Navman LA000508 - Manual (Page 2)

LA000507G © 2006 Navman New Zealand. All rights reserved. Proprietary information and specifications subject to change without notice.
Contents
1.0 Introduction .......................................................................................................4
2.0 Technical description .......................................................................................4
2.1 Product applications ..................................................................................................... 4
2.2 Receiver architecture ................................................................................................... 4
2.3 Major components of the Jupiter 20 ............................................................................. 5
2.4 Physical characteristics ................................................................................................ 5
2.5 Mechanical specification .............................................................................................. 5
2.6 External antenna surface mount pads ......................................................................... 5
2.7 I/O and power connections........................................................................................... 5
2.8 Environmental .............................................................................................................. 6
2.9 Compliances ................................................................................................................ 6
2.10 Marking/Serialisation .................................................................................................. 6
3.0 Performance characteristics ...........................................................................6
3.1 TTFF (Time To First Fix) ............................................................................................... 6
3.1.1 Hot start ................................................................................................................ 6
3.1.2 Warm start ............................................................................................................ 6
3.1.3 Cold start .............................................................................................................. 6
3.2 Acquisition times .......................................................................................................... 7
3.3 Timing 1PPS output ..................................................................................................... 7
3.4 Battery backup (SRAM/RTC backup) .......................................................................... 7
3.5 TricklePower mode ....................................................................................................... 7
3.5.1 Adaptive TricklePower mode ................................................................................ 7
3.5.2 Push‑To‑Fix mode ................................................................................................ 7
3.6 Differential aiding ......................................................................................................... 8
3.6.1 Differential GPS (DGPS) ...................................................................................... 8
3.6.2 Satellite Based Augmentation Systems (SBAS) including WAAS and EGNOS .. 8
3.7 Navigation modes ......................................................................................................... 8
3.8 Core processor performance ....................................................................................... 8
3.9 Sensitivity ..................................................................................................................... 8
3.10 Dynamic constraints ................................................................................................... 9
3.11 Position and velocity accuracy .................................................................................... 9
4.0 Electrical requirements ....................................................................................9
4.1 Power supply ................................................................................................................ 9
4.1.1 Primary power ....................................................................................................... 9
4.1.2 Low supply voltage detector ................................................................................. 9
4.1.3 VCC_RF power supply ......................................................................................... 9
4.1.4 External antenna voltage .....................................................................................10
4.1.5 RF (Radio Frequency) input .................................................................................10
4.1.6 Antenna gain ........................................................................................................10
4.1.7 Burnout protection ...............................................................................................10
4.1.8 Jamming performance .........................................................................................10
4.1.9 Flash upgradability ...............................................................................................10
4.1.10 Reset input .........................................................................................................10
4.2 Data input output specifications .................................................................................11
4.2.1 Voltage levels ......................................................................................................11
4.2.2 I/O surface mount pads.......................................................................................11