Table of Contents
Advertisement
2.3
SIM900-DS Functional Diagram
The following figure shows a functional diagram of SIM900-DS:
The GSM baseband engine
Flash
The GSM radio frequency part
The antenna interface
The other interfaces
SIM900-DS_Hardware Design_V1.00
Power
supply
Power management unit
RTC
Analog Interface
Audio
Analog base
band
ADC
Figure 1: SIM900-DS functional diagram
Frequency
Digital Interface
Digital base
·
band
GPIOs
LCD/SPI
FLASH
11
Smart Machine Smart Decision
Radio
SIM1
SIM2
UART
PCM
2
I
C
2013-01-20
Advertisement
Table of Contents
Need help?
Do you have a question about the SIMCom SIM900-DS and is the answer not in the manual?
Questions and answers