
Table of Contents
1 Introduction ........................................................................................................ 6
1.1 Feature Overview .............................................................................................. 6
1.2 Characteristics Overview .................................................................................. 7
1.3 RoHS and Lead-Free Information ..................................................................... 7
1.4 Label ................................................................................................................. 8
1.5 Characteristics .................................................................................................. 9
1.5.1 GPS Characteristics.................................................................................................. 9
1.5.2 Mechanical Characteristics ....................................................................................... 9
1.6 Handling Precautions ........................................................................................ 9
2 Ordering Information ....................................................................................... 10
2.1 GPS Receiver A2235-H .................................................................................. 10
2.2 Packing ........................................................................................................... 10
2.3 Additional Equipment ...................................................................................... 13
3 Quick Start ........................................................................................................ 14
3.1 Minimum Configuration ................................................................................... 14
3.2 Antenna ........................................................................................................... 16
3.3 Serial Port Settings ......................................................................................... 16
3.4 Improved TTFF ............................................................................................... 16
3.5 Self-start configuration .................................................................................... 16
3.6 Configure the baud rate .................................................................................. 17
4 Mechanical Outline .......................................................................................... 18
4.1 Details Component Side A2235-H .................................................................. 18
4.2 Details Solder Side A2235-H .......................................................................... 19
5 Pin-out Information .......................................................................................... 20
5.1 Layout A2235-H .............................................................................................. 20
5.2 Description A2235-H Signals .......................................................................... 21
6 Electrical Characteristics ................................................................................ 23
6.1 Operating Conditions ...................................................................................... 23
6.2 Absolute Maximum Ratings ............................................................................ 23
6.3 DC Electrical Characteristics ........................................................................... 24
7 Mounting ........................................................................................................... 25
7.1 Proposed Footprint for Soldering .................................................................... 25
7.2 PCB Design Guide .......................................................................................... 25
7.3 Recommended Profile for Reflow Soldering ................................................... 27
8 Use of External Antenna .................................................................................. 28
8.1 Connection of RF Signal ................................................................................. 28
8.2 External Antenna............................................................................................. 29
8.2.1 Recommended Parameters .................................................................................... 29
8.2.2 Hints ....................................................................................................................... 29
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