User's Manual

UMTS/HSPA Module Series
UC20 User Manual
UC20_Hardware_Design Confidential / Released 17 / 84
PWRKEY
RESET_N
32kHz 19.2MHz
Power
Management Unit
Baseband
RF Transceiver
GNSS Receiver
ANT_GNSS
RF
Switch
DDR RAM/
ANT_MAIN
USIM
Status
ADC
PCM
UART
VBAT_BB
USB
ANT_DIV
VBAT_RF
VDD_EXT
GSM
UMTS
RF
Switch
VDD_2V85
WAKEUP_IN
VRTC
SLEEP_IND
W_DISABLE#
NAND Flash
Figure 1: Functional Diagram
2.5. Evaluation Board
In order to help you to develop applications with UC20, Quectel supplies an evaluation board (EVB),
RS-232 to USB cable, USB data cable, power adapter, earphone, antenna and other peripherals to
control or test the module. For details, please refer to document [2].