FLIR Lepton 3.5 - Page 3

FLIR LEPTON® Engineering Datasheet
The information contained herein does not contain technology as defined by the EAR, 15 CFR 772, is publicly available,
and therefore, not subject to EAR. NSR (6/14/2018).
Information on this page is subject to change without notice.
Lepton Engineering Datasheet, Document Number: 500-0659-00-09 Rev: 203
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3.5.1 Radiometry Enabled - TLinear ................................................................................................................................ 30
3.5.2 Radiometry Enabled – Flux linear ........................................................................................................................... 30
3.5.3 Radiometry Disabled .............................................................................................................................................. 31
3.5.4 Radiometric Accuracy – Module ............................................................................................................................. 32
3.5.5 Radiometric Accuracy – System Considerations ..................................................................................................... 32
3.6 AGC MODES .................................................................................................................................................................. 34
3.7 VIDEO OUTPUT FORMAT MODES ....................................................................................................................................... 36
3.8 GPIO MODES ................................................................................................................................................................. 39
4 INTERFACE DESCRIPTIONS ........................................................................................................................................... 40
4.1 COMMAND AND CONTROL INTERFACE ................................................................................................................................. 40
4.1.1 User Defaults Feature ............................................................................................................................................. 42
4.2 VOSPI CHANNEL ............................................................................................................................................................. 44
4.2.1 VoSPI Physical Interface ......................................................................................................................................... 45
4.2.2 VoSPI Protocol – Lepton 1.5, 1.6, 2.0 and 2.5 ......................................................................................................... 46
4.2.3 VoSPI Protocol – Lepton 3.0 and 3.5 ...................................................................................................................... 54
4.2.4 VoSPI Protocol – Lepton 2 vs. Lepton 3 .................................................................................................................. 62
5 THERMAL CAMERA BASICS .......................................................................................................................................... 63
6 MOUNTING SPECIFICATIONS ....................................................................................................................................... 65
6.1 SOCKET INFORMATION ..................................................................................................................................................... 66
6.2 MECHANICAL CONSIDERATIONS ......................................................................................................................................... 68
6.3 THERMAL CONSIDERATIONS ............................................................................................................................................... 69
6.4 OPTICAL CONSIDERATIONS ................................................................................................................................................ 69
7 IMAGE CHARACTERISTICS ............................................................................................................................................ 69
8 SPECTRAL RESPONSE ................................................................................................................................................... 71
9 ELECTRICAL SPECIFICATIONS ....................................................................................................................................... 73
9.1 LEPTON PIN-OUT ............................................................................................................................................................. 73
9.2 DC AND LOGIC LEVEL SPECIFICATIONS ................................................................................................................................. 76
9.3 AC ELECTRICAL CHARACTERISTICS ....................................................................................................................................... 77
9.4 ABSOLUTE MAXIMUM RATINGS ......................................................................................................................................... 78
9.5 ELECTRONIC INTEGRATION CONSIDERATIONS ......................................................................................................................... 78
10 ENVIRONMENTAL SPECIFICATIONS ............................................................................................................................. 79
10.1 COMPLIANCE WITH ENVIRONMENTAL DIRECTIVES .................................................................................................................. 80
11 ABBREVIATIONS AND ACRONYMS ............................................................................................................................... 82