Wi2Wi, Inc. Doc No. ALT-PDT-DOC Rev.1.14 Datasheet, GNSS Module W2SG0021i April 12, 2016 Product Datasheet ALT-PDT-DOC Revision 1.14 April 12, 2016 Copyright 2015 Wi2Wi, Inc. 1 Wi2Wi, Inc. Doc No. ALT-PDT-DOC Rev.1.14 Datasheet, GNSS Module W2SG0021i April 12, 2016 Table of Contents 1 General Description ..................................................................................................................4 1.1 Pin Definition ................................................................................................................................. 5 1.2 Pin Configuration ........................................................................................................................... 6 1.3 System Block Diagram .................................................................................................................. 7 1.4 Power Supply Considerations ....................................................................................................... 7 2 Specifications............................................................................................................................8 2.1 Clock Frequency ........................................................................................................................... 8 2.2 Interfaces ....................................................................................................................................... 8 2.2.1 Host UART Interface ............................................................................................................. 8 2 2.2.2 Host I C Interface .................................................................................................................. 9 2.2.3 Host Slave SPI ...................................................................................................................... 9 2 2 2.3 Master Mode I C Interface Dead Reckoning (DR) I C Interface ........................................... 9 3 Specific Pin Functions ..............................................................................................................9 3.1 Baud Rate Selection ..................................................................................................................... 9 3.2 ON/OFF ....................................................................................................................................... 10 3.3 WAKEUP ..................................................................................................................................... 11 3.4 EIT ............................................................................................................................................... 11 3.5 TM ............................................................................................................................................... 11 3.6 SRESET N ................................................................................................................................. 11 3.7 TCXO REQ ................................................................................................................................. 12 3.8 RTC XI ........................................................................................................................................ 12 3.9 LNA DET/EN .............................................................................................................................. 12 3.10 TSYNC and ECLK ....................................................................................................................... 12 3.11 Auto Start .................................................................................................................................... 12 4 WAAS with SBAS or Wide Area Differential GPS...............................................................13 4.1 Differential GPS........................................................................................................................... 13 4.2 Wide Area DGPS or WAAS ........................................................................................................ 13 4.3 How do we enable WAAS-SBAS on the W2SG0021i .............................................................. 14 5 Electrical/RF Characteristics: Operating ................................................................................15 6 Performance ............................................................................................................................16 6.1 Acquisition Time .......................................................................................................................... 16 6.2 Position Accuracy ........................................................................................................................ 16 6.3 Environmental Characteristics .................................................................................................... 17 6.4 Current and Power Consumption ................................................................................................ 17 6.4.1 Internal LNA Gain ................................................................................................................ 17 6.4.2 Maximum RF Gain .............................................................................................................. 18 7 Antenna ...................................................................................................................................18 8 Reference Schematic ..............................................................................................................19 9 Development Support .............................................................................................................20 10 Mechanical Information .........................................................................................................21 10.1 Mechanical Specification ............................................................................................................. 21 10.2 Storage and Baking Instructions ................................................................................................. 21 10.3 Recommended Reflow Profile ..................................................................................................... 22 11 Ordering Information ..............................................................................................................23 12 Disclaimers .............................................................................................................................24 12.1 Datasheet Status ......................................................................................................................... 24 13 Certifications ..........................................................................................................................24 14 References ..............................................................................................................................25 14.1 Specifications .............................................................................................................................. 25 14.2 Trademarks, Patents and Licenses ............................................................................................ 25 Copyright 2015 Wi2Wi, Inc. 2