Quectel RG520N-AT - Functional Diagram

5G Module Series
RG520N-AT_Hardware_Design 17 / 109
2.3. Functional Diagram
The following figure shows a block diagram of the module and illustrates the major functional parts.
⚫ Power management
⚫ Baseband
⚫ DDR + NAND flash
⚫ Radio frequency
⚫ Peripheral interfaces
PMIC
Transceiver
NAND
LPDDR4X
SDRAM
Tx/Rx Blocks
ANT1
ANT2
ANT_GNSS
VBAT_BB
VBAT_RF
QET
PWRKEY
ADC
RESET_N
STATUS
QLINK
Control
Tx
PRx
DRx
Baseband
Indication Signals
ANT0
ANT3
VDD_EXT
USB
2.0/3.1
(U)SIM1
PCM
UART
I2C
SDIO
W_DISABLE＃
GNSS
MIPI&GRFC
76.8 MHz
XO
PMU
RFCLK
76.8 MHz
PCIe
3.0
eSIM
(U)SIM2
BBCLK(19.2 MHz)
SleepCLK(32.768 kHz)
SPMI
VDD_WIFI_VL
VDD_WIFI_VM
VDD_WIFI_VH
USB_BOOT
SPI
Figure 1: Functional Diagram