LTE Module Series
EM05 Hardware Design
EM05_Hardware_Design Confidential / Released 25 / 59
A reference circuit is shown in the following figure.
Module
FUL_CARD_POWER_
OFF#
10K
1.8V/3.3V
Figure 9: Turn on the Module Automatically
The turn on scenario is illustrated in the following figure.
V
IL
≤0.2V
V
IH
≥1.19V
VCC
FUL_CARD_POWER_OFF#
RESET_N
Booting
Active
Module State
NOTE
≥12s
OFF
Figure 10: Timing of Turning on Module
Please make sure that VCC is stable before pulling up FUL_CARD_POWER_OFF# pin. The time
between them is no less than 30ms.
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