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LA000577C © 2006 Navman New Zealand. All rights reserved. Proprietary information and specications subject to change without notice.
Contents
1.0 Introduction .......................................................................................................4
2.0 Hardware application information................................................................... 4
2.1 Electrical connections (SMT pad interface) .................................................................. 4
2.2 Physical dimensions
..................................................................................................... 6
2.3 Manufacturing process recommendations ................................................................... 6
2.3.1 Reow recommendations ..................................................................................... 6
2.3.2 Connection pad material ...................................................................................... 6
2.3.3 Solder paste mask size ........................................................................................ 7
2.3.4 Solder paste type ................................................................................................. 7
2.3.5 Coating ................................................................................................................. 7
2.3.6 Post reow washing ............................................................................................. 7
2.3.7 Pre-baking ............................................................................................................ 7
2.3.8 Rework ................................................................................................................. 7
2.4 Typical application circuit ............................................................................................. 7
2.4.1 Power for receiver and active antenna
................................................................. 7
2.4.2 Grounding ............................................................................................................ 7
2.4.3 Decoupling ........................................................................................................... 8
2.4.4 Serial RS232 data level shifter ............................................................................. 9
2.4.5 External RF lter .................................................................................................. 9
2.5 PCB design recommendations ..................................................................................... 9
2.5.1 Recommended PCB pad layout ........................................................................... 9
2.5.2 General recommendations ................................................................................... 9
2.6 Antenna system design choices
..................................................................................12
2.6.1 Antenna types
.....................................................................................................12
2.6.2 Active antenna ....................................................................................................12
2.6.3 Passive antenna ..................................................................................................13
2.6.4 Jupiter module used as a GPS sensor................................................................13
2.6.5 DC supply protection for an active antenna ........................................................14
2.7 Jupiter adapter printed circuit board ............................................................................16
3.0 Software application information .................................................................. 17
3.1 Normal mode operation ...............................................................................................17
3.2 Power management
....................................................................................................17
3.2.1 Adaptive TricklePower mode ...............................................................................18
3.2.2 Push-to-Fix mode ...............................................................................................18
3.3 Serial I/O .....................................................................................................................18
3.3.1 Default settings ....................................................................................................18
3.3.2 NMEA input commands ......................................................................................18
3.3.3 Altitude output .....................................................................................................19
3.4 Navman proprietary NMEA low power mode messages
........................................... 20
3.4.1 Low power conguration ..................................................................................... 20
3.4.2 Low power acquisition conguration .................................................................. 20
3.5 Control of GPIO connections via serial commands (Jupiter 20) ................................ 20
3.5.1 Congure port directions .....................................................................................21
3.5.2 Set outputs ..........................................................................................................21
3.5.3 Clear outputs .......................................................................................................21
3.5.4 Read inputs .........................................................................................................21
3.6 GPS x output .............................................................................................................21
3.7 Antenna power monitor messages
............................................................................. 22
3.8 Custom application software ...................................................................................... 22
4.0 Glossary and acronyms .................................................................................23