STMicroelectronics’ color sensor with advanced light flicker extraction is fast and accurate thanks to an individual ADC
STMicroelectronics’ VD6283 (1.83 mm x 1.0 mm x 0.55 mm) is a color sensor with advanced light flicker extraction. Light measurement is fast and accurate thanks to an individual ADC and a readout for each color channel. The VD6283 uses hybrid color filters with precise responses allowing accurate computation of the correlated color temperature (CCT) and Lux information. The VD6283 can be used for display brightness management or scene light correction.
With a patented architecture and a high-performance photodiode design, the VD6283 can extract light flickering frequencies to avoid banding effects on videos or check that they are safe for the human eye. Additionally, the VD6283 is the only sensor able to extract different light flicker waveforms from 100 Hz and 2 kHz, including LED square signals, that can run flicker operations simultaneously with ALS operations.
Features
- Miniature optical module
- 1.83 mm x 1.0 mm x 0.55 mm
- Optical BGA, 6-balls, reflowable package
- Operates with cover glass on top
- ALS operation with 6 independent channels (red, green, blue, IR, clear, and visible)
- Advanced hybrid filters with high photocount response
- Operating conditions: 7 mLux to 30 kLux (green channel)
- Light flicker extraction
- Innovative readout architecture to extract AC light flicker signal
- From 100 Hz to 2 kHz frequency detection, sine or square wave
- Software driver provided by ST
- I²C interface up to 1 Mbit/s (Fast mode plus)
- 1.8 V power supply
- Operating temperature: -30°C to +85°C
Applications
- Screen brightness control for personal electronics
- Auto white balance color for displays or cameras
- Light flicker removal for cameras
- Scene light correction thanks to Lux and CCT measurement
- IoT display brightness control for power saving
- Light control for smart buildings or greenhouses
- Predictive maintenance for light aging
- Light flicker frequency extraction to check eye-safety
more information: https://www.st.com/en/imaging-and-photonics-solutions/vd6283tx.html