Holux M-91 SPECIFICATION

GPS Engine Board

M-91
SPECIFICATION

No.1-1, Innovation Rd.1, HsinChu City 300, Science-based Industrial Park, Taiwan

(300) 新竹市科學園區創新一路 1-1 號

TEL: [phone] FAX: [phone]

Website: www.holux.com

All Right Reserved

M-91

GPS Module series

Version Change History

THE PRO NAME IN GPS

Version

0.1 2007/06/21 Draft release

1.0 2007/07/01 Release

1.1 2007/07/09 Modify the product photo.

1.2 2007/08/15 1. Adding detail pin assignment drawing in 2.2.

1.3 2007/09/03 1. Modifying 2.1diagram to remove LNA and SAW(type B)

1.4 2008/06/05 1. Release V03 PCB ver, changed the shielding cover structure.

1.5 2009/03/09 1. Modify Fig .A-1 & A-2 reference circuit

Date Revised Reason

2. Modifying 4.1 packing drawing.

3. Modifying 6.2 reference PCB pattern

2. Adding 2.4 configuration

3. Modify the product photo.

2. Modify 2.2 Pin Definition for V03 ver

3. Modify Fig .A-2 reference circuit

4. Modify Fig .A-3 Main component list

2. Modify 2.2 Pin Definition pin18 change “NC” into “RESET”

1.6 2009/07/27 1. Modify V_BAT DC Input power

2. Modify the product photo

1.7 2010/10/25 1. Modify reference design

HOLUX Technology, Inc.
No.1-1, Innovation Rd.1, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)
TEL: [phone] FAX:[phone] E-mail:[e-mail] http:www.holux.com.tw

2

M-91

GPS Module series

THE PRO NAME IN GPS

Index

1 Introduction.............................................................................................4

1.1 General introductions .......................................................................4

1.2 Key Features......................................................................................4

1.3 Applications....................................................................................... 4

2 Technical Description.............................................................................5

2.1 Block Diagram ...................................................................................5

2.2 Pin Definition .....................................................................................5

2.3 Specification ......................................................................................7

2.4 Configuration Information................................................................8

3. Mechanical Dimension ..............................................................................9

3.1 Mechanical Dimension...................................................................... 9

TOP VIEW ................................................................................................9

4. Package ....................................................................................................10

4.1 Packing ............................................................................................10

4.2 Reference Product Photo............................................................... 11

5. User Interface........................................................................................12

5.1 NMEA Protocol................................................................................ 12

5.2 NMEA Protocol format ....................................................................12

5.3 MTK NMEA Packet Format............................................................. 13

6. Reference design..................................................................................14

6.1 Reference circuit............................................................................. 14

6.2 Reference PCB pattern................................................................... 15

6.3 Recommendation reflow profile.....................................................15

HOLUX Technology, Inc.
No.1-1, Innovation Rd.1, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)
TEL: [phone] FAX:[phone] E-mail:[e-mail] http:www.holux.com.tw

3

M-91

GPS Module series

THE PRO NAME IN GPS

1 Introduction

1.1 General introductions

M-91 is an ultra miniature 13 * 15 * 2.2 mm GPS engine board designed

by low power consumption MTK GPS solution. It provides superior
sensitivity up to -159dBm and fast Time-To-First-Fix in navigation
application. The stable performance of M-91 is your best choice to be
embedded in your portable device design, like PDA、PND、mobile
phone、Digital Camera for GPS service.

1.2 Key Features

‧ small form factor: 13* 15 * 2.2 mm
‧ RoHS/WEEE compliant
‧ High sensitivity -159 dBm
‧ Searching up to 32 Channel of satellites
‧ Fast Position Fix
‧ Low power consumption
‧ RTCM-in ready.
‧ Built-in WAAS/EGNOS/MSAS Demodulator.
‧ Support NMEA0183 V 3.01 data protocol.
‧ Real time navigation for location based services.
‧ For Car Navigation, Marine Navigation, Fleet Management, AVL and

Location-Based Services, Auto Pilot, Personal Navigation or touring
devices, Tracking devices/systems and Mapping devices application

1.3 Applications

‧ Automotive and Marine Navigation
‧ Automotive Navigator Tracking
‧ Emergency Locator
‧ Geographic Surveying
‧ Personal Positioning
‧ Sporting and Recreation
‧ Embedded applications:
‧ Smart phone, UMPC, PND, MP4

HOLUX Technology, Inc.
No.1-1, Innovation Rd.1, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)
TEL: [phone] FAX:[phone] E-mail:[e-mail] http:www.holux.com.tw

4

M-91

12 11

GPS Module series

THE PRO NAME IN GPS

2 Technical Description

2.1 Block Diagram

Option* : This LNA and SAW filter will depend on the antenna type, refer to
section 2.4 “Configuration Information”.

2.2 Pin Definition

P1

P2

P3

P4

P5

P6

P7

P8

P9

P10

P11

P22

P21

P20

P19

P18

P17

P16

P15

P14

P13

P12

Top view Button view

P22

P21

P20

P19

P18

P17

P16

P15

P14

P13

P12

22

M-91 GPS Rev: 03

17 6

2008.04.02

P1

P2

P3

P4

P5

P6

P7

P8

P9

P10

P11

HOLUX Technology, Inc.

5
No.1-1, Innovation Rd.1, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)
TEL: [phone] FAX:[phone] E-mail:[e-mail] http:www.holux.com.tw