Dec 28 2007
SIM548 GSM/GPRS+GPS Module
Detailed Product Description
SIM548 module is a Quad-Band GSM/GPRS-enabled module that is also equipped with GPS technology for satellite navigation. The compact design of the SIM548 makes it easy to integrate GSM/GPRS & GPS as an all-in-one solution.You will save significantly both time and cost for the integration of additional hardware components
The combination of both technologies can fit almost all the space requirement in your application, such as PDA phone, GPS hand-held device and other mobile device, it allows vehicles and people to be tracked seamlessly at any location and anytime
GSM/GPRS specifications
Quad-Band 850/900/1800/1900MHz
GPRS multi-slot class 10/8
GPRS mobile station class B
Compliant to GSM phase 2/2+
-Class 4(2W
GSM850/GSM900MHz)
-Class 1(1W
GSM1800/GSM1900MHz)
Control via AT commands (GSM 07.07 and 07.05 and SIMCOM enhanced
AT commands)
SIM application tool kit
Low power consumption Supply voltage range: 3.4V…4.5V
Specifications for GPS
Receiver 20 channels, L1 1575.42MHz, C/A code 1,023MHz
chip rate
Accuracy Position 10m CEP,
without SA/Velocity 0.1m/s,
without SA/Time 1µs synchronized to GPS time
DGPS accuracy 1 to 5m, typical, 0.05m/s, typical
Date WGS-84
Acquisition rate (TTFF defined at 95% of first position local station)
Hot start < 1s, average, open sky
Warm start < 38s, average, open sky
Cold start < 42s, average, open sky
Operating voltage 3.3V DC ±5%
Low power consumption about 200mW at 3.3V
Protocols
NMEA-0183
SiRF binary
RTCM SC-104
Crystal oscillator (TCXO),temperature compensated with frequency stability
of ±0.5ppm
Memory: On-chip 4Mbit FLASH and 1Mbit SRAM
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