RGPSD212 Semtech, RGPSD212 Datasheet

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RGPSD212

Manufacturer Part Number
RGPSD212
Description
KIT EVAL FOR RGPSM202
Manufacturer
Semtech
Type
GPSr
Datasheet

Specifications of RGPSD212

Contents
Interface Board, Module, Antenna, USB Cable, Software and Documentation CD
For Use With/related Products
RGPSM202
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
RGPSM202
SlimGPS™ - GPS Receiver
OEM Module
GENERAL DESCRIPTION
The
established FirstGPS
GPS receiver solution provides high performances in
terms of position and speed accuracy as well as
sensitivity and tracking capabilities in urban conditions.
The solution enables small form factor package. It is
designed to simplify the embedded system integration
process.
These modules are based on the Semtech XE1610
Ultra Low Power GPS chipset.
APPLICATIONS
Rev 1 August 2005
In-vehicle navigation systems
Car accessories
Asset management/tracking
Fleet management
Palmtop, Laptop, PDA
Location Based Services enabled devices
Handheld receivers
RGPSM202
®
SlimGPS
architecture. This autonomous
features
the
well
1
KEY FEATURES
REFERENCE
RGPSM202 – 16M Flash version
solution. Easily integrated into existing systems
Flash memory back-up
Small low profile form factor and low cost solution.
Surface mount, ready-to-plug solution. Drop-in
direct digital interface
Sensitivity to -143 dBm tracking
Position accuracy: < 5m CEP (50%) without SA
(horizontal)
Warm Start is under 32 seconds (50%)
Hot Start is under 12 seconds (50%)
Ultra low power: 25 mA @ 3V full power, 3
additional low power modes
Embedded ARM7TDMI
Ready-to-plug solution, fully autonomous PVT
On-board RAM for GPS navigation data, on-board
PPS output
Bidirectional NMEA interface
Real Time Clock with separate back-up power
supply
SlimGPS™ Receiver
RGPSM202
www.semtech.com

Related parts for RGPSD212

RGPSD212 Summary of contents

Page 1

... The solution enables small form factor package designed to simplify the embedded system integration process. These modules are based on the Semtech XE1610 Ultra Low Power GPS chipset. APPLICATIONS • In-vehicle navigation systems • ...

Page 2

... Hardware Reset and System Watchdog .............................................................................................................22 6 DEFAULT SETTINGS.................................................................................................................................................23 6.1 GPS Engine Configuration...................................................................................................................................24 6.1.1 Receiver configuration..................................................................................................................................24 6.1.2 Filter configuration ........................................................................................................................................24 6.1.3 Offset configuration ......................................................................................................................................24 6.1.4 Application settings.......................................................................................................................................24 7 APPLICATION INFORMATION ..................................................................................................................................24 7.1 Active Antenna.....................................................................................................................................................24 8 EXHIBIT A ...................................................................................................................................................................25 © Semtech 2005 Table of Contents 2 RGPSM202 SlimGPS™ Receiver www.semtech.com ...

Page 3

... On-board RTC can be supplied by a separate back-up power supply if the main supply is turned off. - Application software can be customized for high volume applications (Flash memory) 2 FUNCTIONAL BLOCK DIAGRAM ANT ANT BP BP FILTER FILTER FILTER FILTER LNA LNA Active Antenna Active Antenna © Semtech 2005 Q LPF Q LPF I LPF I LPF I I RF+ RF DOWN- DOWN- ...

Page 4

... SPECIFICATIONS Description Receiver Correlators/Channels Update Rate Satellite Reacquisition Time HotStart Warm Start Cold Start Tracking Sensitivity © Semtech 2005 DESCRIPTION JTAG pin JTAG pin JTAG pin JTAG pin Serial Receive Data input Digital Ground Serial Transmit Data output DC Input Power Supply ...

Page 5

... This device has an operating temperature range between -40 and +85°C 4.3 MECHANICAL INTERFACE Surface mount, compatible with an SMD assembly line. The figure below shows the foot print for the module. This is a top view. The pin # top left. All dimensions in millimeters. © Semtech 2005 Min. 3V 1.0V NMEA 0183, v3.0 5 meters CEP (50%) - 100 nanosec ...

