LTE-A Module Series
EG06 Hardware Design
EG06_Hardware_Design 38 / 89
Table 7: PWRKEY Pin Description
When EG06 is in power down mode, it can be turned on to normal mode by driving the PWRKEY pin to a
low level for at least 500ms. It is recommended to use an open drain/collector driver to control the
PWRKEY. After STATUS pin outputs a high level, PWRKEY pin can be released. A simple reference
circuit is illustrated in the following figure.
Turn on pulse
PWRKEY
4.7K
47K
≥500ms
Figure 11: Turn on the Module Using Driving Circuit
Another way to control the PWRKEY is using a button directly. When pressing the key, electrostatic strike
may generate from finger. Therefore, a TVS component is indispensable to be placed nearby the button
for ESD protection. A reference circuit is shown in the following figure.
Figure 12: Turn on the Module Using Keystroke
V
IH
max=2.1V
V
IH
min=1.3V
V
IL
max=0.5V
The output voltage is 0.8V
because it is pulled up to an
internal voltage (800mV).
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