Difference between revisions of "DM1103"
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== 1. SYSTEM OVERVIEW == | == 1. SYSTEM OVERVIEW == | ||
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=== 1.1 General Description === | === 1.1 General Description === | ||
Revision as of 17:48, 29 May 2024
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 [1] | ||
| 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 | ||
[1]: get PPS by checking DCD. PPS accuracy is related to USB poll interval.
2 PIN DESCRIPTION
2.1 Detailed Pin Descriptions
| Pin# | Name | Pin# | Name |
|---|---|---|---|
| 1-3 | NC | 4 | GND |
| 5-8 | NC | 9 | GND |
| 10-14 | NC | 15 | GND |
| 16-17 | NC | 18 | GND |
| 19 | NC | 20 | W_DISABLE# |
| 21 | GND | 22-25 | NC |
| 26-27 | GND | 28 | NC |
| 29 | GND | 30-33 | NC |
| 34-35 | GND | 36 | USB_D- |
| 37 | GND | 38 | USB_D+ |
| 39 | NC | 40 | GND |
| 41-42 | NC | 43 | GND |
| 44-49 | NC | 50 | GND |
| 51 | NC | 52 | +3.3Vaux |