Features:
SiRF Star V ultra low power chipset
GPS, GLONASS, Galileo and SBAS reception for high GNSS availability and accuracy
Compact module size for easy integration : 15 x 14 x 2.8 mm
Fully utilized SS5 upgrade features

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, Serf'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 SiRFInstantFix
-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

SiRF V GPS Module Features
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

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
-Interrupt input for context change detection

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.