Quectel EC2 Series Design Manualline page 25

GND
GND
SD card traces
SD card traces
Figure 22: Overview of SD Card Signal Traces (EVB 1st Layer)
GND
Figure 23: Overview of SD Card Signal Traces (EVB 3rd Layer)
EC2x&EG2x-G_Series_PCB_Design_Guideline
SD Card connector
SD Card connector
TVS & Capacitors & Resistors
TVS & Capacitors & Resistors
GND
GND
SD_CLK
SD_CMD
GND
SD_DATA
LTE Standard Module Series
EC2x&EG2x-G Series PCB Design Guideline
GND
GND
GND
GND
VDD_SDIO
SD_INS_DET
GND
GND
GND
GND
GND
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