DM1103

1. SYSTEM OVERVIEW

1.1 General Description

DM1103 is a high-performance mini PCIe-form GNSS module based on Allystar TAU1103 which is with the state-of-the-art Allystar Cynosure III Lite architecture. It has a Full-Mini size and Half-mini size. It supports global civil navigation systems, including GPS, BDS, GLONASS, Galileo, and QZSS. Featured with SAW and LNA, it achieves high positioning accuracy and short TTFF, especially in a harsh urban environment. The standard mini PCIe interface makes these modules easy to integrate into the laptop, industrial PC, and other applications.

1.2 Features

Supports GPS, BDS, Galileo, GLONASS, and QZSS systems Built-in LNA & SAW for better sensitivity Supports A-GNSS Supports geo-fence function Ultra-low power consumption around 13mA in tracking mode Supports antenna supervision

P/N	Option	GPS/QZSS	BDS	GLONASS	Galileo
		L1 C/A	B1I	L1	E1
DM1103-P0	Full-mini PCIe	●	-	●	●
DM1103-P1	Half-mini PCIe	●	-	●	●

1.3 Block diagram

1.4 Specifications

Parameters	Specification
GNSS tracking channels	72 channels GPS/QZSS: L1C/A Galileo: E1 GLONASS: L1OF
Updating rate	1 Hz (Default), up to 5 Hz
Position accuracy	GNSS	< 1.5 m CEP @ Open Sky
Velocity & Time accuracy	GNSS	0.1 m/s CEP
	1PPS	20ns
Time to First Fix(TTFF)	Hot start	1 s
	Cold start	28 s
Sensitivity	Cold start	-149 dBm
	Reacquisition	-159 dBm
	Tracking	-163 dBm
Power supply	VDD	2.0-3.63 V, Typical 3.3 V
Power consumption	Operating mode	Acquisition	15mA @3.3V
		Tracking	13mA @3.3V
	Standby mode	10uA
Interface	USB
PPS signal accuracy	Typical ±1ms for PPS through USB [1]
Protocol	NMEA 0183 Protocol Ver.3.01/4.00 (Default)/4.10
Operating limit	Velocity	515 m/s
	Altitude	18,000 m
Temperature	Operating temperature	-40०C ~ +85०C
	Storage temperature
Certification	RoHS & REACH