Timax Ti125 User Manual

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TiMax Ti125

Receiver

User Manual

Issue: R02

Bulletin

SG171

Revision

Date

13 April 2010

Table of Contents

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Summary of Contents for Timax Ti125

Page 1 TiMax Ti125 Receiver User Manual Issue: R02 Bulletin SG171 Revision Date 13 April 2010...
Page 2: Table Of Contents
4.3 Emulation/Test Signals ..........................12 4.4 Control Signals ............................13 4.5 I/O Signals ..............................13-14 5. FEATURES ..................................15 5.1 Power on Reset ............................15 5.2 Time Transfer ............................... 15 5.3 Ti125 Embedded Identification ........................15 5.4 Build Options ............................... 15 6.OPERATING MODES ...............................16 6.1 Stand Alone Operation ..........................16 6.2 Net Assisted Operation ..........................16 7. POWER MANAGEMENT ..............................16 7.1 Coma Mode .
Page 3 Contact Details ............................47 APPENDIX 3 ..................................47 World Wide Web Information ........................47 APPENDIX 4 ..................................48 Tape & Reel Specifications .......................... 48 Solder Profile ............................... 48 SG171 Ti125 User Manual Page 3 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 4: Description
• Application Information The Ti125 is available in a number of standard software builds, depending on the application for which it is to be used. In special cases, the Ti125 may be supplied with a slightly different hardware build. The specifications in this manual refer to the standard builds.
Page 5: Global Positioning System
1.3 GPS Positioning and Navigation The Ti125 Receiver needs to be able to see at least 4 satellite vehicles (SV’s) to obtain an accurate 3-D position fix. When trav- elling in a valley or built-up area, or under heavy tree cover, you will experience difficulty acquiring and maintaining a coherent satellite lock.
Page 6: Standard Positioning Service (Sps)
CEP and SEP are not affected by large errors, which could make the values an overly optimistic measurement. These prob- ability statistics are not suitable for use in a high accuracy positioning system. The Ti125 reports all accuracies in the form of a standard deviation (RMS) value.
Page 7: Specification
2. SPECIFICATION 2.1 Performance Ti125 GPS RECEIVER SPECIFICATIONS Physical Module dimensions 25mm (D) x 27mm (W) x 4.2mm (H) Supply voltages 3V3 (Digital I/O), 3V3 (RF), 1V8 (Core option), 3V (Standby Battery) Operating Temp -30°C to +80°C Storage Temp -40°C to +85°C Humidity 5% to 95% non-condensing Max Velocity / Altitude 515ms / 18,000m (increased rating version available subject to export license) Max Acceleration / Jerk 4g / 1gs (sustained for less than 5 seconds) Sensitivity Acquisition with network assist -155dBm Tracking -156dBm Acquisition Stand Alone -143dBm Acquisition Hot Start with network assist Outdoor: <2s Time Indoor (-148dBm): <5s Stand Alone (Outdoor) Cold: <45s Warm: <38s...
Page 8: Absolute Maximum Ratings
BB25IC TRIM/EXT_CLK Clock RTC & Filter EEPROM NPOR VBATT Figure 1 Block Diagram SG171 Ti125 User Manual Page 8 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 9: Physical Characteristics
3.1 Physical Interface Details The interface to the Ti125 is via 1mm castellation on a 2mm pitch. There are 42 connections in all. There is also an RF connec- tor for connecting to the GPS antenna. The details of the interface connections are given below.
Page 10: Mcm Dimensions
RF_IN castellation. If the RF_IN castellation is to be used, the pad should be shortened by 0.5mm underneath the Ti125 and standard RF design practices must be observed. The diagram below shows the placement of the pads under the castellations.
