XRD98L23
19
Rev. 1.00
Area or Linear CCD Applications
Figure 13, is a block diagram for applications with Area
or Linear CCDs (The timing for Area CCDs and B/W
CCDs is the same). For Area or Linear CCD applica-
tions, a global offset is loaded into the serial port at the
beginning of a line. The gain is set to adjust for the
highest color intensity of the CCD output. Once the
pixel values have been sampled, the gain and offset are
adjusted at the beginning of the next line. For example,
if there is a line-to-line variation between the black
reference pixels, the offset is adjusted. The gain is
always adjusted for the highest color intensity.
Figure 13. CCD AC Coupled Application
RL
VRT
VRB
VDD
RED
XRD98L23
CLAMP
M
U
X
AREA
or
LINEAR
CCD
N/C
N/C
N/C
