U)Sim Card Connector Without Hot-Plug - Quectel EM160R-GL Hardware Design

The following figure shows a reference design for (U)SIM interface with a normally open (U)SIM card
connector.
Module
USIM_VDD
USIM_VDD
USIM_RST
USIM_CLK
10 kΩ
USIM_DET
USIM_DATA
NOTE: All these resistors, capacitors and TVS array should be close to (U)SIM card connector in PCB layout.
The external pull-up resistor of USIM_DATA is optional.
Figure 13: Reference Circuit of Normally Open (U)SIM Card Connector

3.6.4. (U)SIM Card Connector Without Hot-Plug

If (U)SIM card hot-plug is not needed, please keep USIM_DET unconnected. A reference circuit for
(U)SIM card interface with a 6-pin (U)SIM card connector is illustrated by the following figure.
Module
USIM_VDD
USIM_VDD
USIM_RST
USIM_CLK
10 kΩ
USIM_DET
USIM_DATA
NOTE: All these resistors, capacitors and TVS array should be close to (U)SIM card connector in PCB layout.
The external pull-up resistor of USIM_DATA is optional.
Figure 14: Reference Circuit of a 6-Pin (U)SIM Card Connector
NOTE
1. If the (U)SIM card detection function is not needed, please keep USIM_DET unconnected.
2. If the (U)SIM card detection function is required, note that a pull-up resistor should not be added to
the USIM1_DET and USIM2_DET signals.
EM160R-GL_Hardware_Design
20K
22R
22R
22R
GND
20K
22R
22R
22R
GND
(U)SIM Card
Connector
100 nF
VCC
RST
CLK
CD1
IO
GND
TVS array
100 nF
VCC
RST
CLK
IO
GND
TVS array
LTE-A Module Series
VPP
CD2
0R
(U)SIM Card
Connector
VPP
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