SIM908

sim908
SIM908

SIM908 module is a complete Quad-Band  GSM/GPRS module which combines GPS technology for satellite navigation. The compact design which integrated GPRS and GPS in a SMT package will  significantly save both time and costs  for customers to develop GPS enabled applications. 
Featuring an industry-standard interface and GPS function, it allows variable assets to be tracked seamlessly at any location and anytime with signal coverage.


General features 
•Quad-Band 850/900/18001900MHz 
•GPRS multi-slot class 10 
•GPRS mobile station class B 
•Compliant to GSM phase 2/2+ 
  -  Class 4 (2 W @ 850/900 MHz) 
  - Class 1 (1 W @ 1800/1900MHz) 
•Control via AT commands (GSM 07.07 ,07.05   and SIMCom enhanced AT Commands) 
•SIM application toolkit 
•Supply voltage range:
  -GPRS: 3.2 ~ 4.8 V
  -GPS: 3.0 ~ 4.5V 
•Low power consumption
•Dimensions: 30*30*3.2mm
•Weight:
  - SIM908:5.2g 
  - SIM908-C:11.1g 
•Operation temperature: 
  -40 °C to +85 °C


Specifications for SMS via GSM / GPRS 
•Point-to-point MO and MT 

•SMS cell broadcast 
•Text and PDU mode 
 

Specifications for audio 
•Tricodec 
  - Half rate (HR) 
  - Full rate (FR) 
  - Enhanced Full rate (EFR) 
•Hands-free operation 
•Echo cancellation 
 
Specifications for data transfer 
•GPRS class 8/10: 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 
•Integrated TCP/IP stack
 
Compatibility 
•AT cellular command interface 

 
Specification for GPS
•Receiver type 
  - 42-channel 
  - GPS L1 C/A code, 
  - High-performance STE engine  
•Sensitivity 
  - Tracking:   -160 dBm 
  - Cold starts :           -143 dBm 
•Time-To-First-Fix   
  - Cold starts:           30s (typ.)  
  - Hot starts:   1s (typ.) 
•Accuracy 
  -Horizontal position : <2.5m CEP 
•Power consumption (GSM engine in idle mode) 
  - Acquisition           77mA 
  - Tracking   76mA


  1. •80-pad with SMT type 
    •Interface to external SIM 3V/ 1.8V 
    • Dual analog audio interfaces 
    •SPI interface 
    •RTC backup 
    •Charge interface 
    •A serial interface and a debug interface for  GSM/GPRS
    •Debug interface for GPS NMEA information output
    •Two separate antenna connectors for GSM/GPRS&GPS 
     

Certifications
•CE
•ROHS

 

 

 

Document download
  • Application Note
  • SIM908-C_Hardware Design_V1.03.pdfDownload
  • SIM908-C_SIM548C_HD_Comparison_V1.00.pdfDownload
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