LEA-6T授时GPS模块
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详细信息

LEA-6T    2011年全新现货

50通道的u - blox公司6接收机

GPS C / A码
更新率：5赫兹，2赫兹

Highlights
? Precision Timing:
- 2 timepulse outputs (up to 10 MHz)
- Output timepulse with at least one satellite in view
- Stationary mode for GPS timing operation
- Time mark of external event inputs
? Raw data
? Onboard non-volatile memory for configuration storage
? UART, USB and DDC (I2C compliant) interfaces
? Onboard RTC Crystal for faster warm and hot starts
Features
? u-blox 6 position engine:
- Navigate down to -160 dBm and -147 dBm coldstart
- Configurable power management
- Hybrid GPS/SBAS engine (WAAS, EGNOS, MSAS, GAGAN)
- Up to 5 Hz navigation rate
- Anti-jamming technology
? A-GPS: AssistNow Online and AssistNow Offline services,
OMA SUPL compliant
? Backward compatible (hardware and firmware); easy
migration from LEA-5T or LEA-4T
? Based on AEC-Q100 qualified GPS chips
? Manufactured in ISO/TS 16949 certified sites
? LCC package for reliable and cost effective manufacturing
? Operating temperature range: -40 to 85°C
The LEA-6T provides precision GPS timing for demanding
positioning applications such as femto cells and WiMAX basestations.
This module features user configurable frequency
output and timepulse. An accuracy of up to 15 ns is achievable
by using the quantization error information to compensate the
granularity of the time pulse. The LEA-6T features a time mode
function whereby the GPS receiver assumes a stationary 3D
position, whether programmed manually or determined by an
initial self-survey.
During stationary operation GPS timing is possible with only
one visible satellite. This means that time can be output even
under adverse signal conditions or in environments with poor
sky visibility. A built-in time mark and counter unit provide
precise time measurement of external event inputs. T-RAIM
(Timing Receiver Autonomous Integrity Monitoring) is available
to detect faulty GPS measurements. Raw data is also provided.
LEA-6T modules are based on AEC-Q100 qualified GPS chips
and are manufactured in ISO/TS 16949 certified sites. Qualification
tests on LEA-6T modules are performed as stipulated in
the ISO16750 standard: “Road vehicles – Environmental conditions
and testing for electrical and electronic equipment”.
? Microsoft? certified USB driver
Receiver type 50-channel u-blox 6 engine
GPS L1 C/A code
SBAS: WAAS, EGNOS, MSAS, GAGAN
Navigation update rate up to 5 Hz
Accuracy1 Position 2.5 m CEP
SBAS 2.0 m CEP
Acquisition1 Cold starts: 29 s
Aided starts2: < 1 s
Hot starts: < 1 s
Sensitivity3 Tracking: –160 dBm
Reacquisition: –160 dBm
Cold starts: –147 dBm
Hot starts: –156 dBm
1 All SV @ –130 dBm
2 Dependent on aiding data connection speed and latency
3 Demonstrated with a good active antenna
Electrical data
Timing accuracy RMS 30 ns
99% < 60 ns
Granularity 21 ns
Compensated 15 ns4
4 Quantization error information can be used to compensate the granularity
Power supply 2.7-3.6 V
Power consumption 119 mW @ 3.0 V (Max. Performance)
115 mW @ 3.0 V (Eco mode)
Backup power 1.4-3.6 V, 25 μA
Supported Antennas Active and passive
Antenna power External or internal VCC_RF
Antenna supervision Integrated short-circuit detection and
antenna shutdown, open circuit detection
with minimal external circuitry
Serial interfaces 1 UART
1 USB V2.0 full speed 12 Mbit/s
1 DDC (I2C compliant)
Digital I/O 2 configurable timepulse
1 EXTINT input
1 reset
Serial and I/O voltages 2.7-3.6 V
Timepulse Configurable 1/60 Hz to 10 MHz
Time mark / Counter 1 Input
Protocols NMEA, UBX binary
Operating temp. –40° C to 85° C
Storage temp. –40° C to 85° C
Humidity JEDEC MSL 4
RoHS compliant (lead-free)