Summary of STMICROELECTRONICS VL53L5 TIME-OF-FLIGHT MINI DEPTH CAMERA
The VL53L5 FlightSense Time-of-Flight Mini Depth Camera by STMicroelectronics is a miniature, reflowable ToF depth module integrating a VCSEL emitter with DOE, SPAD receiver array, physical IR filters, and a 32-bit MCU for on-board histogram processing. It provides absolute distance measurements up to 400 cm, 61° diagonal square FoV, multi-zone (4x4 or 8x8) depth outputs at up to 60 Hz, dynamic crosstalk and cover-glass compensation, flexible power options, and I²C/SPI interfaces for easy integration.
Parts used in the VL53L5 FlightSense Time-of-Flight Mini Depth Camera:
- VCSEL emitter (940 nm)
- Diffractive Optical Elements (DOE) on transmitter and receiver
- Physical infrared filters
- Receiver lens
- Single Photon Avalanche Diode (SPAD) array in receiver (and SPADs in transmitter aperture)
- 32-bit microcontroller unit with hardware accelerator
- On-board analog driver for VCSEL
- Cover glass (compatible materials)
- Package (miniature reflowable module, 6.4mm x 3.0mm x 1.5mm)
- Power supply pins supporting 3.3V, 2.8V AVDD, and 1.8V IOVDD
- I²C and SPI interface pins
- Low-power pin and two GPIOs for interrupt and synchronization
- Firmware and software drivers (Linux and Android compatible)
STMicroelectronics VL53L5 FlightSense™ Time-of-Flight Mini Depth Camera integrates a SPAD array, physical infrared filters, and diffractive optics (DOE) in a miniature reflowable package. These features allow the VL53L5 to achieve the best ranging performance in various ambient lighting conditions with various cover glass materials. The use of a DOE above the vertical-cavity surface-emitting laser (VCSEL) allows a square FoV to be projected onto the scene. The receiver lens focuses the reflection of this light onto a SPAD array.
The STM VL53L5 FlightSense Time-of-Flight Mini Depth Camera utilizes a direct ToF technology that allows absolute distance measurement, whatever the target color and reflectance. The ToF technology provides accurate ranging up to 400cm, and the 32bit MCU with extra HW accelerator can post-process the histogram and stream ready-to-use depth information at fast speeds (60Hz).
Features
- Fully integrated miniature module
- Emitter: 940nm invisible vertical cavity surface emitting laser (VCSEL) and integrated analog driver
- 61° diagonal square system field of view (FoV) using diffractive optical elements (DOE) on both transmitter and receiver
- Receiving array of single photon avalanche diodes (SPADs) in both transmitter and receiver apertures
- Low-power microcontroller running firmware
- 6.4mm x 3.0mm x 1.5mm Size
- Fast, accurate distance ranging
- Parallel multi zone output; either 4×4 or 8×8 separate regions of interest (ROI)
- Up to 400cm ranging
- 60Hz frame rate capability
- Histogram processing and algorithmic compensation minimizes or removes impact of cover glass crosstalk
- Fully autonomous device with on-board histogram and ranging processing running on ST in-house 32Bit MCU
- Dynamic crosstalk compensation for fingerprint smudge via latest patented ToF techniques
- Easy integration
- 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 wide range of cover glass materials
- I²C or SPI interface
- Low-power pin and two general purpose inputs (GPIOs) for interrupt and synchronization
- Full set of software drivers (Linux and Android compatible) for turnkey
Read more: STMICROELECTRONICS VL53L5 TIME-OF-FLIGHT MINI DEPTH CAMERA
- What maximum range does the VL53L5 provide?
The article states the VL53L5 provides accurate ranging up to 400cm. - What is the field of view of the VL53L5?
The VL53L5 has a 61° diagonal square system field of view using diffractive optical elements. - What emitter wavelength does the VL53L5 use?
The emitter is a 940 nm invisible VCSEL. - How many regions of interest (ROI) can the VL53L5 output?
The device supports parallel multi zone output of either 4×4 or 8×8 separate ROIs. - What interfaces are supported for communication?
The VL53L5 supports I²C or SPI interface. - What frame rate capability does the VL53L5 have?
The module has a 60 Hz frame rate capability. - Does the VL53L5 perform on-board processing?
Yes, it has a 32-bit MCU with histogram processing and on-board ranging processing. - How does the VL53L5 handle cover glass crosstalk and smudges?
Histogram processing and algorithmic compensation minimize or remove cover glass crosstalk, and dynamic crosstalk compensation addresses fingerprint smudge. - What power supply options are available?
The module supports single 3.3V or 2.8V operation or combinations of 3.3V or 2.8V AVDD with 1.8V IOVDD. - Are software drivers provided?
Yes, a full set of software drivers compatible with Linux and Android is provided for turnkey use.
