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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
VBAT_RF
VBAT_BB
PWRKEY
RESET_N
ADCs
STATUS
EC25-V_User_Manual
69
PA
APT
Tx
PMIC
Control
19.2M
XO
VDD_EXT
Figure 1: Functional Diagram
Confidential / Released
ANT_MAIN
ANT_GNSS
Switch
SAW
Duplex
LNA
PRx
Transceiver
IQ
Baseband
USB
USIM
PCM
LTE Module Series
EC25-V User Manual
ANT_DIV
Switch
SAW
DRx
NAND
DDR2
SDRAM
Control
I2C
UART
GPIOs
12 /
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