SIM Tech SimCom SIM340, Проектирование аппаратного обеспечения

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SIM340 Hardware Design
2 SIM340 overview
Designed for global market, SIM340 is a Quad –band GSM/GPRS engine that works on
frequencies GSM 850 MHZ, EGSM 900 MHz, DCS 1800 MHz and PCS 1900 MHz. SIM340
features GPRS multi-slot class 10/ class 8 (optional) and supports the GPRS coding schemes CS-1,
CS-2, CS-3 and CS-4.
With a tiny configuration of 40mm x 33mm x 2.9mm , SIM340 can meet almost all the space
requirements in your applications, such as smart phone, PDA phone and other mobile devices.
The physical interface to the mobile application is a 60-pin board-to-board connector, which
provides all hardware interfaces between the module and customers’ boards except the RF antenna
interface.
The keypad and SPI display interface will give you the flexibility to develop customized
applications.
Serial port and Debug port can help you easily develop your applications.
Two audio channels include two microphones inputs and two speakers’ outputs. This can be easily
configured by AT command.
The SIM340 provides RF antenna interface with alternatives: antenna connector and antenna pad.
The antenna connector is MURATA MM9329-2700. And customer’s antenna can be soldered to
the antenna pad.
The SIM340 is designed with power saving technique; so that the current consumption is as low as
2.5mA in SLEEP mode.
The SIM340 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 very useful for those data
transfer applications.
SIM340_HD_V3.09 18.03.2009
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