Sim900 Functional Diagram - SimCom SIM900 Hardware Design

SIM900 Hardware Design
(1) The SIM900 does work, but deviations from the GSM specification may occur.
Table 4 : Coding schemes and maximum net data rates over air interface
Coding scheme
CS-1:
CS-2:
CS-3:
CS-4:

2.2 SIM900 Functional Diagram

The following figure shows a functional diagram of the SIM900 and illustrates the mainly functional part:
The GSM baseband engine
Flash and SRAM
The GSM radio frequency part
The antenna interface
The Other interfaces
SIM900_HD_V1.05
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Figure 1: SIM900 functional diagram
4 Timeslot
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06.23.2010