GPS with Embedded Patch Antenna
[0002]

L80 GPS module with an embedded patch antenna (15mmx15mmx4mm) and LNA brings high
performance of MTK positioning engine to the industrial applications. It is able to achieve the industry’s highest level of sensitivity, accuracy and TTFF with the lowest power consumption in a small-footprint lead-free package. With 66 search channels and 22 simultaneous tracking channels, it acquires and tracks satellites in the shortest time even at indoor signal level. The embedded flash memory provides capacity for users to store some useful navigation data and allows for future updates.

L80 module combines with many advanced features including EASY, AIC, LOCUS, AlwaysLocateT M and Antenna Advisor. These features are beneficial to accelerate TTFF, improve sensitivity, save consumption and detect antenna status for GPS system. The module supports various location, navigation and industrial applications including autonomous GPS, SBAS (including WAAS, EGNOS,MSAS, and GAGAN), QZSS, and AGPS.

Module Key Features:

Power Supply ? Supply Voltage: 2.8V ~ 4.3V typical : 3.3V
Power Consumption:
> Acquisition 25mA@ VCC=V_BCKP=3.3V
> Tracking 20mA@ VCC= V_BCKP =3.3V
> Standby 1.0mA @ VCC= V_BCKP =3.3V
> Backup 7uA@ V_BCKP=3.3V
Receiver Type:
> GPS L1 1575.42MHz C/A Code
> 66 search channels, 22 simultaneous tracking channels
Sensitivity:
> Acquisition -148dBm
> Re-acquisition -160dBm
> Tracking -165dBm
TTFF (EASY enabled):
> Cold Start 15s typ.@-130dBm
> Warm Start 5s typ.@-130dBm
> Hot Start 1s typ. @-130dBm
TTFF (EASY disabled):
> Cold Start (Autonomous) 35s typ.@-130dBm
> Warm Start (Autonomous) 30s typ.@-130dBm
> Hot Start (Autonomous) 1s typ.@-130dBm
Horizontal Position
Accuracy (Autonomous)
> <2.5m CEP@-130dBm
Max Update Rate ? Up to 10Hz,1Hz by default
Accuracy of 1PPS Signal
> Typical accuracy <15ns (Time service is not supported)
> Time pulse width 100ms
Velocity Accuracy ? Without Aid 0.1m/s
Acceleration Accuracy ? Without Aid 0.1m/s²
Dynamic Performance
> Maximum Altitude 18,000m
> Maximum Velocity 515m/s Maximum
> Acceleration 4G
UART Port
> UART Port: TXD1 and RXD1
> Supports baud rate from 4800bps to 115200bps,9600bps by default
> UART port is used for NMEA output, MTK proprietary commands
input and firmware upgrade
Temperature Range
> Normal operation: -40°C ~ +85°C
> Storage temperature: -45°C ~ +125°C
Physical Characteristics
> Size: 16±0.15 x 16±0.15 x 6.45±0.1mm
> Weight: Approx. 6.0g
Interface: Serial UART 
Supply 5v to 9v DC