OPT8320 Datasheet, PDF (65/88 Pages) Texas Instruments – OPT8320 3D Time-of-Flight Sensor

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8 Application and Implementation
OPT8320
SBAS748 – DECEMBER 2015
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
ToF cameras provide the complete depth map of a scene. In contrast with the scanning type light detection and
ranging (LIDAR) systems, the depth map of the entire scene is captured at the same moment with an array of
time-of-flight (ToF) pixels. A broad classification of applications for a 3D camera include:
• Presence detection
• Object location
• Movement detection
• 3D scanning
The OPT8320 sensor provides a fully-integrated solution for depth sensing. Apart from being a single-chip
solution, the OPT8320 is highly configurable and thus lends itself to a wide gamut of applications. The relatively
large pixel size of 30 μm (combined with a large well capacity and shutter operation) offers excellent dynamic
range, allowing for both indoor and outdoor solutions. A small sensor format of 1/6" enables systems with very
low profile height. Fast readout speeds up to 1000 frames per second (FPS) also enable applications that are
very sensitive to motion blur. The block diagram of a complete 3D ToF camera implementation using the
OPT8320 is illustrated in Figure 71.
(1) The external illumination driver is optional. The OPT8320 can modulate up to 150 mA of peak current directly.
(2) The external temperature sensor is optional. This sensor is typically implemented when an external illumination driver
is used.
Figure 71. Application Block Diagram
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