无线数*输模块 SIM900/SIM900A

SIM900/SIM900A是一款贴片式GPRS模块

General features
* Quad-Band 850/ 900/ 1800/ 1900 MHz
* GPRS multi-slot cl* 10/8
* GPRS mobile station cl* B
* Compliant to GSM phase 2/2+
– Cl* 4 (2 W @850/ 900 MHz)
– Cl* 1 (1 W @ 1800/1900MHz)
* Dimensions: 24*24*3mm
* Weight: 3.4g
* Control via AT commands (GSM 07.07 ,07.05 and
SIMCOM enhanced AT Commands)
* SIM application toolkit
* Supply voltage range : 3.1 ... 4.8V
* Low power consumption: 1.5mA(sleep mode)
* Operation temperature: -40°C to +85 °C

Specifications for Fax
* Group 3, cl* 1

Specifications for Data
* GPRS cl* 10: max. 85.6 kbps (downlink)
* PBCCH support
* Coding schemes CS 1, 2, 3, 4
* CSD up to 14.4 kbps
* USSD
* Non transparent mode
* PPP-stack

Specifications for SMS via GSM/GPRS
* Point to point MO and MT
* SMS cell broadcast
* Text and PDU mode

Software features
* 0710 MUX protocol
* embedded TCP/UDP protocol
* FTP/HTTP( available at late July ,2010)
* FOTA ( available at July ,2010)
* MMS (available at July ,2010)
* Embedded AT (available at Q3,2010)

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)

Interfaces
* Interface to external SIM 3V/ 1.8V
* *og audio interface
* RTC backup
* SPI interface (option)
* Serial interface
* Antenna pad
* I2C
* GPIO
* PWM
* ADC

供应 无线数*输模块 SIM900/SIM900A

供应无线数*输模块 SIM900/SIM900A