Sim802 Functional Diagram - SimCom SIM802 HD Manual

SIM802 Hardware Design

2.2 SIM802 functional diagram

The following figure shows a functional diagram of the SIM802 and illustrates the mainly
functional part:
The GSM baseband engine
Flash and SRAM
The GSM radio frequency part
The GSM antenna interface
The SRD radio frequency part
The SRD RF antenna interface
The embedded SIM card IC (optional)
The other external interfaces
LCD
INTERFACE
SIM
INTERFACE
SIM802_HD_V2.01
MIAN
SERIAL
INTERFACE
Flash+SRAM
Module
Baseband
Engine
Embed SIM
Card
DEBUG
SERIAL
INTERFACE
Figure 1: SIM802 functional diagram
17
POWER
GSM Radio
Frequency
SRD Radio
Frequency
AUDIO
INTERFACE
GSM RF
PAD
SRD RF
PAD
12.01.2010