SE867-AGPS User Guide
1VV0300860 Rev. 3 - 2010-05-10
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 3 of 69
Contents
1.
Introduction ................................................................................................................ 7
1.1.
Audience ........................................................................................................................... 7
1.2.
Contact Information, Support ........................................................................................... 7
1.3.
Text Conventions .............................................................................................................. 7
1.4.
Related Documents .......................................................................................................... 8
1.5.
Document change log ....................................................................................................... 8
2.
Overview ..................................................................................................................... 9
3.
Mechanical Dimensions.............................................................................................10
4.
GPS module connections ...........................................................................................12
4.1.
PIN-OUT ......................................................................................................................... 12
4.2.
Pin-out view.................................................................................................................... 13
5.
Electrical description ................................................................................................14
5.1.
Available power supply configurations ........................................................................... 14
5.1.1.
Configuration 1 .................................................................................................................................. 14
5.1.2.
Configuration 2 .................................................................................................................................. 16
5.1.3.
Configuration 3 .................................................................................................................................. 17
5.2.
Power-On Sequence ....................................................................................................... 19
5.3.
Logic levels..................................................................................................................... 19
6.
RF path and antenna .................................................................................................21
6.1.
RF design guidlines ........................................................................................................ 21
6.2.
GPS antenna PCB line guidelines ................................................................................... 23
6.3.
Antenna installation guidelines ...................................................................................... 23
7.
Connection guidelines ...............................................................................................24
7.1.
Reset .............................................................................................................................. 24
7.2.
WAKE1 ............................................................................................................................ 24
7.3.
PPS and RTC crystal ....................................................................................................... 24
7.4.
RFEN and RFXEN............................................................................................................ 25
7.5.
BOOTSEL and flash mode ............................................................................................... 25
8.
Mounting the SE867-AGPS on the application board .................................................26
