SimCom SIM800

Smart Machine Smart Decision
SIM800_Hardware Design_V1.10 13 2018-08-13
2.3. SIM800 Functional Diagram
The following figure shows a functional diagram of SIM800:
 GSM baseband engine
 PMU
 RF part
 Antenna interfaces
 Other interfaces
Analog
Baseband
Digital
Baseband
Power Management Unit
Radio
Frequency
Power
Supply
Analog
Interface
Digital
Interface
UART
SIM
GPIOs
RTC
Audio
ADC
GSM
BT
USB
KEYPAD
PCM
Figure 1: SIM800 functional diagram