8/3.3 V
Figure 10: Turn on the Module Automatically
The timing of turning on the module is illustrated in the following figure.
V
IL
 0.2 V
1.19 V V
IH
 4.4 V
VCC
FULL_CARD_POWER_OFF#
RESET#
Booting
Active
Module State
Note
 12 s
OFF
Figure 11: Timing of Turning on Module
Make sure that VCC is stable before pulling up FULL_CARD_POWER_OFF# pin. The time between them
is no less than 30 ms.
NOTE