User's Manual

Contents
1 Gas Sensor Platform Reference Design User's Guide .............................................................. 5
1.1 Introduction .................................................................................................................. 5
1.1.1 Fundamental Blocks of LMP91000: ............................................................................. 7
1.1.2 Examples of Firmware and iOS Calculation .................................................................... 8
1.1.2.1 O
2
Sensor Example ......................................................................................... 8
1.2 CO Sensor Example ........................................................................................................ 9
1.2.1 Postprocessing Steps as Implemented in the iOS ............................................................ 9
1.3 Supported Sensor Types .................................................................................................. 9
1.3.1 WEBENCH
®
Support ............................................................................................. 11
2 Features ........................................................................................................................... 12
2.1 Gas Sensor Platform With BLE Design Features ..................................................................... 12
2.2 Featured Applications ..................................................................................................... 14
2.3 Highlighted Products ...................................................................................................... 14
2.4 Block Diagram ............................................................................................................. 15
3 Hardware Description ........................................................................................................ 16
3.1 Getting Started ............................................................................................................. 16
3.2 Battery Life Calculation ................................................................................................... 18
4 Antenna Simulations .......................................................................................................... 19
4.1 Simulations With the Battery Board (SAT0009) ....................................................................... 19
4.2 Summary of Findings ..................................................................................................... 24
4.3 Conclusion .................................................................................................................. 24
4.4 FCC Reports ............................................................................................................... 24
5 Schematics and Bill Of Materials ......................................................................................... 25
5.1 SAT Gas Sensor Platform With BLE .................................................................................... 25
5.1.1 Power Board Schematic and BOM ............................................................................. 25
5.2 BLE and AFE Section ..................................................................................................... 27
6 Layout .............................................................................................................................. 32
6.1 SAT Gas Sensor Platform With BLE .................................................................................... 32
6.1.1 SAT0009 (Power Board) Layer Plots .......................................................................... 32
6.1.2 SAT0010 (AFE and BLE Board) Layer Plots ................................................................. 32
7 Practical Applications ........................................................................................................ 34
7.1 iOS Application ............................................................................................................ 34
7.2 Firmware Section .......................................................................................................... 37
A SAT0009 Power Board Files ................................................................................................ 41
A.1 Gerber Files ................................................................................................................ 41
A.2 Altium Project Files ........................................................................................................ 41
2
Contents SNOA922–April 2013
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