STMicroelectronics VL53L7CX Time-of-Flight Multizone Ranging Sensor

STMicroelectronics VL53L7CX Time-of-Flight Multizone Ranging Sensor is designed for applications requiring an ultrawide FoV. The STMicroelectronics VL53L7CX Time-of-Flight sensor offers a 90° diagonal FoV. The device is based on ST's FlightSense technology. The VL53L7CX incorporates an efficient metasurface lens (DOE) placed on the laser emitter, enabling a 60° x 60° square FoV onto the scene. It has a multizone capability that provides a matrix of 8x8 zones (64 zones) and works fast at speeds up to (60Hz) and 350cm.

Features

Fast and accurate multizone distance ranging sensor with 90° wide FoV
- 60° x 60° square field of view (FoV) (90° diagonal)
- Multizone ranging output with either 4x4 or 8x8 separate zones
- Autonomous Low-power mode with interrupt programmable threshold to wake up the host
- Up to 350cm ranging
- Multitarget detection and distance measurement in each zone
- 60Hz frame rate capability
- Histogram processing and algorithmic compensation minimize or remove the impact of cover glass crosstalk
- Motion indicator for each zone to show if targets have moved and how
Fully integrated miniature module
- Emitter, 940nm invisible light vertical cavity surface emitting laser (VCSEL) and integrated analog driver
- Diffractive optical elements (DOE) on both transmitter and receiver enabling square FoV
- Receiving array of single photon avalanche diodes (SPADs)
- Low-power microcontroller running firmware
- 6.4mm x 3.0mm x 1.6mm size

Easy integration
- Single reflowable component
- Flexible power supply options, single 3.3V or 2.8V operation or combination of either 3.3V or 2.8V AVDD with 1.8V IOVDD
- Compatible with a wide range of cover glass materials

Applications

Ultra-wide FoV and multizone scanning allow content management (load in trucks, tanks, and waste bins)
Applications requiring ultrawide FoV, like smart speakers, and vacuum cleaners (three sensors can cover 180° x 60° FoV)
Gesture recognition with a wide field of detection
Devices requiring ultrawide FoV for user detection to wake up devices (smart buildings, smart lighting)
Keystone correction for video projectors

Robotics applications (SLAM, wall track, small object detection, cliff prediction, floor type recognition)
Augmented reality/virtual reality (AR/VR) enhancement. Dual camera stereoscopy and 3D depth assistance thanks to multizone distance measurement
IoT (user and object detection)
Video focus tracking, 60Hz ranging allows optimization of continuous focus algorithm