MLX75031 Datasheet, PDF (3/67 Pages) Melexis Microelectronic Systems – Optical Gesture & Proximity Sensing IC

MLX75031
Optical Gesture & Proximity Sensing IC
with Integrated LED Drivers
Datasheet
8.11.1 General Description of the SPI Interface ............................................................................ 26
8.11.2 Operation Modes................................................................................................................. 29
8.11.3 Detailed Explanation of SPI Instruction Words .................................................................. 30
8.11.3.1 NOP – Idle Command ....................................................................................................... 30
8.11.3.2 CR – Chip Reset Command .............................................................................................. 30
8.11.3.3 RSLP/CSLP – Request Sleep/Confirm Sleep..................................................................... 30
8.11.3.4 RSTBY/CSTBY - Request Standby/Confirm Standby ........................................................ 31
8.11.3.5 NRM – Normal Running Mode......................................................................................... 31
8.11.4 SM – Start Measurement .................................................................................................... 32
8.11.5 RO – Start Read-Out ............................................................................................................ 34
8.11.6 DM+RO - Start Measurement combined with Read-Out .................................................. 36
8.11.7 WR/RR - Write/Read Register ............................................................................................. 37
8.11.8 SD – Start Diagnostics.......................................................................................................... 38
8.12 Internal Status Flags ................................................................................................................... 40
8.13 User Registers Overview ............................................................................................................ 42
8.13.0 SetAna register .................................................................................................................... 43
8.13.1 SetAH register ...................................................................................................................... 44
8.13.2 SetAL register ....................................................................................................................... 44
8.13.3 SetBH register ...................................................................................................................... 45
8.13.4 SetBL register ....................................................................................................................... 45
8.13.5 SetTP register....................................................................................................................... 46
8.13.6 Err register ........................................................................................................................... 47
8.13.7 Rst register ........................................................................................................................... 48
8.13.8 Version register.................................................................................................................... 48
8.10.9 Reserved register................................................................................................................. 49
8.10.10 GainBuf register................................................................................................................. 49
8.13.11/12 Calib1/Calib2 register .................................................................................................. 50
8.13.13 EnChan register ................................................................................................................. 54
8.13.14 Tamb register..................................................................................................................... 55
8.13.15 SetPLS register ................................................................................................................... 55
8.14 Window Watchdog Timer .......................................................................................................... 56
8.15 Reset Behaviour ......................................................................................................................... 58
8.16 Supply Voltage Behaviour .......................................................................................................... 59
8.17 Wake-up from Sleep or Standby ............................................................................................... 60
8.18 CRC Calculation .......................................................................................................................... 61
8.19 Global Timing Diagrams ............................................................................................................. 62
9. Application Information .......................................................................................................................63
9.1 Application circuit......................................................................................................................... 63
10. Standard information regarding manufacturability of Melexis products with different
soldering processes.............................................................................................................................64
11. General Recommendations - ESD/EMC Precautions .......................................................................... 65
12. Package Information ..........................................................................................................................66
12.1 QFN 4x4 (24 pins): Quad Flat No-lead with exposed pad ........................................................ 66
13. Disclaimer .......................................................................................................................................... 67
REVISION 001 – JANUARY, 2013
39010xxxxx
Page 3 of 3