SIM908 (四頻GSM/GPRS+GPS二合一模塊）

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.

Quad-Bａnd 850/900/MHz

GPRS multi-slot class 10

GPRS 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/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

Specification for GPS

Receiver type

- 42-channel

- GPS L1 C/A code,

- High-performance STE engine

Sensitivity

- Tracking:

- Cold starts :

Time-To-First-Fix

- Cold starts:

- Hot starts:

-160 dBm

-143 dBm

30s (typ.)

1s (typ.)

Accuracy

-Horizontal position : <2.5m CEP

Power consumption (GSM engine in idle

mode)

- Acquisition

77mA

- Tracking

76mA

Interfaces

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