Product Info

LTE Standard Module Series
EG91 Series Hardware Design
EG91_Series_Hardware_Design
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SAW
Switch
Duplexer
PRx
LNA
SAW
GPS
SAW
DRx
4. “*” means under development.
2.3. Functional Diagram
The following figure shows a block diagram of EG91 series module and illustrates the major functional
parts.
• Power management
• Baseband
• DDR+NAND flash
• Radio frequency
• Peripheral interfaces
ANT_MAIN
ANT_GNSS
1)
ANT_DIV
PAM
VBAT_RF
PA
Tx
Transceiver
NAND
DDR2
SDRAM
IQ Control
VBAT_BB
PWRKEY
RESET_N
PMIC
Control
Baseband
STATUS
19.2M
XO
VDD_EXT
USB
(U)SIM1(U)SIM2
PCM I2C SPI UART GPIOs
Figure 1: Functional Diagram