era market is accelerating. In addition to the current
color CCDs. Since these devices adopt a progressive
wide range of market needs.
High frame rate readout modes (Approx. 30 frames/s,
approx. 60 frames/s)
diagonal 6.72 mm (Type 1/2.7), 2.04M鈥?/div>
pixel CCD image sensors that were
developed for digital still cameras. Table
1 shows the device structure of the
ICX454DQ and ICX454DQF.
High Sensitivity
Sony optimized the pixel pattern and
shapes of the on-chip microlenses to
achieve the high sensitivity of 330 mV
despite these devices having a small 3.275
碌m
square unit pixel. (See table 2.) These
devices adopt RGB mosaic filters for su-
perlative color reproduction.
Timing Generator IC
Along with these devices, Sony also pro-
vides the CXD3618R timing generator IC
that includes on-chip vertical drivers and
supports high frame rate readout. (See
figure 2.)
*
Wfine CCD and the Wfine logo are registered
trademarks of Sony Corporation.
Represents a CCD adopting progressive scan,
primary color filter and square pixel.
Progressive Scan CCD
Since these devices can output all the pixel
signals from the same exposure indepen-
dently and sequentially, only simple
signal processing is required and a simple
system structure can be used. Furthermore,
these devices provide an electronic shut-
ter that supports imaging at 1/1000s and
even shorter times, and thus are optimal
for cameras for sports photography and
similar applications.
High Frame Rate Readout
Modes
These devices can provide 30 and 60
frames/s outputs by selecting the number
of vertical pixels read out. These modes
are useful for verifying the image in an
LCD finder or recording a video signal.
(See figure 1.)
V
O
I
C
E
In developing these products we
aimed for a balanced feature set to
create a CCD that would be easy to
use in the increasingly diverse digi-
tal still camera market. I am quite
satisfied that these products meet
those goals, and feel it was worth
the effort. I strongly recommend
that you consider these CCDs for
your next camera product.
1
2
