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TMF8805 Dataheets PDF



Part Number TMF8805
Manufacturers ams
Logo ams
Description Time-of-Flight Sensor
Datasheet TMF8805 DatasheetTMF8805 Datasheet (PDF)

Datasheet DS000692 TMF8805 Time-of-Flight Sensor v4-00 • 2021-Jul-08 Abstract The TMF8805 is a dToF (direct time of flight) optical distance sensor module achieving up to 2500mm target detection distance. Document Feedback TMF8805 Content Guide Content Guide 1 General Description .. 3 8.5 INT_STATUS Register (Address 0xE1) 22 8.6 INT_ENAB Register (Address 0xE2)23 1.1 Key Benefits & Features. 3 8.7 ID Register (Address .

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Datasheet DS000692 TMF8805 Time-of-Flight Sensor v4-00 • 2021-Jul-08 Abstract The TMF8805 is a dToF (direct time of flight) optical distance sensor module achieving up to 2500mm target detection distance. Document Feedback TMF8805 Content Guide Content Guide 1 General Description ...................... 3 8.5 INT_STATUS Register (Address 0xE1) .....22 8.6 INT_ENAB Register (Address 0xE2)..........23 1.1 Key Benefits & Features............................... 3 8.7 ID Register (Address 0xE3)........................23 1.2 Applications .................................................. 4 8.8 REVID Register (Address 0xE4) ................24 1.3 Block Diagram .............................................. 4 8.9 App0 Registers – appid=0xC0....................24 2 Ordering Information .................... 5 8.10 Bootloader Registers – appid=0x80 ...........52 3 Pin Assignment ............................. 6 9 Application Information............... 56 3.1 3.2 Pin Diagram.................................................. 6 Pin Description ............................................. 6 9.1 9.2 9.3 SPAD Options ............................................56 Reference SPAD, TDC and Histogram ......57 Schematic ...................................................58 4 Absolute Maximum Ratings ......... 8 9.4 PCB Layout ................................................60 9.5 PCB Pad Layout .........................................61 5 Electrical Characteristics ............. 9 10 Package Drawings & Markings... 62 5.1 Recommended Operating Conditions .......... 9 6 Typical Operating 11 Tape & Reel Information.............. 63 Characteristics .............................10 12 Soldering & Storage Information 64 7 Functional Description ................13 12.1 Soldering Information .................................64 12.2 Storage Information ....................................65 7.1 I²C Protocol................................................. 13 7.2 System Parameters .................................... 13 13 Laser Eye Safety .......................... 67 7.3 7.4 I/O ............................................................... 14 Power Consumption ................................... 15 14 Revision Information ................... 68 7.5 Timing......................................................... 16 15 Legal Information......................... 69 7.6 Algorithm Performance............................... 17 7.7 VCSEL ........................................................ 19 7.8 Typical Optical Characteristics ................... 19 8 Register Description ....................21 8.1 APPID Register (Address 0x00)................. 21 8.2 APPREV_MAJOR Register (Address 0x01)........................................................... 21 8.3 APPREQID Register (Address 0x02) ......... 21 8.4 ENABLE Register (Address 0xE0) ............. 22 Datasheet • PUBLIC DS000692 • v4-00 • 2021-Jul-08 69 │ 2 Document Feedback TMF8805 General Description 1 General Description The TMF8805 is a time-of-flight (TOF) sensor in a single modular package with associated VCSEL. The TOF device is based on SPAD, TDC and histogram technology. The device achieves 2500 mm detection range. 1.1 Key Benefits & Features The benefits and features of TMF8805, Time-of-Flight Sensor, are listed below: Figure 1: Added Value of Using TMF8805 Benefits Features Small footprint fits in the mobile phone bezel Detecting central closest objects Within 5 % of measurement (accuracy); no multipath and no multiple object problems as for iToF Better accuracy detects reliably closest object Minimum distance 20 mm Maximum distance 2500 mm No complex calibration Compensates for dirt on glass Improved accuracy over temperature and life Make better decisions Class 1 Eye Safe Longer battery life Modular package - 2.2 mm x 3.6 mm x 1.0 mm No influence on multi object reflections Time-to-Digital Converter (TDC) Direct Time-of-Flight Measurement Single Photon Avalanche Photodiode (SPAD) Histogram based architecture Dynamic cover glass calibration Reliable Operation under demanding use cases Reference SPAD Distance and signal quality reported Fast VCSEL driver with protection 27 mA power consumption at 30 Hz operation 0.26 µA power-down current consumption (EN=0) Datasheet • PUBLIC DS000692 • v4-00 • 2021-Jul-08 69 │ 3 Document Feedback TMF8805 General Description 1.2 Applications The device is ideal for use in the mobile phone market with applications including: ● Distance measurement for camera autofocus (Laser Detect Autofocus - LDAF) ● Supporting low-power system operation by enabling high-power components (i.e. 3D camera) only when an object is in the detection range ● Presence detection - Object detection ● Collision avoidance 1.3 Block Diagram The functional blocks of this device are shown below: Figure 2: Functional Blocks of TMF8805 Host EN GPIO1 IN.


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