Page 11: Signal Description
4. SIGNAL DESCRIPTION The signals on the Ti125 are described in the table below. All Test, Control and I/O ports are CMOS 3.3V compatible unless specified otherwise. 4.1 Power Signals RF_3V3 Type: Power Direction: Input Pin: 19 The RF supply input. This 3.3V ± 10% input supplies the 3.0V LDO regulator in the RF section of the Ti125. It is important that this supply is well filtered with no more that 50mV peak to peak noise with respect to RF_GND.
Page 12: Rf Signals
Multi-ICE uses the RTCK output signal to indicate when the TDO signal is valid. The signal return path is DIG_GND. Pull it to VCC (DIG_3V3) through a 1K resistor for normal operation. NTRST Type: Test Direction: Input Pin: 15 The Test Reset signal. This is the active low JTAG test reset signal. The signal return path is DIG_GND. Pull it to ground through a 1K resistor for normal operation. SG171 Ti125 User Manual Page 12 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 13: Control Signals
I/O signal. The signal return path is DIG_GND. 1PPS Type: I/O Direction: Input/Output Pin: 38 The 1 pulse per second signal is normally a 1 pulse aligned with GPS time, but can under software control also provide general purpose I/O or an additional even input. The pulse width of the 1PPS is software selectable with a default of 100µs. The signal return path is DIG_GND. SG171 Ti125 User Manual Page 13 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 14 GPIO[3]/FREQ_IN Type: I/O Direction: Input/Output Pin: 42 The GPIO[3]/FREQ_IN output provides an active high status 3D fix indicator. This indicator can also be used to determine the validity of the pin 38 (1PPS) output. The signal return path is DIG_GND. Notes 4. Accessible with custom software only. 5. USB is not supported in the current software build. Leave these two pins unconnected. SG171 Ti125 User Manual Page 14 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 15: Features
The power on reset for the Ti125 is generated on-board by the regulator in the RF section from the RF_3V3 signal. The RF_3V3 signal must be applied to the Ti125 at the same time as the DIG_3V3, if the on-board power on reset is to be used. If an external source of reset is to be applied to the NPOR signal after both the RF_3V3 and the DIG_3V3 signals are valid, this restriction does not apply.
Page 16: Operating Modes
15 minutes to ensure all almanac information has been received. The GPS data is stored in the EEPROM memory fitted to the Ti125. Once the receiver has been initialised and has current almanac and ephemeris data it may then be taken indoors for test with low level signals.
Page 17: Communications Protocols
All ports are configured as 8 bits, no parity, with no handshaking. 8.2 Output Format There are two types of messages that can be output from the Ti125 receiver, these are split into NMEA sentences and Debug messages. Both types of outputs are ASCII strings.
Page 18: Gpgga - Gps Fix Data
1 No fix 2 2D GPS Fix 3 3D GPS Fix sv Satellites in use, null for unused fields (12 available fields) PDOP 3-D Position Dilution of Precision (0.00 to 99.99) HDOP 2-D Horizontal Dilution of Precision (0.00 to 99.99) VDOP Vertical Dilution of Precision (0.00 to 99.99) cs Message checksum in hexadecimal SG171 Ti125 User Manual Page 18 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 19: Gpgsv - Gps Satellites In View
Course made good ddmmyy Date in Day, Month Year format mv Magnetic variation mvd Magnetic variation direction Mode Mode Indicator: D = Valid, Differential, A = Valid, Autonomous, E = Invalid, Estimated, N = Invalid, Not Valid cs Message checksum in hexadecimal SG171 Ti125 User Manual Page 19 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 20: Pvtg - Course Over Ground And Ground Speed
