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PDF ICX456AQ Data sheet ( Hoja de datos )
| Número de pieza | ICX456AQ | |
| Descripción | Color CCD | |
| Fabricantes | ETC | |
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High-Resolution 8.13M-Pixel Diagonal 11.07 mm (Type 2/3) Color CCD
for Consumer Digital Still Cameras Supports 30 frames/s VGA Moving Picture Imaging
ICX456AQ/AQF
The demands for higher pixel counts and increased functionality in
CCDs show no sign of letting up in the rapidly expanding digital still
camera market.
To respond to these demands, Sony has now developed a new 8.13M-
pixel diagonal 11.07 mm (Type 2/3) interlaced CCD, the ICX456AQ/AQF.
In addition to the high resolution provided by its 8.13M effective
pixels, the ICX456AQ/AQF includes a horizontal and vertical pixel
addition function that allows it to achieve both high pixel count still
picture and high-quality moving picture. The ICX456AQ/AQF also pro-
vides an extensive set of pixel addition and decimating readout modes,
allowing it to support a wide range of imaging conditions.
I ICX456AQ: Primary color filters, 28-pin
DIP
ICX456AQF: Primary color filters, 28-pin
SOP
I High resolution: 8.13M effective pixels
(3288H × 2472V)
I High-quality moving picture: VGA
equivalent moving picture and a wide
range of other readout modes as well.
I Excellent basic characteristics: 3-field
readout method
The ICX456AQ/AQF is a diagonal 11.07
mm (Type 2/3) 8.13M-effective pixel
CCD image sensor for use in high-reso-
lution consumer digital still cameras. It
boasts the industry’s highest pixel count
in Type 2/3 and smaller image size. Since
it has the same sensor size as Sony’s
earlier ICX282AQ/AQF, it allows an 8M-
pixel digital still camera to be imple-
mented without changing the optical sys-
tem.
High Resolution
CCD development passed through the
1.3M-pixel, 2.0M-pixel, 3.0M-pixel, and
5.0M-pixel stages, with the pixel count
increasing by a factor of about 1.6× at each
stage. This increase in the pixel count cor-
responds to a difference in resolution that
VOICE
We developed this new 8M-pixel
CCD that achieves both high pixel
count still picture and high-quality
moving picture to respond to mar-
ket desires for both higher pixel
counts and increased functionality.
I’m confident that this new device
will provide users with high-qual-
ity pictures, both still and moving
pictures. I strongly recommend that
you consider developing digital still
camera products that take advan-
tage of the features provided by
this device.
can be clearly recognized by the human
eye. Sony therefore selected 8.0M pixels
as the next step in increased pixel counts
since it represents a 1.6× increase over
5.0M pixels. This new resolution class
achieves resolutions in both the horizon-
tal and vertical directions of about 1900
TV lines (see photograph 1) and can cre-
ate high-quality prints with about 200 dpi
at the A3 size and about 300 dpi at the A4
size. This pixel count also allows either
the print size to be multiplied by a factor
of two in both the horizontal and vertical
directions, the image to be cropped by 1/2
both horizontally and vertically, or a fac-
tor of 2× digital zoom to be used, and still
achieve a resolution equivalent to that of a
2M-pixel camera (see photograph 2).
High-Quality Moving Picture
Achieved
The ICX456AQ/AQF includes a horizon-
tal and vertical pixel addition function and
implements an extensive set of readout
modes based on a variety of pixel addition
and decimation functions. In the 4/12-line
readout mode (with horizontal addition),
the sensor can achieve high-speed imag-
ing and high-quality moving picture
equivalent to VGA resolution at 30 frames/s.
In addition, by adding together the signals
from 4 pixels, it can achieve four times the
sensitivity. Other functions include
2/6-line readout mode, which can acquire
images at three times the frame rate, 4/24-
line readout mode (with horizontal addi-
tion) that can output images for AF/AE
control and LCD finder verification at 60
frames/s, higher speed AF control mode
and an expanded display mode for image
verification in the LCD finder. Thus the
ICX456AQ/AQF provides an extensive
set of readout modes and can support a
wide range of imaging conditions.
Excellent Basic Characteristics
To increase the dynamic range, the
ICX456AQ/AQF adopts the same 3-field
readout mode used in Sony’s earlier
ICX432DQ/DQF and ICX452AQ/AQF
image sensors. This readout mode allows
finer design rules to be used in the verti-
cal transfer block, which in turn allows
the photodiode block to be made larger.
Other additional improvements made it
possible for the ICX456AQ/AQF to
achieve a saturation signal level of 420
mV, a sensitivity of 200 mV, and a smear
value of -90 dB despite the increased pixel
count and image size. (See table 2.)
Timing Generator IC
Sony also provides the CXD3622GA
driver timing generator IC that includes
built-in horizontal and vertical drivers. In
addition to the 4/12-line readout mode that
makes VGA equivalent high-quality mov-
ing picture possible, this IC also supports
other readout modes as well.
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