A number of other features distingu

A number of other features distinguish these digital photosensor ICs and are described below.
In the operating environment, it is important for a light
sensor to generate a consistent output regardless of
the light source. As shown in Figure 7 (a), a competing
solution outputs different values depending on the light
source, which could cause the system to turn on the
backlighting when it is not needed. This reduces the
battery life and potentially interferes with the end user’s
experience