Receiver clock Bias (nanoseconds) Clk_D Receiver clock Drift (nanoseconds/second) PG 1PPS Granularity (nanoseconds) LocalTTag Local receiver time-tag since start-up [msec] BAcc Bias Accuracy TAcc Time Accuracy cs Message checksum in hexadecimal SG171 Ti125 User Manual Page 20 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 21: Polyp- Position Data
(GPS-GLONASS) time difference aiding applied bit 3 External Distance travelled input used bit 4 External Speed input used bit 5 External Track input used bit 6 External Delta -Track input used bit 7,8 Reserved for future use cs Message checksum in hexadecimal SG171 Ti125 User Manual Page 21 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 22: Polys - Satellite Status
CLKB = Clock Bias FREQ = Frequency (of reference oscillator) HPOS = Horizontal position VPOS = Vertical Position (altitude) VVEL = Vertical Velocity DIST = Distance Moved SPEED = Current Speed TRACK = Current track DTRACK = Delta track (change in direction) BLANK Reserved for future use cs Message checksum in hexadecimal SG171 Ti125 User Manual Page 22 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 23: Debug Messages
8.2.3.1 Navigation and Timing Summary ($11) Navigation Summary Page 12x32x32x16 Ti125 1.741 May 10 2004 15:03:41 Time 140533.70 3840 1270 137133.708 1 15 0 -569556.04 -675.87 Geod 52 14 58.28304 N 1 9 21.20855 E 209.19 161.75 s--------------- Local 921.146 -15325.118 83.187 0.009 0.007 193.89 0.015...
Page 24: Rf & Agc Data ($52)
DC Offset: Shows the amount of imbalance in the measured signal. Ideally the DC offset should be zero, but will show a slight DC offset of up to a few percent due to the adjustment resolution in the RF front end. SG171 Ti125 User Manual Page 24 of 50...
Page 25: Command Format
Q: Command, a query command to the Ti125 receiver. S: Command, requires the Ti125 receiver to set system settings. R: Response to a Ti125 receiver, response to a $PRTH Query or an acknowledgement of a $PRTH Set. <id> is a 4 character command identifier.
Page 26: Prth, Dyna: Receiver Dynamics
= Drone, Missile dynamics (<16g) = Pure least squares mode (ie semi-infinite dynamics assumed) Default for Ti125-NAV is 3, maximum is 5. Default for Ti125-TIM is 1 and changes to 0 after 10 minute location survey completed, maximum is 5.
Page 27: Prth, Rset: Re-Set The Receiver
The data areas that can be cleared include satellite almanacs, ephemerides, network assist and receiver configuration parameters. Note that “sleep” mode is not currently supported in the Ti125 technology. This command invokes a 2 second time-out prior to the reset being called.
Page 28: Prth, Illh: Initialized Lat, Long, Height Position
Explanation of Parameters Frequency The frequency in Megahertz that the receiver will output. Ti125-TIM defaults to 10 MHz, 30 MHz maximum. Ti125-NAV defaults to 0 MHz (disabled), 20 MHz maximum. e.g. for 10kHz = 0.010 = switch digital frequency off.
Page 29: Prth, Mmsv: Min & Max Satellites For A Position Solution
(epochs). The dead reckoning will progress at constant velocity for the first half of this period and then reduce to a standstill during the second half. Note that since this value has units of epochs, it will have a different effect on a 1Hz Ti125 receiver to that on a 2Hz, 5Hz or 10Hz Ti125 receivers.
Page 30: Network Assistance Input
8.4 Network Assistance Input The Ti125 uses network assistance data to allow acquisition and tracking of GPS satellites in low signal levels. The network assistance data is base on the TIA/EIA/IS-801 specification as using the CDMA network. The format used is an ASCII version of the data to allow the contents of the messages to be displayed on a terminal.
Page 31: Nmea And Uart Configuration Details
$PRTHS, U3CM 9.1 NMEA Configuration Query ($PRTHQ, UxOP): The command takes the form “$PRTHQ,UxOP” where x is a port number. On the Ti125 platform, the port number is always be- tween 1 and 3 inclusive. The remainder of the strings is of the form “$PRTHR,UxOP,GLL=1,GSV=4,PLT=1” where x is the port number for which the information was requested.
