Quectel EC25-V - Functional Diagram

LTE Module Series
EC25-V User Manual
EC25-V_User_Manual Confidential / Released 12 /
69
2.4. Functional Diagram
The following figure shows a block diagram of EC25 and illustrates the major functional parts.
 Power management
 Baseband
 DDR+NAND flash
 Radio frequency
 Peripheral interface
Baseband
PMIC
Transceiver
NAND
DDR2
SDRAM
PA
Switch
LNA
Switch
ANT_MAIN ANT_DIVANT_GNSS
VBAT_BB
VBAT_RF
APT
PWRKEY
ADCs
VDD_EXT USB USIM PCM
UARTI2C
RESET_N
19.2M
XO
STATUS
GPIOs
SAW
Control
IQ Control
Duplex
SAW
Tx
PRx DRx
Figure 1: Functional Diagram