LEADTEK LR9101LP User Manual

LR9101LP

GPS Module

1. INTRODUCTION..................................................................................................................1

1.1. F

1.2. A

EATURES.........................................................................................................................1

DVANTAGES...................................................................................................................2

2. TECHNICAL SPECIFICATIONS.......................................................................................2

2.1. M

2.2. H

2.3. S

2.4. M

2.5. R

2.6. E

2.7. P

2.8. R

ODULE ARCHITECTURE..................................................................................................2

ARDWARE FEATURES.....................................................................................................3

OFTWARE FEATURES ......................................................................................................3

ECHANICAL SPECIFICATION ...........................................................................................3

ECOMMENDED GPS ANTENNA SPECIFICATION ..............................................................4

NVIRONMENTAL SPECIFICATION.....................................................................................4

RODUCT COMPLIANCE.....................................................................................................5

EFERENCE DESIGN ..........................................................................................................7

3. PERFORMANCE CHARACTERISTICS...........................................................................8

3.1. P

3.2. D

3.3. A

3.4. T

3.5. S

3.6. B

3.7. D

OSITION AND VELOCITY ACCURACY ................................................................................8

YNAMIC CONSTRAINS.....................................................................................................8

CQUISITION TIME

IMING 1PPS OUTPUT.......................................................................................................9

ENSITIVITY .....................................................................................................................9

ATTERY BACKUP (SRAM/RTC BACKUP) .......................................................................9

IFFERENTIAL AIDING ......................................................................................................9

..........................................................................................................8

3.7.1. Differential GPS (DGPS): Option......................... ... ................................... .............9

3.7.2. Satellite Based augmentation System (WASS/EGONS): Option..............................9

4. HARDWARE INTERFACE POWER SUPPLY...............................................................10

4.1. S

PECIFICATIONS.............................................................................................................. 10

4.1.1. Pin Positions ..........................................................................................................10

4.1.2. Pin Assignment.......................................................................................................11

5. SOFTWARE INTERFACE.................................................................................................12

5.1. NMEA

5.2. S

OUTPUT MESSAGES.............................................................................................12

IRF BINARY ..................................................................................................................12

6. MECHANICAL DRAWING AND FOOTPRINT............................................................13

6.1. O

6.2. R

UTLINE DRAWING ........................................................................................................13

ECOMMENDED FOOTPRINT (BOTTOM VIEW) .................................................................14

7. AUTOMATED MANUFACTURING COMPONENTS ..................................................15

7.1. R

7.2. P

7.3. P

EEL AND TAPING SPECIFICATIONS.................................................................................15

OLYSTYRENE ALLOY TAPING SPECIFICATIONS.............................................................16

OLYSTYRENE ALLOY TAPING DRAWING ......................................................................16

8. ROHS COMPLIANT INFORMATION............................................................................17

8.1. R

OHS SOLDERING PROFILE.............................................................................................17

Reflow Profile.........................................................................................................................17

GLOSSARY..................................................................................................................................18

LR9101LP Specifications Sheet Rev. 0.1

1. Introduction

The Leadtek GPS 9101LP module (LR9101LP) is a high sensitivity, high gain, low power and very compact Surface Mount Device (SMD). This 20-channel global positioning system (GPS) receiver is designed for a broad spectrum of OEM applications and is based on the fast and deep GPS signal search capabilities of SiRF StarIII™ single chip architecture. Leadtek GPS 9101LP is designed to allow quick and easy integration into GPS-related applications, especially for compact size devices, such as:

PDA, Pocket PC and other computing devices Fleet Management / Asset Tracking AVL and Location-Based Services Hand-held Device for Personal Positioning and Navigation

1.1. Features

Hardware and Software

Based on the high performance features of the SiRF Star III/LP single chip Built-in high gain amplifier and band pass filter RoHS compliant (lead-free) Compact module size for easy integration: 15x14x2.8 mm (590.6x551.2x110.2 mil). SMT pads allow for fully automatic assembly processes equipment and reflow soldering SiRFLocTM Client AGPS support

Performance

Cold/Warm/Hot Start Time: 42 / 38 / 1 sec. Reacquisition Time: 0.1 second RF Metal Shield for best performance in noisy environments Multi-path Mitigation Hardware

LR9101LP Specifications Sheet Rev. 0.1

Interface

TTL level serial port for GPS communications interface Protocol: NMEA-0183/SiRF Binary (default NMEA) Baud Rate: 9600, 19200 bps (default 9600)

1.2. Advantages

Ideal for compact size devices Data / Power / RF through surface mount pads Cost saving through elimination of RF and board to board digital connectors Flexible and cost effective hardware design for different application requirements Secure SMD PCB mounting method

2. Technical specifications

2.1. Module architecture

LR9101LP Specifications Sheet Rev. 0.1

2.2. Hardware Features

Based on the high performance features of the SiRF StarIII/LP single chip Built-in high gain amplifier and band pass filter Compact module size for easy integration: 15x14x2.8 mm (590.6x551.2x110.2 mil) SMT pads allow for fully automatic assembly processes equipm en t an d reflow soldering RoHS compliant (lead-free)

2.3. Software Features

The firmware used on Leadtek 9101LP module is GSW3, the software for SiRF StarIII/LP receivers, and the default configuration is as following description:

Item Description

Core of firmware SiRF GSW3 Baud rate 9600, 19200 bps (default 9600) Code type NMEA-0183 ASCII Datum WGS-84 Protocol message GGA, GSA, GSV, RMC,VTG Output frequency 1 Hz

2.4. Mechanical specification

The Physical dimensions of the Leadtek 9101LP GPS Module are as follow:

Items Description

Length 15.0 ± 0.1 mm (590.6 ± 4 mil) Width 14.0 ± 0.1 mm (551.2 ± 4 mil) Height 2.80 ± 0.3 mm (110.2 ± 12 mil) Weight 1g

LR9101LP Specifications Sheet Rev. 0.1

2.5. Recommended GPS Antenna Specification

This GPS 9101LP receiver is designed for use with passive antenna.

Parameter Specification Antenna Type Right-hand circular polarized passive antenna Frequency Range 1575.42 ± 1.023 MHz

2.6. Environmental Specification

Item Description

Operating temperature rang -30 deg. C to +85 deg. C Storage temperature range -40 deg. C to +85 deg. C Humidity Up to 95% non-condensing or a wet bulb temperature of +35 deg. C Altitude 18,000 meters (60,000 feet) max.

Velocity

515 meters/second (1000 knots) max.

Jerk 20 meters/second3, max.

Acceleration

4g, max.

LR9101LP Specifications Sheet Rev. 0.1

2.7. Product compliance

RoHS: Restriction of Hazardous Substances (RoHS) directive will come into force on 1st

July 2006; all electronic products sold in the EU must be free of hazardous materials, such as lead. Leadtek is fully committed to being one of the first to introduce lead-free GPS products while maintaining backwards compatibility and focusing on a continuously high level of product and manufacturing quality.

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