SIM908

General features

• Quad-Band 850/900/1800/1900 MHz
• 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)
• Dimensions: 30 x 30 x 3.2 mm
• Weight: 5.2 g
• 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
• Operation temperature: -40°C to +85 °C

Specifications for Fax

• Group 3, class 1

Specifications for Data transfer

• GPRS class 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
• 
  

Specifications for SMS via GSM/GPRS

• Point to point MO and MT
• SMS cell broadcast
• Text and PDU mode

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

Specifications for Voice

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

Interfaces

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

Compatibility

• AT cellular command interface

Certifications:

• CE
• ROHS