LTE-A Module Series
EG06 Hardware Design
EG06_Hardware_Design 43 / 89
EG06 supports (U)SIM card hot-plug via the USIM_PRESENCE pin. The function supports low level and
high level detections, and is disabled by default. Please refer to
document [1]
about
AT+QSIMDET
command for details.
The following figure shows a reference design for (U)SIM card interface with an 8-pin (U)SIM card
connector.
Module
USIM_VDD
USIM_GND
USIM_RST
USIM_CLK
USIM_DATA
USIM_PRESENCE
22R
22R
22R
VDD_EXT
51K
100nF
(U)SIM Card Connector
GND
GND
VCC
RST
CLK
IO
VPP
GND
USIM_VDD
15K
NM
NM
NM
Figure 18: Reference Circuit of (U)SIM Interface with an 8-Pin (U)SIM Card Connector
If (U)SIM card detection function is not needed, please keep USIM_PRESENCE unconnected. A
reference circuit for (U)SIM interface with a 6-pin (U)SIM card connector is illustrated in the following
figure.
Module
USIM_VDD
USIM_GND
USIM_RST
USIM_CLK
USIM_DATA
22R
22R
22R
100nF
(U)SIM Card Connector
GND
VCC
RST
CLK
IO
VPP
GND
15K
USIM_VDD
NM
NM
NM
Figure 19: Reference Circuit of (U)SIM Interface with a 6-Pin (U)SIM Card Connector