Page 6

... RFGND – These are the power and signal ground pins for the RF section VBKP – This is the back-up supply for the on-board hardware Real Time Clock RXDA – Serial Receive data. This input pin has a pull-up resistor. TXDA – Serial Transmit data © Semtech 2005 Figure 2 Pad positions and pad details 6 RGPSM202 SlimGPS™ ...

Page 7

... If the DELPOSN is set “low” for more than 3 seconds, the BBFLASH content is erased and the receiver restarts in Cold Start condition. BTM – Board Test Mode selection TDI, TDO, TMS, TCK – JTAG test interface © Semtech 2005 1 second ~ 83 ms. Figure 3 – PPS timing diagram (Delay > ...

Page 8

... Pin Name TDI, TCK TDO 3 TMS 4 RXDA 5 DGND 6, 9, 17, 20, 21 © Semtech 2005 VCC pin Powered Powered No power Table 3 – Operating Modes Active “LP” NMEA com VCC switched Off Power down Figure 5 - Switching between operating modes Connection To VCC N ...

Page 9

... Flash in the Default Parameters Table (see Section below). These parameters can then be temporarily modified by sending the appropriate proprietary NMEA commands defined in Section 5.4 below. Note these temporary settings will be lost the next time the main supply VCC is turned off. © Semtech 2005 Connection To the host interface, microcontroller, or other device that ...

Page 10

... NMEA STANDARD MESSAGE SET SPECIFICATION The RGPSM202 supports NMEA-0183 v3.0 output messages listed below. Brief descriptions of these messages are provided below. 5.3.1 NMEA Standard Sentences Semtech receivers use the standard output messages listed in Table 6: NMEA GGA GLL GSA GSV RMC ...

Page 11

... HDOP VDOP Checksum <CR><LF> 1 Satellite used in solution. Value M A © Semtech 2005 Description Fix not available or invalid GPS SPS Mode, fix valid Differential GPS, SPS Mode, fix valid GPS PPS Mode, fix valid Table 8. Position Fix Indicator Example Description $GPGLL GLL protocol header 3723 ...

Page 12

... Depending on the number of satellites tracked multiple messages of GSV data may be required. Example: The values reported in this example are interpreted as shown in Table 13. Two messages are required to complete the data transmission. $GPGSV,2,1,07,07,79,048,42,02,51,062,43,26,36,256,42,27,27,138,42*71 $GPGSV,2,2,07,09,23,313,42,04,19,159,41,15,12,041,42*41 © Semtech 2005 Description Fix not available 2D 3D Table 12. Mode 2 ...

Page 13

... Speed Units Mode Indicator Checksum <CR><LF> 1 All "course over ground" data are geodetic WGS84. Example: The values reported in this example are interpreted as shown in Table 15: $GPVTG,137.7,T,139.6,M,007.4,N,013.7,K,A*47 © Semtech 2005 Example Units Description $GPRMC RMC protocol header 161229.487 Hh mm ss.sss data valid data not valid 3723 ...

Page 14

... The requested sentence will be sent only once. The GPQ message is defined in Table 17. Name Message ID NMEA id <CR><LF> Example: $GPGPQ,RMC*21 $GPRMC,161229.487,A,3723.2475,N,12158.3416,W,0.13,309.62,120598, 02.6,W,A*10 © Semtech 2005 Example Units Description $GPZDA ZDA protocol header 114523.62 hhmmss.ss ...

Page 15

... Description: This sentence contains information which helps a monitoring station figure out the status of the receiver. This sentence can be automatically output at a given rate by setting Bit #9 of the NMEA sentence mask (see NM- Sentence Mask and Automatic Output Rate section below). This is a query-only sentence. $PXEMaTF,a,a,xxxxxx,xx,x,llll.lllll,a,yyyyy.yyyyy,a,xxxxx*hh © Semtech 2005 where ccccccc is a diagnostic string characters 15 RGPSM202 SlimGPS™ ...

Page 16

... ASCII string ‘0131’ in the xxxx field of the NM sentence. Table 20 Possible MASK field values for the NM command Example: $PXEMSNM,0008,01*6E $PXEMRNM,a*6E (response to set: a – action status success failure) Example: $PXEMQNM*6E (query) $PXEMRNM,0119,01*6E (response to query) © Semtech 2005 Example Units Description $PXEMaTF TF protocol header, ( query response BBFlash status on startup (A = valid invalid Almanac completion status (A = complete ...

