Product Info

Table Of Contents
Smart LTE Module Series
SC66 Hardware Design
SC66_Hardware_Design 23 / 139
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Baseband
Tranceiver
WCN
LPDDR
eMMC
FEM
XO
ANT _ GNSS
ANT_WIFI/BT
SD 3.0
UART
2×(U)SIM
USB
2.0&3.1
CAM
TPLCMSPI
EAR
SPK
MICs
RFCLK
BBCLK
MEM
Multimedia
Connectivity
Air Interface
Porcessors
Codec
Power
Signal
Power
Function
38.4MHZ
Duplexs
PA
Switch
SAW
LNA
SAW
SAW
Switch
SAW
ANT_ DRX
ANT_ MAIN
38.4
M
XO
Headset
APT
VDD_ RF
VOL_UP
C
1
VRTC
USIM1_VDD
USIM2_VDD
LDO13A_1P8
LDO11A_1P8
LDO14A_1P8
BATTERY
VPH_PWR
VBUS
GPIOs
13.2
769
I2C
I2S
PWRKEY
VOL DOWN
PM660L
SD_PU_VDD
SD_VDD
ADCs
LDO7B_3P125
LDO3B_2P8
HK ADC
PM660
PWM
PM-3003A
0Ω
FEM
ANT_WIFI_MIMO
VPH_PWR
5G TX
5G TX
5G RX
PDET
2.4G TRX
5G RX
PDET
2.4G TRX
Figure 1: Functional Diagram
The red dotted frame is Wi-Fi MIMO path, which is not supported by SC66-CE and SC66-W.
2.4. Evaluation Board
In order to help customers design and test applications with Quectel SC66 modules, Quectel supplies an
evaluation kit, which includes an evaluation board, a USB to RS232 converter cable, a USB Type-C data
cable, a power adapter, an earphone and antennas. For details, please refer the document [1] .
NOTE