MTI-4
SiRFstarIII TM GPS Module
Introduction
MTI-4 GPS Module consists of SiRFstarIII? technology. (INTERNAL 4Mbit FLASH)
MTI-4 contains LNA, SAW Filter, Reset IC, RTC X-tal, TCXO and Regulator.
Product Features
Fully self-contained GPS receiver.
Fully shield.
Full implement of SiRFstarIII? GPS architecture.
GSP3f (GPS Engine with integrated Processor and Flash)
GRF3w (A Highly Integrated GPS RF)
Low noise amplifier
SAW filter
TCXO
32.768KHz RTC X-tal
Reset & Regulator, etc.
Fast time-to-first-fix
Product applications
Automotive applications
Personal positioning and navigation
Mobile and PDA applications, etc
Technique specifications
Receiver type: L1 frequency, C/A Code, 20-channel
Max up-date rate: 1Hz
Accuracy (SA off): Position < 10M 2DRMS
Tracking Sensitivity: -159dBm (at the receiver input)
Operational Limits: Altitude < 18,000m (60,000ft) velocity < 515m/s
(1,000knots)
Time to First Fix (TTFF)
a) Cold start 60sec (typical)
In Cold start scenario, the receiver has no knowledge on last position, approximate
time or satellite constellation. The receiver starts to search for signals
blindly. Cold start time is the longest startup time for SiRFstarIII?.
b) Warm start 38sec (typical)
In Warm Start scenario, the receiver knows -due to a backup battery- his last
position, approximate time and almanac. Thanks to this it can quickly acquire
satellites and get a position fix faster than in cold start mode.
c) Hot start < 8sec (typical)
In Hot Start scenario, the receiver was off for less than 2 hours. It uses
its last Ephemeris data to calculate a position fix.
Re-acquisition Time 3sec. typical (within 5sec. Block out)
5sec. typical (within 60sec block out)
Protocol NMEA 0183 (Default) activated message: GLL, GGA, RMC, VTG, GSV, GSA
all with checksum enabled SiRF Binary
Size 25.5mm x 25.5mm (max. 25.5mm) x 7.61mm
Mechanical Layout
1) DIMENSION
PCB Layout
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