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VL53L1X简介(Vl53l1x0318).pdf

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VL53L1X Long-distance ranging time-of-flight (ToF) sensor The VL53L1X is the third-generation laser-ranging sensor based on ST’s patented FlightSense™ technology This new generation VL53L1X module includes a lens and a low-power microcontroller running advanced digital firmware which ensures an unprecedented absolute distance measurement up to 4 meters. It is also possible to program the size and the position of the Region of Interest (ROI) on the receiving array to reduce the sensor field-of-view (FoV). KEY BENEFITS • Long range: up to 400 cm absolute dis- tance measurement • Fast: Up to 50 Hz ranging frequency • High-accuracy ranging • Low-power presence detection: <1.5mW • Fully integrated miniature module: 4.9 x 2.5 x 1.56 mm • Can be hidden behind cover glass • Programmable sensor field-of-view (FoV) TARGETED APPLICATIONS • Advanced user detection for power- saving and improved security in personal computers and IoT devices • Long distance and rapid obstacle detection for robotics and smart buildings • Hovering and landing assistance for drones • Gesture recognition • Camera and video assist (ultra-fast autofocus) www.st.com/VL53L1X
TECHNOLOGY The VL53L1X is a state-of-the-art long-distance ranging ToF sensor. It contains a sensing array of SPADs (single photon avalanche diode), an integrated 940 nm invisible light source based on an eye-safe Class 1 VCSEL (vertical cavity surface-emitting laser) and a low-power embedded microcontroller. This new generation sensor integrates a lens above the SPAD array, which enables measuring distances up to 4 meters, and offers excellent ranging performance under challenging operating conditions, even when the sensor is hidden behind a colored cover window. Unlike conventional IR sensors, the VL53L1X uses ST’s patented FlightSense™ technology which ensures absolute distance measurements whatever the target color and reflectance. Thanks to advanced on-board algorithms, it is also possible to reduce the sensor FoV by programming the size and the position of the region-of- interest (ROI) on the receiving array. An “Autonomous Low Power” mode is available, based on thresholding and interrupts, specially tuned for advanced Presence detection. It allows significant system power-saving, switching-off or waking-up the host automatically when a human or an object is detected. The VL53L1X is supplied with a complete documentation package, example source code and a software API (application programming interface) which is compatible with a range of microcontrollers and processors. The application software development and the physical integration into customers’ devices is easy thanks to the X-NUCLEO expansion board, breakout boards and associated development ecosystem. MODULE DESIGN The VL53L1X is “industrial design friendly”! It is a stand-alone, all-in-one ultra-small form factor module of 4.9 x 2.5 x 1.56 mm, which can be hidden behind a wide variety of cover windows and reflowed on a motherboard or a flex PCB. The VL53L1X is pin-to-pin compatible with the previous generation VL53L0X, which enables a natural evolution to this new generation. SYSTEM BLOCK DIAGRAM VL53L1X MODULE VL53L1X module VL53L1X silicon GND SDA SCL AVSSVCSEL Single Photon Avalanche Diode (SPAD) Detection Array Non Volatile Memory ROM RAM Microcontroller Advanced Ranging Core VCSEL Driver IR+ IR- 940 nm AVDD XSHUT GPIO1 AVDDVCSEL VL53L1X EVALUATION KIT X-NUCLEO-53L1A1 PRODUCT DETAILS Part number Package size Operating range Power consumption Supply voltage Optimum operating temperature VL53L1CXV0FY/1 4.9 x 2.5 x 1.56mm up to 4 meters Hardware standby (typ.): 5 µA Ranging: <1 mW (*) 2.6 to 3.5 V -20 to +85 °C * Power consumption for Presence detection, no target, 1Hz, 20 ms ranging operation © STMicroelectronics - April 2018 - Printed in United Kingdom - All rights reserved The STMicroelectronics corporate logo is a registered trademark of the STMicroelectronics group of companies All other names are the property of their respective owners For more information on ST products and solutions, visit www.st.com/VL53L1XOrder code: FLVL53L1X0318
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