SIMCOM SIM508/548 module

Physical features:
Overall dimensions: 34mm x 55mm x 3.0mm
Weight: approx.12g
Normal operation temperature:
-20ÿãC to +55ÿãC
Restricted operation temperature:
-30ÿãC to -20ÿãC and +55ÿãC to +80ÿãC
Storage temperature:
-40ÿãC to +85ÿãC
GSM/GPRS specifications:
Tri-Band 900/1800/1900MHz or 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 @ GSM 900MHz)
-Class 1(1W @ GSM 1800/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 10 m CEP
without SA/Velocity 0.1m/s
without SA/Time 1¥Ìs 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 ÿ?%
Low power consumption about 160mW at 3.3V (Full power)
Protocols
NMEA-0183
SiRF binary
RTCM SC-104
Crystal oscillator (TCXO), temperature compensated with frequency stability of ÿ?.5ppm
Memory: On-chip 4Mbit FLASH and 1Mbit SRAM