LTE-A Module Series
EG12 Hardware Design
EG12_Hardware_Design 42 / 97
An open drain/collector driver or button can be used to control the RESET_N. A reference circuit is shown
as below.
Reset pulse
RESET_N
4.7K
47K
250ms~600ms
Figure 15: Reference Circuit of RESET_N with a Driving Circuit
RESET_N
S2
Close to S2
TVS
Figure 16: Reference Circuit of RESET_N with a Button
The reset scenario is illustrated in the following figure.
V
IL
≤0.5V
V
IH
≥1.3V
VBAT
≥250ms
Resetting
Module
Status
Running
RESET_N
Restart
≤600ms
Figure 17: Timing of Resetting the Module