U)Sim Card Connector Without Hot-Plug - Quectel RM502Q-GL Hardware Design

The following figure shows a reference design for (U)SIM interface with a normally open (NO) (U)SIM
card connector.
Module
USIM_VDD
USIM_RST
USIM_CLK
USIM_DET
USIM_DATA
GND
NOTE:
All these resistors, capacitors and TVS should be close to (U)SIM card connector in PCB layout.
Figure 16: Reference Circuit for Normally Open (U)SIM Card Connector

4.1.5. (U)SIM Card Connector Without Hot-plug

If (U)SIM card detection function 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_RST
USIM_CLK
USIM_DET
USIM_DATA
GND
NOTE: All these resistors, capacitors and TVS should be close to (U)SIM card connector in PCB layout.
Figure 17: Reference Circuit for a 6-pin (U)SIM Card Connector
RM502Q-GL_Hardware_Design
USIM_VDD
10-20k
22R
22R
22R
USIM_VDD
10-20k
22R
22R
22R
RM502Q-GL Hardware Design
(U)SIM Card
100 nF
VCC
RST
CLK
CD1
IO
GND
TVS
100 nF
VCC
RST
CLK
IO
GND
TVS
5G Module Series
Connector
VPP
CD2
0 Ω
(U)SIM Card
Connector
VPP
39 / 83