XESS XStend XS40, Manual

Page: 25 / 63

24
intensities of these three primary colors to combine to make the color of a dot (or pixel ) on
the monitor’s screen.
Each analog color input can be set to one of four levels by two digital outputs using a
simple two-bit digital-to-analog converter (see
Figure 7 ). The four possible levels on each
analog input are combined by the monitor to create a pixel with one of 4
×
4
×
4 = 64
different colors. So the six digital control lines let us select from a palette of 64 colors.