Kowatec - SIMCOM

SIM900/900B/900D - GSM/GPRS Module

SIM9XXX

Featuring an industry-standard interface, the SIM900 series deliver GSM/GPRS 850/900/1800/1900MHz performance for voice, SMS, Data, and Fax in a small form factor and with low power consumption. With a tiny configuration of 24mm x 24mm x 3 mm, this module can fit almost all the space requirements in your M2M applications, especially for slim and compact demands of design.

Specification

GPRS class 10: max. 85.6 kbps (downlink)
PBCCH support
Coding schemes CS 1, 2, 3, 4
CSD up to 14.4 kbps
Non transparent mode

Features

Quad-Band 850/ 900/ 1800/ 1900 MHz
GPRS multi-slot class 10/8
GPRS mobile station class B
Compliant to GSM phase 2/2+
- Class 4(2W @ GSM850/900MHz)
- Class 1(1W @ GSM1800/1900MHz)
Control via AT commands
(GSM 07.07 and 07.05 and SIMCom enhanced AT commands)
Dimensions: 24* 24 * 3 mm
Low power consumption
Supply voltage range: 3.4V - 4.5V

Interfaces

Interface to external SIM 3V/ 1.8V
Analog audio interface
RTC backup
SPI interface
Serial interface
Antenna pad
I2C
GPIO
PWM
ADC

Specifications for Voice

Tricodec
- Half rate (HR)
- Full rate (FR)
- Enhanced Full rate (EFR)
Hands-free operation
(Echo suppression)
AMR
- Half rate (HR)
- Full rate (FR)