Without Hot-Plug (U)Sim Card Connector; U)Sim Design Notices - Quectel RM510Q-GL Hardware Design

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. Without Hot-plug (U)SIM Card Connector

If (U)SIM card detection function is not needed, please keep USIM_DET disconnected. 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
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

4.1.6. (U)SIM Design Notices

To enhance the reliability and availability of the (U)SIM card in applications, please follow the criteria
below in (U)SIM circuit design.
⚫
Place the (U)SIM card connector as close to the module as possible. Keep the trace length less than
200 mm.
RM510Q-GL_Hardware_Design
USIM_VDD
10k-20k
22 Ω
22 Ω
22 Ω
33 pF 33 pF
USIM_VDD
10k-20k
22 Ω
22 Ω
22 Ω
GND
33 pF 33 pF
RM510Q-GL Hardware Design
100 nF
VCC
RST
CLK
CD1
IO
GND
33k
33 pF
TVS
100 nF
33 pF
TVS
5G Module Series
(U)SIM Card
Connector
VPP
1.8 V
4.7k
CD2
(U)SIM Card
Connector
VCC VPP
RST
CLK
IO
GND
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