Table of Contents
1
Description
1
Features
1
Applications
2
Ordering Information
2
Absolute Maximum Ratings
2
Electrical Specifications
4
Pin Assignments
4
Pin Descriptions
5
A Brief Overview of GPS
5
Client Generated Extended Ephemeris (CGEE)
6
Time To First Fix (TTFF)
6
Module Description
7
Backup Battery
7
Power Supply Requirements
7
The 1PPS Output
8
Antenna Considerations
9
Power Control
10
Slow Start Time
10
Protocols
11
Interfacing with NMEA Messages
12
Interfacing with NMEA Messages
17
NMEA Input Messages
24
Typical Applications
25
Master Development System
26
Board Layout Guidelines
27
Pad Layout
28
Microstrip Details
29
Production Guidelines
29
Hand Assembly
Warning:
Some customers may want Linx radio frequency (“RF”)
products to control machinery or devices remotely, including machinery
or devices that can cause death, bodily injuries, and/or property
damage if improperly or inadvertently triggered, particularly in industrial
settings or other applications implicating life-safety concerns (“Life and
Property Safety Situations”).
NO OEM LINX REMOTE CONTROL OR FUNCTION MODULE
SHOULD EVER BE USED IN LIFE AND PROPERTY SAFETY
SITUATIONS.
No OEM Linx Remote Control or Function Module
should be modified for Life and Property Safety Situations. Such
modification cannot provide sufficient safety and will void the product’s
regulatory certification and warranty.
Customers may use our (non-Function) Modules, Antenna and
Connectors as part of other systems in Life Safety Situations, but
only with necessary and industry appropriate redundancies and
in compliance with applicable safety standards, including without
limitation, ANSI and NFPA standards. It is solely the responsibility
of any Linx customer who uses one or more of these products to
incorporate appropriate redundancies and safety standards for the Life
and Property Safety Situation application.
Do not use this or any Linx product to trigger an action directly
from the data line or RSSI lines without a protocol or encoder/
decoder to validate the data.
Without validation, any signal from
another unrelated transmitter in the environment received by the module
could inadvertently trigger the action.
All RF products are susceptible to RF interference that can prevent
communication.
RF products without frequency agility or hopping
implemented are more subject to interference. This module does not
have a frequency hopping protocol built in.
Do not use any Linx product over the limits in this data guide.
Excessive voltage or extended operation at the maximum voltage could
cause product failure. Exceeding the reflow temperature profile could
cause product failure which is not immediately evident.
Do not make any physical or electrical modifications to any Linx
product.
This will void the warranty and regulatory and UL certifications
and may cause product failure which is not immediately evident.
!
