Recommended Usim Card Holder - SIMCom Wireless Solutions SIM7600A-H User Manual

 The traces should be as short as possible
 Keep SIM card holder's GND connect to main ground directly
 Shielding the SIM card signal by ground well
 Recommended to place a 100nF capacitor on SIM_VDD line and keep close to the SIM
card holder
 Add some TVS which parasitic capacitance should not exceed 50pF
 Add 51Ω resistor to (SIM_RST/SIM_CLK/SIM_DATA) signal could enhance ESD
protection
 Add 22pF capacitor to (SIM_RST/SIM_CLK/SIM_DATA) signal to induce RF signal
interference

Recommended USIM Card Holder

3.5.3
It is recommended to use the 6-pin USIM socket such as C707 10M006 512 produced by
Amphenol. User can visit http://www.amphenol.com for more information about the holder.
Table 13: Amphenol USIM Socket Pin Description
Pin Signal
C1 USIM_VDD
C2 USIM_RST
C3 USIM_CLK
C5 GND
C6 VPP
C7 USIM_DATA
SIM7600A-H_User Manual_V1.00
Figure 19: Amphenol SIM card socket
Description
USIM Card Power supply.
USIM Card Reset.
USIM Card Clock.
Connect to GND.
USIM Card data I/O.
Smart Machine Smart Decision
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2017-11-24