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FIBOCOM FG621-LA Series Hardware Guide
Page 12 of 57
Baseband
PMIC
LPDDR2
Transceiver
VDD_EXT
USB
(U)SIM
PCM
I
2
C
SPI
UART
SDIO GPIOs
STATUS
ADCs
RESET_N
PWRKEY
VBAT_BB
VBAT_RF
TRX Blocks
Control
Control
IQ
ANT_MAIN
ANT_DIV
TX
RX
26M
XO
NAND
Figure 2-1 Functional diagram
2.4 Development Board
Fibocom provides EVK-FG150-00, ADP-FG621-LA-00 development board to facilitate module’s debug
and use.