General Description
The AS7261is a chromatic white color sensor providing direct
XYZ color coordinates consistent with the CIE 1931 2° Standard
Observer color coordinates. It also maps the XYZ coordinates
to the x, y (Y) of the 2-dimensional color gamut and scales the
coordinates to the CIE 1976 u’v’ coordinate system.
The device provides accurate Correlated Color Temperature
(CCT) measurements and provides color point deviation from
the black body curve for white light color in the delta u’ v’
coordinate system. It also integrates a Near-IR channel for other
applications. LED drivers with programmable currents are
provided for electronic shutter applications.
The AS7261 integrates Gaussian filters into standard CMOS
silicon via Nano-optic deposited interference filter technology
and is packaged in an LGA package that provides a built in
aperture to control the light entering the sensor array.
Control and spectral data access is implemented through either
the I²C register set, or with a high level AT Spectral Command
set via a serial UART.