The Ct-G551 GPS module is a high sensitivity, low power, Surface Mount Device (SMD) that fully utilized SiRFstarV upgraded features. This 48-channel Global Positioning System (GPS) and Global Navigation Satellite System (GLONASS) receiver is designed for a wide range of OEM applications and is based on the GPS signal search capabilities of the SiRFstarV CSRG05e ROM chipset, SiRF’ s newest chipset technology. The Ct-G551 provides flexible bus interfaces (UART).
The Ct-G551 is designed to allow quick and easy integration into GPS-related applications
such as:
Mobile gaming
Cellular handsets
Cameras
Asset tracking
Other location-aware consumer devices Premium on-chip software provides a new
level of continuous location awareness by employing.
Opportunistic ephemeris decode and advanced power management, which enable
the GPS receiver to stay in a hot-start condition nearly continuously while consuming
very little power
Full support for client-based and server-based SiRFInstantFixTM
Dynamic contextual awareness, temperature monitoring, and MEMS sensors that work
in concert to conserve power and boost performance
Use of software control modules to achieve power saving state
Hardware and Software
Based on the high performance features of the SiRF Star V low power single chipset.
Adaptive Micropower Controller:
Only 50 to 500μA maintains hot start capability
<10mW required for TricklePower™ modeRoHS compliant (lead-free)
SMT pads allow for fully automatic assembly processes equipment and reflow soldering
Advanced Navigation Features:
Smart sensor I²C interface
Performance
Highest performance Solution :
GPS, GLONASS, Galileo and SBAS reception for high GNSS availability and accuracy
High sensitivity navigation engine (PVT) tracks as low as GPS:-164dBm、
GLONASS:-161dBm
48 track verification channels
SBAS (WAAS or EGNOS,MSAS)
Active Jammer Remover:
Removes in-band jammers up to 80 dB-Hz
Tracks up to 8 CW jammers
Multimode A-GPS (Autonomous, MS-Based, and MS-Assisted) – Need operator support
Embedded CGEE / SGEE (With back-end server support) speed up TTFF a lot and
makes cold start time to be around 20+ seconds.
SiRFGeoRecovTM Reverse EE makes positioning process being done under power
saving mode.
Reacquisition Time: 0.1 second
RF Metal Shield for best performance in noisy environments
Advantages
Built-in LNA.
Built-in internal ROM and based on Firmware 4.1.X
It can remove in-band jammer up to 80db-Hz and track up to 8CW jammers, so the
module can prevent GPS signal interference when design-in the electrical device with
noisy electrical signal interferences such as Laptop, mobile phone, DSC, etc.
Maintain tracking sensitivity as low as GPS:-164dBm、GLONASS:-161dBm, even
without network assistance. (SiRF StarIII has only -159dBm sensitivity)
Support SiRFaware technology :
Support adaptive “Micro Power Controller” power management mode.
<10mW Trickle Power, so user can leave power on all day instead of power off
Suitable for battery drive devices that need lower power consumption application
Ideal for high volume mass production(Taping reel package)
Cost saving through elimination of RF and board to board digital connectors
Flexible and cost effective hardware design for different application needs
Embed CGEE (Client Generated Extended Ephemeris) that can capture ephemeris data
from satellites locally and predicts ephemeris out to 3 days. So if the module was off
within 3 days, it could complete positioning process with limited time just like hot start.
