Linx-technologies RXM-GPS-SG User Manual

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DESCRIPTION
The SG Series GPS receiver module is a self-
contained high-performance GPS receiver with an
on-board LNA and SAW filter. Based on the SiRFstar
III chipset, it provides exceptional sensitivity, even in
dense foliage and urban canyons. The module’s very
low power consumption helps maximize runtimes in
battery powered applications. With over 200,000
effective correlators, the SG Series receiver can
acquire and track up to 20 satellites simultaneously in
just seconds, even at the lowest signal levels.
Housed in a compact reflow-compatible SMD
package, the receiver requires no programming or
additional RF components (except an antenna) to form a complete GPS solution.
Five GPIOs are easily configured through simple serial commands. These features,
along with the module’s standard NMEA data output, make the SG Series easy to
integrate, even by engineers without previous RF or GPS experience.
SG SERIES GPS RECEIVER MODULE DATA GUIDE
WIRELESS MADE SIMPLE
®
Revised 1/10/11
Figure 1: Package Dimensions
GPS MODULE
RXM-GPS-SG
LOT GRxxxx
0.591
(15.00)
0.512
(13.00)
0.087
(2.20)
APPLICATIONS INCLUDE
n Positioning and Navigation
n Location and Tracking
n Security/Loss-Prevention
n Surveying
n Logistics
n Fleet Management
n SiRF Star III chipset
n 200,000+ correlators
n Low power consumption (46mW)
n High sensitivity (-159dBm)
n 20 channels
n Fast TTFF at low signal levels
n Battery-backed SRAM
n 5 User Definable GPIOs
n No programming necessary
n No external RF components needed
(except an antenna)
n No production tuning
n Direct serial interface
n Power down feature
n Compact surface-mount package
n Manual or reflow compatible
n RoHS compliant
FEATURES
PART # DESCRIPTION
RXM-GPS-SG-x GPS Receiver Module
MDEV-GPS-SG Master Development System
x = “T” for Tape and Reel, “B” for Bulk
Reels are 1,000 pcs.
Quantities less than 1,000 pcs. are supplied in bulk
ORDERING INFORMATION
RXM-GPS-SG
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Summary of Contents

Page 1 - RXM-GPS-SG

DESCRIPTIONThe SG Series GPS receiver module is a self-contained high-performance GPS receiver with anon-board LNA and SAW filter. Based on the SiRFst

Page 2 - *CAUTION*

104 – LLANavigationInitializationThis command was used to initialize the receiver with the current position (inlattitude, longitude and altitude coord

Page 3 - A BRIEF OVERVIEW OF GPS

200 – PowerManagementThe table below contains the values for the following example to set the receiverto Adaptive Trickle Power mode:$PLSC,200,2,300,1

Page 4 - Page 6 Page 7

Page 23The receiver outputs a response to this command. The table below contains theresponse for the above command:$PLSR,200,1,2,300,1000,300000,30000

Page 5 - SLOW START TIME

Page 25Page 24212 – ReadInputThe table below contains the values for the following example to read the stateof an input:$PLSC,212,1*0CThe receiver out

Page 6 - PROTOCOLS

Page 26 Page 27MASTER DEVELOPMENT SYSTEMThe SG Series Master Development System provides all of the tools necessaryto evaluate the SG Series GPS recei

Page 7 - Page 12 Page 13

Page 29Dielectric Constant Width/Height (W/d)Effective DielectricConstantCharacteristicImpedance4.80 1.8 3.59 50.04.00 2.0 3.07 51.02.55 3.0 2.12 48.0

Page 8 - NMEA INPUT MESSAGES

AUTOMATED ASSEMBLYFor high-volume assembly, most users will want to auto-place the modules. Themodules have been designed to maintain compatibility wi

Page 9 - $PSRF100,0,9600,8,1,0*0C

LINX TECHNOLOGIES, INC.159 ORT LANEMERLIN, OR 97532PHONE: (541) 471-6256FAX: (541) 471-6251www.linxtechnologies.comU.S. CORPORATE HEADQUARTERSWIRELESS

Page 10 - Page 18 Page 19

ELECTRICAL SPECIFICATIONS*CAUTION*This product incorporates numerous static-sensitive components.Always wear an ESD wrist strap and observe proper ESD

Page 11 - $PLSC,200

PIN ASSIGNMENTSNC1NC21PPS3TXA4RXA5GND21GPIO106LCKIND7GPIO18RFPWRUP9ON_OFF10GND 20RFIN 19GND 18VOUT 17NC 16GND 22GPIO13 15GPIO15 14GPIO1413VCC 12VBACKU

Page 12 - $PLSC,211

MODULE DESCRIPTIONBy default, the SG Series will operate in full power mode. However, it also has abuilt-in power control mode called Adaptive Trickle

Page 13 - $PLSC,212

Page 9TYPICAL APPLICATIONSFigure 4 shows a circuit using the GPS module with a passive antenna. Figure 5 shows a circuit using the GPS module with an

Page 14 - MASTER DEVELOPMENT SYSTEM

NMEA OUTPUT MESSAGESThe following sections outline the data structures of the various NMEA protocolsthat are supported by the module. By default, the

Page 15 - BOARD LAYOUT GUIDELINES

GSV – GNSS Satellites in ViewThe table below contains the values for the following example:$GPGSV,3,1,12,28,81,285,42,24,67,302,46,31,54,354,,20,51,07

Page 16 - Absolute Maximum Solder Times

NMEA INPUT MESSAGESThe following outlines the serial commands input into the module forconfiguration. By default, the commands are input at 9,600bps,

Page 17 - LINX TECHNOLOGIES, INC

101 – NavigationInitializationThis command was used to initialize the receiver with the current position (in X,Y, Z coordinates), clock offset, and ti

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