概述
数据手册LC79D 概述
Ultra-Small Dual-Band Multi-Constellation GNSS Module
LC79D 数据手册
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PDF下载Quectel LC79D
Ultra-Small Dual-Band
Multi-Constellation GNSS Module
9.7mm
2.4mm
Featuring a concurrent mulꢀ-constellaꢀon GNSS receiver on dual GNSS bands, LC79D can work on L1 and L5 bands for GPS,
Galileo and QZSS satellites, L1 band for GLONASS and BeiDou satellites as well as L5 band for IRNSS satellite.
Compared with the GNSS modules working on L1 band only, LC79D greatly increases the number of satellites involved in
tracking and posiꢀoning, thereby significantly reducing the mulꢀpath effect caused by tall buildings in urban environments,
reducing signal acquisiꢀon ꢀme and improving posiꢀoning accuracy.
LC79D is AIS-140 compliant, and its on-board LNAs and SAW filters serve to ensure beꢁer posiꢀoning in weak signal areas
and other harsh environments. The GNSS chipset using 28nm process technology, coupled with the advanced low-power
management soluꢀon, enables low-power GNSS sensing and posiꢀoning determinaꢀon and makes the module an ideal
soluꢀon for power-sensiꢀve and baꢁery-powered systems.
Due to its excellent performance in improving posiꢀon driꢂ and enhancing posiꢀoning accuracy in rough urban canyons,
LC79D has become a popular selecꢀon for real-ꢀme tracking systems, sharing economy applicaꢀons and so on.
Key
Benefits
Ultra-compact size: 10.1mm × 9.7mm ×2.4mm
Mulꢀ-GNSS engine for GPS, GLONASS, IRNSS, BeiDou, Galileo and QZSS
Mulꢀ-constellaꢀon
L1+L5
Dual Bands
Ultra-compact
Support dual GNSS bands (L1, L5)
System
Size
Support AGNSS
Built-in LNA for beꢁer sensiꢀvity
Support SPI, UART and I2C interfaces
Support SDK command developed by Quectel
Support UDR (Untethered Dead Reckoning) in host mode
Low Power
Consumpꢀon
Wide Operaꢀon
Temperature:
-40°C to +85°C
RoHS Compliant
Rev.: V1.0 | Status: Released
EMAIL US: info@quectel.com
VISIT US: www.quectel.com
Quectel LC79D
Dual-Band GNSS Module
Region
LC79D (A)
LC79D (B)
Global
Global
Dimensions (mm)
Weight
10.1mm × 9.7mm × 2.4mm
Approx. 0.42g
10.1mm × 9.7mm × 2.4mm
Approx. 0.42g
Working Mode
Standalone Mode
Host
/
Embedded Flash
Temperature Range
Operaꢀon Temperature
●
-40°C ~ +85°C
-40°C ~ +90°C
-40°C ~ +85°C
-40°C ~ +90°C
Storage Temperature
GNSS Features
GPS L1 C/A, Galileo E1, QZSS L1: 1575.42MHz
GPS L5, Galileo E5a, QZSS L5: 1176.45MHz
IRNSS L5: 1176.45MHz
GPS L1 C/A, Galileo E1, QZSS L1: 1575.42MHz
GPS L5, Galileo E5a, QZSS L5: 1176.45MHz
IRNSS L5: 1176.45MHz
Supported Bands
GLONASS L1: 1602.5625MHz
GLONASS L1: 1602.5625MHz
BeiDou B1: 1561.098MHz
BeiDou B1: 1561.098MHz
Default GNSS Constellaꢀon
Channels
GPS+BeiDou+GLONASS+Galileo+QZSS+IRNSS
32 Channels
GPS+BeiDou+GLONASS+Galileo+QZSS+IRNSS
32 Channels
①
Horizontal Posiꢀon Accuracy
Velocity Accuracy
Autonomous: <1.2m CEP
Without Aid: <0.1m/s
Without Aid: <0.1m/s²
Cold Start: <5s
Autonomous: <1.2m CEP
①
Without Aid: <0.1m/s
①
Acceleraꢀon Accuracy
TTFF (with AGNSS)
Without Aid: <0.1m/s²
①
Cold Start: <5s
①
Cold Start: <34s
Warm Start: <30s
Hot Start: <2s
Cold Start: <34s
①
TTFF (without AGNSS)
Sensiꢀvity
Warm Start: <30s
Hot Start: <2s*
①
Acquisiꢀon: -147dBm
Tracking: -163dBm
Reacquisiꢀon: -158dBm
Acquisiꢀon: -147dBm
Tracking: -163dBm
①
①
Reacquisiꢀon: -158dBm
①
Maximum Alꢀtude: Max 18000m
Maximum Velocity: Max 515m/s
Maximum Acceleraꢀon: 4g
Maximum Alꢀtude: Max 18000m
①
Dynamic Performance
Maximum Velocity: Max 515m/s
①
Maximum Acceleraꢀon: 4g
Cerꢀꢁcaꢀons
Regulatory
CE
CE
Others
RoHS
RoHS
Interfaces
SPI Interface
I2C Interface*
②
Up to 50MHz
Mulꢀplexed from UART
●
●
Adjustable: 115200bps~921600bps
Default: 115200bps
②
UART Interface
Mulꢀplexed from SPI
Update Rate: 1Hz
I/O Voltage
Typical 1.8V
NMEA 0183
Typical 1.8V
NMEA 0183
Protocols
External Antenna Interface
Antenna Type
Passive or Acꢀve
Passive or Acꢀve
External or
Internal (through VCC_RF)
External or
Internal (through VCC_RF)
Antenna Power Supply
Electrical Features
Supply Voltage Range
1.7V~1.9V, Typical 1.8V
1.7V~1.9V, Typical 1.8V
①
Normal Operaꢀon: 47mA @Acquisiꢀon
43mA @Tracking
Normal Operaꢀon: 47mA @Acquisiꢀon
①
43mA @Tracking
Current Consumpꢀon
(@1.8V)
①
Power Saving Modes: 200μA @Sleep Mode
17μA @Standby Mode
Power Saving Modes: 200μA @Sleep Mode
17μA @Standby Mode
①
Notes:
①
1. Preliminary data
②
2. Under planning
3. * Under development
4. ● means supported
Copyright
HQ address: Building 5, Shanghai Business Park Phase III (Area B), No.1016 Tianlin Road, Minhang District, Shanghai, China 200233
Tel: +86 21 51086236 Email: info@quectel.com
© 2019 Quectel Wireless Soluꢀons Co., Ltd. All Rights Reserved hꢁp://www.quectel.com
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