Page 32: Uart Configuration Query ($Prthq, Uxcm)
Although the format of the command supports the use of different Rx and Tx baud rates, this is not currently supported by the Ti125 platform. Consequently, the Rx and Tx baud rates must always be specified to be the same value. In addition, the Ti125 platform does not currently support the use of parity, or of stop bit settings other than 1 stop bit.
Page 33: Ild Network Assist Message Format
Navsync Base Station. These messages are suitable for use as a Network Assistance input to the Ti125 receiver module. They are a series of ASCII comma separated messages which are output from UART3 of the Ti125 based ILD Base Station Receiver at 38400,8,N, 1.
Page 34: Message Definitions
Each of the raw 30 bit data words have been logically shifted 6 bits to the right to remove the 6 parity bits leaving the 24 data bits seen in the above example. cs 8-bit accumulative checksum of all bytes in-between the # and & characters in hexadecimal. SG171 Ti125 User Manual Page 34 of 50 Rev: 02 Date: 04/13/10 ©...
Page 35: Klb, Klobuchar Ionospheric Parameters Message
(x 1 seconds) WNLSF (x 1 weeks) DN (x 1 days) DtLSF (x 1 seconds) cs 8-bit accumulative checksum of all bytes in-between the # and & characters in hexadecimal. SG171 Ti125 User Manual Page 35 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 36: Tim, Time Input Message
(Longitude_degrees * 100000 + Longitude_minutes * 1000) +ive East. Alt WGS84 ellipsoidal altitude (metres)+ive Up. Unc_SMaj Horizontal RMS uncertainty semi-major axis (metres) Unc_SMin Horizontal RMS uncertainty semi-minor axis (metres) Unc_Brg Horizontal RMS uncertainty bearing of semi-major axis (degrees) Unc_Vert Vertical RMS uncertainty bearing of semi-major axis (metres) cs 8-bit accumulative checksum of all bytes in-between the # and & characters in hexadecimal. SG171 Ti125 User Manual Page 36 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 37: Example Sequence Of Messages
#KLB, 5,2, -1, -2,38,3, -1, -4&BA #UCP, -20, -8,15,3,13,222,5,13&68 #ALM, 16,1283,5014B5, 0F0C4C,FD5500, A10C39, 97277F,C8792E, FAD2CF, 010002&6E #ALM, 17,1282,518D10, 90108E,FD4900, A10CD1, F63811, 8FCC07, 7F941E,F0FFB0&8A SG171 Ti125 User Manual Page 37 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp.
Page 38 13B4A1,0DCF97,70807C,FFDC99,1E10E7,000626,261485,16E322,EB337C,FFA480,38F9C1&93 #ALM,15,1283,4F4826,0F0F3F,FD4C00,A10CDC,EF95B3,5D7FC0,24AD4C,27003F&C1 #ALM,16,1283,5014B5,0F0C4C,FD5500,A10C39,97277F,C8792E,FAD2CF,010002&6E #WTP,1282,467152.579,3912418,-78914,5020031,&DD #KLB,5,2,-1,-2,38,3,-1,-4&BA #UCP,-20,-8,15,3,13,222,5,13&68 #ALM,17,1282,518D10,90108E,FD4900,A10CD1,F63811,8FCC07,7F941E,F0FFB0&8A #ALM,18,1282,522AA4,900DCE,FD4700,A10D0E,1DF18C,88F19F,28FEAD,F7FFF8&FA #WTP,1282,467153.603,3912419,-78914,5020031,&D3 #EPH,06,409001,191EA0,D180AF,B1A11B,D70FF5,4B7242,000145,2C7A40,4B084E,38258E,0A93F7,068403,6813BB, 1294A1,0E1379,72427F,0059C5,DCF2CA,FFE026,199E24,1831AF,1F3454,FFA567,4B0CA5&41 #ALM,19,1283,531D34,0F0B61,FD5700,A10C3B,C40980,B01E11,C94607,FE0028&41 #ALM,20,1283,54133D,0F0DC9,FD4100,A10C6F,16E0FE,41DD95,D2B291,EE002D&92 SG171 Ti125 User Manual Page 38 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 39 #EPH, 24,409000,191EA0,D180AF, B1A11B, D70FFD, 797241,00001A, 0639AF, 7900CE, 33F689,E735BA, 010304,D62923, 092DA1, 0D77A1, 724120,0041F3, 849D01, 005127,7C25BE, 2539C7, 26812C,FFA692, 79FC34&E6 #ALM, 30,1283,5E3DD5, 0F006D,FD4300, A10C7A, 95D8A6, 3389C4,D0357A, 480018&63 #ALM, 31,1283,5F6302, 0FFBE7,FD4500, A10D3C, BFB770, 283629,171561,25006B&4D SG171 Ti125 User Manual Page 39 of 50 Rev: 02 Date: 04/13/10 ©...
Page 40: Time Pulse Interface
< 0.33 v at 6mA sink) The Ti125 is capable of producing a user select frequency. The frequency is output on GPIO [0] port (pin 39). The frequency is configured using the FRQD command as detailed in section 8.3.10.
