Leadtek LR9101 User Manual

LR9101

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.....................................................................................................4

EFERENCE DESIGN ..........................................................................................................5

3. PERFORMANCE CHARACTERISTICS...........................................................................6

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 ................................................................................6

YNAMIC CONSTRAINS.....................................................................................................6

CQUISITION TIME

IMING 1PPS OUTPUT.......................................................................................................7

ENSITIVITY .....................................................................................................................7

ATTERY BACKUP (SRAM/RTC BACKUP) .......................................................................7

IFFERENTIAL AIDING ......................................................................................................7

..........................................................................................................6

3.7.1. Differential GPS (DGPS).........................................................................................7

3.7.2. Satellite Based augmentation System (WASS/EGONS) ...........................................7

4. HARDWARE INTERFACEPOWER SUPPLY..................................................................8

4.1.

SPECIFICATIONS................................................................................................................8

4.1.1. Pin Positions ............................................................................................................8

4.1.2. Pin Assignment.........................................................................................................9

5. SOFTWARE INTERFACE.................................................................................................10

5.1. NMEA

5.2. S

OUTPUT MESSAGES.............................................................................................10

IRF BINARY ..................................................................................................................10

6. MECHANICAL DRAWING AND FOOTPRINT............................................................11

6.1. O

6.2. R

UTLINE DRAWING ........................................................................................................11

ECOMMENDED FOOTPRINT ( BOTTOM VIEW )................................................................12

7. AUTOMATED MANUFACTURING COMPONENTS ..................................................13

7.1. R

7.2. P

7.3. P

EEL AND TAPING SPECIFICATIONS.................................................................................13

OLYSTYRENE ALLOY TAPING SPECIFICATIONS.............................................................14

OLYSTYRENE ALLOY TAPING DRAWING ......................................................................14

8. ROHS COMPLIANT INFORMATION............................................................................15

8.1. R

OHS SOLDERING PROFILE.............................................................................................15

Reflow Profile.........................................................................................................................15

GLOSSARY..................................................................................................................................16

LR9101 Specifications Sheet Rev. 0.5

1. Introduction

The Leadtek GPS 9101 module (LR9101) is a high sensitivity, high gain, low po wer 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 SiRFStarIII™ architecture. Leadtek GPS 9101 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 single chip Built-in high gain amplifier and bandpass 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 Sta r t Time: 42 / 38 / 1 sec. Reacquisition Time: 0.1 second RF Metal Shield for best performance in noisy environments Multi-path Mitigation Hardware

LR9101 Specifications Sheet Rev. 0.5

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

LR9101 Specifications Sheet Rev. 0.5

2.2. Hardware Features

Based on the high performance features of the SiRF Star III single chip Built-in high gain amplifier and bandpass filter

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 RoHS compliant (lead-free)

2.3. Software Features

The Leadtek 9101 module includes GSW3, the SiRF standard GPS software for SiRFStarIII receivers, the default configuration is as follows:

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, GLL, RMC,VTG Output frequency 1 Hz

2.4. Mechanical specification

The Physical dimensions of the Leadtek 9101 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

LR9101 Specifications Sheet Rev. 0.5

2.5. Recommended GPS Antenna Specification

This GPS 9101 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 -40 deg. C to +85 deg. C Storage temperature range -55 deg. C to +100 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 Jerk 20 meters/second3, max.

Acceleration 4g, max.

2.7. Product compliance

RoHS: Restriction of Hazardous Substances (RoHS) directive will com e 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.

FCC/CE: The Federal Communications Commission (FCC) is an independent United States

government agency, directly responsible to Congress. The FCC is charged with regulating

515 meters/second (1000 knots) max.

interstate and international communications by radio, television, wire, satellite and cable. The FCC’s jurisdiction covers the 50 states, the District of Columbia, and U.S. possessions.

LR9101 Specifications Sheet Rev. 0.5

2.8. Reference design

All ground pads attach directly to ground plane by way of via. All components are reference only

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Leadtek LR9101 User Manual

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