Tyco Electronics A1080-A User Manual Download Page 3

Page: 3 / 31

Revision History

Rev. Date

Description

1.0 10-18-06 Initial

Draft.

1.1 12-04-06

First released revision

1.2 12-08-06 Application

note: Antenna current limiter

1.4 03-13-07

Some minor changes and updates

2.0 03-23-07 New

design, adjustments

2.1 06-01-07

Correction solder pads size

2.2 07-03-07

Minor updates serial port configuration

2.3 06-07-07

Application note: reset pin

mm-dd-yy

V2.3 - 07/07

User’s Manual

Page 3 of 31

Summary of Contents for A1080-A

Page 1: ...GPS Receivers A1080 A A description of Tyco Electronics GPS module A1080 A User s Manual Version 2 3 Hardware Revision 01...

Page 2: ...This page was intentionally left blank...

Page 3: ...n 1 2 12 08 06 Application note Antenna current limiter 1 4 03 13 07 Some minor changes and updates 2 0 03 23 07 New design adjustments 2 1 06 01 07 Correction solder pads size 2 2 07 03 07 Minor upda...

Page 4: ...STEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF TYCO ELEC TRONICS THIS DOCUMENT MAY PROVIDE LINKS TO OTHER WORLD WIDE WEB SITES OR RESOURCES BECAUSE TYCO ELECTRONICS HAS NO CONTROL OVER SUCH SITES AND R...

Page 5: ...A1080 A 13 4 2 Details Solder Side A1080 A 14 5 Pin out Information 15 5 1 Layout A1080 A 15 5 2 Description A1080 A Signals 15 5 3 General Comments 16 6 Electrical Characteristics 17 6 1 Operating C...

Page 6: ...w incl Current Limiter 23 10 3 VANT Pin antenna voltage input pin 24 10 4 1PPS pin 1 pulse per second pin 25 10 5 Reset Signal 25 10 5 1 Reset Sources 25 10 6 Battery Back up 27 11 Demonstration Kits...

Page 7: ...tion of GPS module combines small size and high end GPS functionality at low power consumption Operable at 3 3V 36mA typ 1fix per second Small form factor of 19 x 16 2 mm 0 75 x 0 64 Cost effective an...

Page 8: ...aracteristics 1 The calibrated clock of the receiver has not stopped thus it knows precise time to the s level 2 The receiver has estimates of time date position and valid almanac and ephemeris data 3...

Page 9: ...0A V23993 stands for Tyco Electronics wireless and communication products A1080A for the A1080 A module 2 2 Packing 2 2 1 Packaging of the A1080 A The A1080 A GPS module comes in a tape and reel packa...

Page 10: ...cations 2 2 3 Additional Equipment V23993EVA1080A Evaluation Kit including one module V23993A1080A Table 3 Additional equipment A detailed description of the additional kit can be found in the accordi...

Page 11: ...received via an RS232 interface based on the GPS module A1080 A Figure 4 Recommended minimum configuration A1080 A Remarks Place C1 to C5 here 0 1 F close to MAX3232 For capacity values see datasheet...

Page 12: ...plies to more than 95 of the active antennas available in the market 3 3 Serial Port Settings The default configuration within the standard GPS firmware is Serial 0 NMEA 4800 baud 8 data bits no parit...

Page 13: ...GPS receiver A1080 A 4 Mechanical Outline 4 1 Details Component Side A1080 A All dimensions in mm inch Figure 5 Mechanical outline component side A1080 A V2 3 07 07 User s Manual Page 13 of 31...

Page 14: ...GPS receiver A1080 A 4 2 Details Solder Side A1080 A Solder pad size 1 0 x 0 8 All dimensions in mm Figure 6 Mechanical outline solder side A1080 A Page 14 of 31 User s Manual V2 3 07 07...

Page 15: ...Serial output 0 NMEA out 8 RX0 Serial input 0 NMEA in 9 nRST Reset input 10 Res Reserved leave open 11 BOOTSEL Special boot mode leave open for normal operation 12 Res Reserved leave open 13 Res Reser...

Page 16: ...nd use of the module Standard configuration of serial port standard GPS software Serial 0 NMEA 4800 baud 8 data bits no parity 1 stop bit no flow control Antenna Antenna connected to Antenna Pin Use g...

Page 17: ...and clock off 6 2 Absolute maximum ratings Symbol Parameter Min Max Unit Vcc power supply 0 3 3 6 V Vin voltage to any pin 0 3 3 6 V Iov input current on any pin 10 10 mA Itdv absolute sum of all inp...

Page 18: ...w soldering of the module in convection or IR convection ov ens are as follows Peak temperature RoHS compliant process 245 C Average ramp up rate to Peak 183 C to Peak 3 C second max Preheat temperatu...

Page 19: ...ground plane of the PCB the ground plane is on a lower PCB layer by via as demonstrated in the drawing Figure 9 Antenna connector strip line A1080 A In order to gain the impedance of 50 the width of t...

Page 20: ...ly to the majority of active antennas that can be found in the market Anyhow the quality of the GPS antenna chosen is of paramount impor tance for the overall sensitivity of the GPS system The system...

Page 21: ...rd JESD22 A113 B Level 3 Basic qualification tests MSL Classification according to J STD 020C MSL3 245 C MSL Rework Compatibility according to J STD 020C Temperature Cycling 30 C 85 C Temperature Humi...

Page 22: ...e following ANTSTAT output Logic low when Iant 9mA Logic high when 9mA Iant 16mA Logic low when Iant 16mA 10 2 1 Antennas with Different Current Draw The following circuit is a proposal on how you can...

Page 23: ...to the first one but includes a current limiter Comments and notes as above apply We strongly recommend simulating and testing your realized version before use In any case it is the responsibility of...

Page 24: ...A1080 A GPS receiver module This should be avoided by using an antenna current limiter Please find proposal for simple current limiter below If other transistors are used other resistor values may be...

Page 25: ...input pin The nRST pin can be used to generate a reset on the A1080 A module Resetting the module will result in a restart of the complete firmware All information stored in SRAM will still be valid...

Page 26: ...ze to the nRESET pin 2 Never ever pull the nRESET pin actively high 3 Only use an open drain collector device e g a bipolar NPN transistor to ground see Fig 1 to pull the nRESET pin low in order to is...

Page 27: ...battery or a supercap While the supercap is charged thru the module during normal operation the bat tery primary cell is decoupled thru a diode Figure 15 Application note Module back up An alternative...

Page 28: ...ect easily to a PC The USB interface is an ex tension of the serial port 0 therefore sending NMEA sentences and accepting commands At the same time it provides power to the module Accompanied by an an...

Page 29: ...are highly appreciated Hans Wiedemann Product Marketing Manager Positioning Products Tel 49 89 6089 838 Fax 49 89 6089 835 Tyco Electronics Corporation Power Systems Finsinger Feld 1 85521 Ottobrunn...

Page 30: ...GPS receiver A1080 A Page 30 of 31 User s Manual V2 3 07 07 This page was intentionally left blank...

Page 31: ...10 Figure 4 Recommended minimum configuration A1080 A 11 Figure 5 Mechanical outline component side A1080 A 13 Figure 6 Mechanical outline solder side A1080 A 14 Figure 7 Pin out information A1080 A 1...

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