SIM802 Hardware Design
2 Product concept
Designed for global market, SIM802 module is a complete Quad-Band GSM/GPRS solution that
is also equipped with SRD RF technology and embedded SIM card IC (optional).The GSM/GPRS
engine works on frequencies GSM/GPRS 900/1800 MHz and 850/1900MHz, SIM802 series
features GPRS multi-slot class 10/Class 8 (the default is class 10) capability and supports the
GPRS coding schemes CS-1, CS-2, CS-3 and CS-4. The SRD RF engine works on
433/868/915MHz, SRD RF supports the multi-channel choice, transparent date transfer without
complex user setting.
The compact design of the SIM802 makes it easy to integrate GSM/GPRS & SRD RF as an
all-in-one solution. You will save significantly both time and cost for the integration of additional
hardware components
.
With a tiny configuration of 33mm x 33mm x 5.2 mm, SIM802 can meet almost all the space
requirement in your application, such as M2M and mobile data communication system etc.
The hardware package of 60 pins
z
12 GND Pins and 2 VBAT pins
z
1 Pin is programmable as General Purpose I/O .This gives you the flexibility to develop
customized applications.
z
Serial port and Debug port can help you easily develop your applications. But they can not
work at the same time.
z
Two audio channels include two microphone inputs and two speakers’ outputs. This can be
easily configured by AT command.
z
LCD display interface.
z
Either SIM card interface or embedded SIM card IC is optional.
z
Charge interface. Charge circuit integrated inside the SIM802, it is very suitable for the
battery power application.
z
GSM RF and SRD RF antenna interface. Customer’s antenna should be located in the
customer’s mainboard and connect to module’s antenna pad through micro strip line or other
type RF traces which impendence must be 50
Ω
.
z
I
2
C and SPI interfaces for SRD.
The SIM802 is designed with power saving technique, so that the current consumption is as low
as 6mA in SLEEP mode (BS-PA-MFRMS=5, only GSM sleep mode current consumption).
The SIM802 is integrated with the TCP/IP protocol
，
Extended TCP/IP AT commands are
developed for customers to use the TCP/IP protocol easily, which is useful for those data transfer
applications.
SIM802_HD_V2.01
12.01.2010
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