MLX75030 Datasheet, PDF(6/72 Page) Melexis Microelectronic Systems

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MLX75030 Datasheet, PDF (6/72 Pages) Melexis Microelectronic Systems – Universal ActiveLight Sensor Interface

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MLX75030 Universal ActiveLight Sensor Interface

Datasheet

Table of Contents

Functional Block Diagram...................................................................................................................... 3

1 General Description............................................................................................................................ 4

2 Glossary of Terms............................................................................................................................... 8

3 Absolute Maximum Ratings.............................................................................................................. 10

4 Pin Definitions & Descriptions .......................................................................................................... 10

5 General Electrical Specifications....................................................................................................... 13

6 Sensor Specific Specifications........................................................................................................... 14

7 Detailed Description......................................................................................................................... 19

7.1 Analog Sensor Functions .............................................................................................................. 19

7.1.1 Active Light Sensor ................................................................................................................. 19

7.1.1.1 Active Light Channel DC Light Measurement.............................................................. 19

7.1.2 ActiveLight Channel DC Light compensation......................................................................... 20

7.1.3 Ambient Light Sensor ............................................................................................................. 22

7.1.3.1 Normal Operation......................................................................................................... 22

7.1.3.2 Calibration and temperature compensation............................................................... 22

7.1.3.3 Diagnostics Mode Operation ....................................................................................... 24

7.1.4 Temperature Sensor ............................................................................................................... 24

7.1.5 DAC .......................................................................................................................................... 25

7.1.6 LED Driver................................................................................................................................ 25

7.1.7 POR .......................................................................................................................................... 26

7.2 SPI .................................................................................................................................................. 26

7.2.1 General Description of SPI Interface...................................................................................... 26

7.2.2 Detailed Explanation of SPI Instruction Words ..................................................................... 30

7.2.2.1 NOP â Idle Command ................................................................................................... 30

7.2.2.2 CR â Chip Reset Command........................................................................................... 30

7.2.2.3 RSLP/CSLP â Request Sleep/Confirm Sleep ................................................................. 30

7.2.2.4 RSTBY/CSTBY - Request Standby/Confirm Standby .................................................... 31

REVISION 005 â DECEMBER 2013

3901075030

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