Service Guide

LTE-A Module Series
EM060K-GL&EM120K-GL_Hardware_Design 29 / 78
5.1 V and a dissipation power higher than 0.5 W. The following figure shows a reference circuit of the
VCC.
Module
APT
2, 4
C2
220 μF
3, 5, 11
VCC (3.7 V Typ.)
VCC
GND
C10
10 pF
C8
33 pF
C6
100 nF
C4
1 μF
+
C1
220 μF
D1
5.1 V
VCC
GND
C9
10 pF
C7
33 pF
C5
100 nF
C3
1 μF
+
27, 33, 39,
45, 51, 57,
71, 73
70, 72, 74
PMU
Figure 7: Reference Circuit for the VCC
3.6. Turn on
FULL_CARD_POWER_OFF# is used to turn on/off the module. When the input signal is de-asserted high
(≥ 1.19 V), the module will be turned on. When the input signal is driven low (≤ 0.2 V) or Tri-stated, the
module will be turned off.
This input signal is 3.3 V tolerant and can be driven by either 1.8 V or 3.3 V GPIO. Also, it has internally
pulled down with a 100 kΩ resistor.
Table 8: Pin Definition of FULL_CARD_POWER_OFF#
It is recommended to use a host GPIO to control FULL_CARD_POWER_OFF#. A simple reference circuit
is illustrated in the following figure.
Pin No. Pin Name I/O Description Comment
6
FULL_CARD_
POWER_OFF#
DI, PD
Turn on/off the module.
High level: Turn on
Low level: Turn off
Pull down with a 100 kΩ resistor.