Ct-G434 GPS Engine GPS Engine Board GPS SIRF Module GPS OEM SiRFmodule GPS Receiver GPS Receiver Module GPS RS232 GPS Suppliers SiRF IV GPS star IV GPS chipset Star IV GPS module SiRF Star IV module

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Features:
- SiRF StarIV internal ROM-based ultra low power chipset
- Compact module size for easy integration : 14.7 x 13.1 x 5 mm
- Ct-G434 smart antenna module provide an I2C compliant interface to connect an optional external serial
- Operating at 1.8V signal level

The Connectec Ct-G434 is a high sensitivity, low power and very compact smart antenna module, with built in GPS receiver. This 48-channel global positioning system (GPS) receiver is designed for a wide range of OEM applications then based on the fast and deep GPS signal search capabilities of SiRFstarIV GSD4e ROM chipset, SiRF’s newest chipset technology. The Ct-G434 provides flexible I/O interfaces (UART , I2C and SPI which can be defined by customer).
Ct-G434 is designed to allow quick and easy integration into GPS-related applications such as:
- PDA, MID, and other portable devices
- Car and Marine Navigation
- Fleet Management / Asset Tracking
- AVL and Location-Based Services
- Hand-Held Device for Personal Positioning and Navigation

SiRF IV GPS Module Features
Performance
- High Performance Solution:
- High sensitivity navigation engine (PVT) tracks as low as -160dBm
- 48 track verification channels
- SBAS (WAAS or EGNOS)
- 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) – With operator support
- *2 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.
- RF Metal Shield for best performance in noisy environments
( *2, Above features should be combined with external EEPROM, please refer to application note. )

Interface
- Multiple host interfaces (UART, I2C, and SPI)
- Secondary I2C port for MEMS connection
- Protocol: NMEA-0183 (default)

Advantages
- Built-in LNA.
- Built-in internal ROM and based on Firmware 4.x.x
- *3 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.
- 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 , DSC, etc.
- Tracking sensitivity as low as -163dBm, even without network assistance.
- Support SiRF Aware technology
- Support adaptive “Micro Power Controller” power management mode
- *4 Support MEMS sensor through I2C interface. (V4.X.X firmware is available for now)
- MEMS interrupt can improve Micro Power Mode performance.
- Only 8mW 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
- Cost saving through elimination of RF and board to board digital connectors
- Flexible and cost effective hardware design for different application needs
( *3/*4, Above features should be combined with external EEPROM, please refer to application note. )

Technical specifications
Feature Item Description
Chipset GSD4e/ROM base SiRF StarIV-ROM core logic
General Frequency L1, 1575.42 MHz
C/A code 1.023 MHz chip rate
Channels 48
Sensitivity -160dB *
Accuracy Position <2.5 meters
Velocity 0.1 meters/second
Time 1 microsecond synchronized to GPS time
Datum Default WGS-84
Other selectable for other Datum
Time to First Fix
(TTFF @-130dBm) Reacquisition 0.1 sec., average
Snap start 1 sec., average
Hot start 1~2 sec.
Warm start 9~15 sec. *
Cold start 25~35 sec. *
Dynamic
Conditions Altitude 18,000 meters (60,000 feet) max.
Velocity 515 meters/second (1000 knots) max.
Acceleration 4g, max.
Jerk 20 meters/second3, max.
Power Main power input 1.71 ~ 1.89 VDC input
Power consumption Average: 46mA (Tracking Mode)
Backup Power 1.71 ~ 1.89 VDC input
Serial Port Electrical interface UART/I2C/SPI
Protocol messages NMEA-0183
Antenna Patch Antenna 12*12*2mm
Gain -1.22 dBic Max* (@ Zenith)
Polarization Right Hand Circular Polarization
Bandwidth 10 MHz Min* (@ –10dB)
Axis Ratio ≦ 5.5dB*
* Based on ground size 60* 60 mm2 size
* With external EEPROM

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