Product Info

LTE Module Series
EC25 Hardware Design
EC25_Hardware_Design 23 / 112
Baseband
PMIC
Transceiver
NAND
DDR2
SDRAM
PA
PAM
LNA
Switch
ANT_MAIN ANT_DIVANT_GNSS
VBAT_BB
VBAT_RF
APT
PWRKEY
ADCs
VDD_EXT
USB USIM PCM UARTsI2C
RESET_N
19.2M
XO
STATUS
GPIOs
SAW
Control
IQ Control
Duplex
SAW
Tx
PRx DRx
WLAN SDBT*
SGMII
Figure 1: Functional Diagram
“*” means under development.
2.4. Evaluation Board
In order to help customers develop applications with EC25, Quectel supplies an evaluation board (EVB),
USB to RS-232 converter cable, earphone, antenna and other peripherals to control or test the module.
NOTE