Compact Standalone GPS Smart Antenna Module for Automotive and Handheld Applications

MediaTek-Based GPS Receiver with Embedded Patch Antenna, Low Power Consumption, and Fast Cold Start Performance

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How Can We Reduce Power Consumption and Size in Next-Generation Automotive Navigation Systems?

The LS2003D smart antenna consumes only 17mA while integrating both antenna and receiver in a compact 21x17x7.2mm footprint, eliminating RF connectors and coaxial cables. With direct lithium battery connection and built-in DC/DC converter, you can simplify your design, reduce BOM costs, and accelerate time-to-market. Contact us to receive integration guidelines and power optimization specifications for your automotive navigation platform.

The LS2003D features hybrid ephemeris prediction technology to achieve exceptional cold start performance under 15 seconds. The self-generated EASY ephemeris prediction operates autonomously for up to 3 days without network assistance, while the server-generated EPO prediction extends validity to 14 days through internet connectivity. Both predictions are stored in on-board flash memory for instant availability. This smart antenna eliminates the need for RF connectors and coaxial cables required by separated GPS active antennas, reducing both cost and size while accelerating time-to-market by removing RF matching and stability concerns. With capabilities including up to 10Hz update rate, ±11ns high-accuracy time pulse (1PPS), Japan QZSS support, built-in data logger, and multi-path detection and compensation, the LS2003D is the optimal choice for automotive navigation, handheld devices, marine navigation, weather balloons, and personal positioning applications requiring miniature size and brilliant performance.

LS2003D

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LS2003D

LS2003D is a complete standalone GPS smart antenna module, including embedded patch antenna and GPS receiver circuits.
LS2003D is a complete standalone GPS smart antenna module, including embedded patch antenna and GPS receiver circuits.

LS2003D is a complete standalone GPS smart antenna module, including embedded patch antenna and GPS receiver circuits. The module's functionality is using MediaTek All-in-One GPS chip, MT3339, and it can acquire a lot of satellites at
a time while providing fast time-to-first-fix and low power consumption. Besides, it can provide you with superior sensitivity and performance even in urban canyon and dense foliage environment.

This module supports hybrid ephemeris prediction to achieve faster cold start. One is self-generated ephemeris prediction (called EASY) that is no need of both network assistance and host CPU's intervention.

This is valid for up to 3 days and updates automatically from time to time when GPS module is powered on and satellites are available. The other is server-generated ephemeris prediction (called EPO) that gets from an internet server. This is valid for up to 14 days. Both ephemeris predictions are stored in the on-board flash memory and perform a cold start time less than 15 seconds.

It is easy to install without both RF connector and coaxial cable that are needed in a separated GPS active antenna. In other words, reduce the cost and size. Also, speed up the time to market by eliminating
R&D efforts on RF matching and stability between separated GPS antenna and module. Furthermore, it can be directly powered by a lithium battery without any external voltage regulars. Therefore, LS2003D of miniature size and brilliant performance is the best choice to be integrated into your slim devices.

Features

  • MediaTek high sensitivity solution.
  • Support 66-channel GPS.
  • Ultra low power consumption.
  • Fast TTFF at low signal level.
  • Built-in 12 multi-tone active interference canceller.
  • Free hybrid ephemeris prediction to achieve faster cold start.
  • Built-in data logger.
  • Built-in DC/DC converter to save power.
  • Allow direct connection with the lithium battery.
  • Up to 10 Hz update rate.
  • ± 11ns high accuracy time pulse (1PPS).
  • Capable of SBAS (WAAS, EGNOS, MSAS, GAGAN).
  • Support Japan QZSS Indoor and outdoor multi-path detection and compensation.
  • RoHS compliant.

Specification

  • Memory: Flash
  • Satellite System: GPS + QZSS
  • Interface: UART
  • Input Voltage: 3.0V - 4.3V
  • Power (mA): 17mA
  • Operating Temp (°C): -40 ~ 85
  • Dimension (mm): 21 x 17 x 7.2mm
  • Antenna Size (mm): 15 x 15 x 4mm
  • Connection: 1.0mm Pitch Connector

Applications

  • Personal positioning and navigation
  • Automotive navigation
  • Marine navigation
  • Weather balloon

                        

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