Quectel  L76

 

 

Compact GNSS Modules

 

 


Key benefits



●  Extremely compact size, 10.1 × 9.7 × 2.5mm

●  Multi-GNSS engine for combined GPS, GLONASS, and QZSS

●  EASY™, self-generated orbit prediction for instant positioning fix

●  Ultra low tracking power consumption,18mA

●  Always Locate™, an intelligent algorithm for power saving

●  LOCUS, innate logger solution with no need for host and external flash

●  High sensitivity, -165dBm@Tracking, -148dBm@Acquisition

●  99 acquisition / 33 tracking channels, up to 210PRN channels

●  Support DGPS, SBAS(WAAS/EGNOS/MSAS/GAGAN)

●  Anti-Jamming, Multi-tone Active Interference Canceller

●  Balloon mode, for high altitude up to 80km

●  PPS VS. NMEA can be used in time service




Introduction

 

 

L76 series, the smallest GNSS module, is concurrent GNSS receivers and can receive and track multiple GNSS systems. With 33 tracking channels, 99 acquisition channels, and 210 PRN channels, L76 series can acquire and track any mix of GNSS signals. L76 series module contains 3 variants: L76(GPS+GLONASS), L76B(GPS+BeiDou) and L76G(GPS+GLONASS+Galileo)*, which provides enough combination of GNSS to meet the demands of different areas.

 

Compared with using GPS only, enabling multiple GNSS systems generally increases the number of visible satellites, reduces the time to first fix and increases positioning accuracy, especially when driving in rough urban environments.

 

Combining advanced AGPS called EASY™ (Embedded Assist System) and proven AlwaysLocate™ technology, L76 series achieves the highest performance and fully meets the industrial standard. Additional feature of embedded logger function called LOCUS allows L76 series to log position information to internal flash memory at default intervals of 15 seconds and provide typically more than 16 hours log capacity without adding cost.

 

Its super performance makes L76 series ideal for automotive, industrial PDA,  consumer and industry applications. Extremely low power consumption makes it easier to be applied to power sensitive devices, especially portable applications. 

 

 

Details

 

 

General Specifications

 

L1 Band Receiver
(1575.42MHz)

Channel Number

33 (Tracking) /
99 (Acquisition)
Up to 210(PRN)

 

 

C/A Code

 

 

 

SBAS

WAAS, EGNOS, MSAS,GAGAN

 

Horizontal Position
Accuracy

Autonomous

<2.5m CEP

 

Velocity Accuracy

Without Aid

< 0.1m/s

 

Acceleration Accuracy

Without Aid

0.1 m/s2

 

Timing Accuracy

1PPS out

10ns

 

Reacquisition Time

 

<1s

 

TTFF@-130dBm
with EASYTM

Cold Start

<15s

 

 

Warm Start

<5s

 

 

Hot Start

<1s

 

TTFF@-130dBm
without EASYTM

Cold Start

<35s

 

 

Warm Start

<30s

 

 

Hot Start

<1s

 

Sensitivity

Acquisition

-148dBm

 

 

Tracking

-165dBm

 

 

Reacquisition

-160dBm

 

Environmental

Operating Temperature

-40℃ to 85℃

 

 

Storage Temperature

-45℃ to 125℃

 

Dynamic Performance

Maximum Altitude

Max.18000m

 

 

Maximum Velocity

Max.515m/s

 

 

Maximum Acceleration

4G

 

Dimensions

10.1 × 9.7 × 2.5mm

 

Weight

Approx. 0.6g

 

 

 

Serial Interfaces

 

Serial Interfaces

UART: Adjustable 4800~115200 bps
Default: 9600bps

 

Update Rate

1Hz (default), up to10Hz

 

I/O Voltage

2.7V ~ 2.9V

 

Protocols

NMEA 0183
PMTK

 

 

 

Power Management

 

Power Supply

2.8V ~ 4.3V

 

Power Acquisition

25mA(GPS+GLONASS)
21mA(GPS)

 

Power Tracking

18mA(GPS+GLONASS)
15mA(GPS)

 

Power Saving

2.6mW@AlwaysLocate™

 

 

7uA@Backup Mode

 

 

500uA@Standby Mode

 

 

Periodic Mode

 

Antenna Type

Active or Passive

 

Antenna Power

External or Internal VCC_RF