Page 41: Application Hints
If the source impedance of the power supply to the Ti125 is high due to long tracks, filtering or other causes, local decoupling of the supply signals may be necessary. Care should be taken to ensure that the maximum supply ripple at the pins of the Ti125 is 50mV peak to peak.
Page 42: Grounding
DIG_GND signals. While there is not a specific need to put a ground plane under the Ti125, high energy signals should not be tracked under the Ti125. It is recommended that a ground plane be used under the Ti125. In this case, the following would be an example of the pattern that may be used.
Page 43: Over Voltage & Reverse Polarity Protection
14.6 Reset Generation The power on reset for the Ti125 is generated on-board. It is generated by the regulator for the RF section. This signal is an ac- tive low, open collector signal and is presented on the NPOR castellation. If it is desired to extend the power on reset signal or provide a manual reset for the Ti125, this signal can be driven from an open collector source at any time.
Page 44: Glossary
Ellipsoidal Height as defined from the Earth’s centre by a reference Height ellipsoid model (see Datum) EMI/EMS/EMC Electromagnetic Interference (emitted from equipment), Susceptibility (to interference from other equipment), and Compatibility (EMI + EMS) EPS Emergency Power Supply, only for maintaining the RTC data in the RAM when the equipment is powered down ENU East North Up (the order of listing co-ordinates) Ephemeris Similar to Almanac, but providing very accurate orbital data of each individual satellite and transmitted by the satellite concerned SG171 Ti125 User Manual Page 44 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 45 International Nautical Mile (1852 metres; 6076.1 feet, 1.15 statute miles). ns, nSec Nanosecond, one thousandth of a microsecond (i.e. 10 second) Personal Computer (IBM compatible) PCB Printed circuit Board P-code The Precise (or Protected) GPS code - not available to civil users. PDOP Position Dilution of Precision, including horizontal and vertical components. pps, PPS Pulse per Second, and Precise Positioning Service SG171 Ti125 User Manual Page 45 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 46 Transmit Data (serial communication from Data Terminal or ‘DTE’ to Data Communication Equipment or ‘DCE’) us, uSec Microsecond (u is frequently used for the Greek µ symbol denoting ‘micro’, one millionth part, 10 UTC Coordinated Universal Time UTM Universal Transverse Mercator UART Universal Asynchronous Receiver-transmitter (used in serial communications) VDOP Vertical Dilution of Precision WGS World Geodetic System (a world-wide Datum, GPS works in WGS84 which has superseded WGS72) SG171 Ti125 User Manual Page 46 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 47: Contact Details
National Marine Electronics Association (NMEA) For information on the NMEA protocol specification: www.nmea.org General GPS Information Glossary of GPS terms: www.gpsworld.com/resources/glossary.htm SG171 Ti125 User Manual Page 47 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved...
Page 48: Tape & Reel Specifications
(2 min Max) Ramp Slope not to exceed ±3°C/sec Time (sec) Figure 11 Solder Profile SG171 Ti125 User Manual Page 48 of 50 Rev: 02 Date: 04/13/10 © Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice...
Page 50: Sg171 Ti125 User Manual
TiMax Ti125 Receiver User Manual Revision Revision Date Notes P 0.1 01/24/07 Preliminary User Manual P 0.2 05/03/07 Updated to new Format V1.0 08/26/07 Updated to Released Version V1.03 11/07/07 Revisions and Edits Update R00 04/21/08 Data Updates & Update to new Revision System R01 06/16/08 Data Revisions to Section 8 & dBW to dBm R02 04/13/10 Update to 1 PPS (timing) Accuracy Specification...