Page 17

... Name Message ID Command <CR><LF> Example: $PXEMSRT,W*6E (set) $PXEMRRT,a*6E (response to set: a – action status success failure) © Semtech 2005 Example Units Description $PXEMaPS Proprietary PS protocol header, a-mode (S = set response0 1 PPS output switch ( OFF) End of message termination Table 21 PS Data Format ...

Page 18

... Airy 1830 01 Australian National & South American 1969 02 Bessel 1841 Ethiopia 03 Bessel 1841 Namibia 04 Clarke 1866 05 Clarke 1880 © Semtech 2005 Example Units Description $PXEMaVR Proprietary RT protocol header, a-mode (Q = query response measurement platform (MPM) firmware A = FirstGPS API N = FirstGPS Library R = native RTOS ...

Page 19

... Time of Week,Channel status for satellite 1, … Channel status for satellite n*4F The most useful TR types of proprietary NMEA sentences are listed below. See Exhibit B for detailed information on all the API function calls © Semtech 2005 6377298.556 6377276.345 6377301.243 6377309.613 6377304.063 ...

Page 20

... Beyond this, the specified performance will degrade. Initial position errors greater than 3,000 km will result in a constellation which is almost out of view. So, the recommendation is to set the initial position only if its accuracy is better than 1,200 km. © Semtech 2005 SlimGPS™ Receiver 20 RGPSM202 www ...

Page 21

... The command is: $PXEMSTR,SSDI*74 Important Note: after the PXEMSTR,SSDI command is sent, the receiver should make a position fix before it saves GPS data in its back-up Flash memory. © Semtech 2005 SlimGPS™ Receiver 21 RGPSM202 ...

Page 22

... In addition, the receiver firmware includes a system watchdog reset procedure. Should a system exception occur, the receiver will execute a software reset to restart operation in a safe mode. In this case the receiver will not have position fixes for 15 seconds on average. © Semtech 2005 SlimGPS™ Receiver 22 RGPSM202 www ...

Page 23

... Elevation Mask (radian) 30 Signal Level Mask (AMU) 31 DOP Mask 32 PDOP Switch 33 Geodetic System Ellipsoid 34 Geodetic System Delta X 35 Geodetic System Delta Y 36 Geodetic System Delta Z BBFLASH Update rate 37 (minutes) © Semtech 2005 Data Type Default value Char Y Integer 1 second Char Y Char N ...

Page 24

... For proper operation, the RGPSM202 receiver should be operated with an active GPS antenna that has the following characteristics Power supply voltage Frequency range LNA Gain LNA NF Antenna and LNA total Gain © Semtech 2005 DGPS Off 0 ppm -1 ppm 8 1024 the offset number of 1024 week periods since 6 January 1980 ...

Page 25

... Karachi Singapore Singapore Russia Moscow Egypt Cairo Marshall Island Majuro Indonesia Djakarta France Paris © Semtech 2005 NNEA Syntax $PXEMSGS,00,375,-111,431*78 $PXEMSGS,01,-134,-48,149*40 $PXEMSGS,02,-148,507,685*5C $PXEMSGS,03,616,-97,251*60 $PXEMSGS,04,-3,142,183*50 $PXEMSGS,05,-128,-18,224*44 $PXEMSGS,06,-679,669,-48*4C $PXEMSGS,07,210,814,289*7D $PXEMSGS,08,295,736,257*73 $PXEMSGS,09,283,682,231*7B $PXEMSGS,10,-11,851,5*62 $PXEMSGS,11,1 ...

Page 26

... Country City Somalia Mogadiscio Ireland Dublin Singapore Singapore Ireland Dublin Ireland Dublin © Semtech 2005 NNEA Syntax $PXEMSGS,16,-43,-163,45*72 $PXEMSGS,17,506,-122,611*58 $PXEMSGS,18,7,-10,26*51 $PXEMSGS,19,0,0,4.5*60 $PXEMSGS,20,0,0,0*75 26 RGPSM202 SlimGPS™ Receiver WGS-84 Datum Local Datum 2° 2° 1’ 58.354” N 49° 19' E 49° 19’ 2.383” E 100 ...

Page 27

... No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent or other industrial or intellectual property rights. Semtech. assumes no responsibility or liability whatsoever for any failure or unexpected operation resulting from misuse, neglect improper installation, repair or improper handling or unusual physical or electrical stress including, but not limited to, exposure to parameters beyond the specified maximum ratings or operation outside the specified range ...

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