Sony ICX452AQ, ICX452AQF User Manual
Diagonal 9.04 mm (Type 1/1.8) 5.13M-Pixel CCD Image Sensor
for High-Resolution Digital Still Cameras
ICX452AQ
ICX452AQF
The needs for higher pixel counts and further miniaturization are
increasing in the digital still camera market that has been
experiencing rapid and continuous growth for several years.
Sony has now developed the ICX452AQ/AQF diagonal 9.04 mm (Type
1/1.8) 5.13M-pixel CCD image sensor to respond to these needs.
The ICX452AQ/AQF takes full advantage of the latest semiconductor fabrication technologies and achieves not only the high resolution of 5M pixels, but also better sensitivity and saturation signal
level characteristics than the ICX406AQ, which shares the same
optical system size.
The ICX452AQ/AQF is a diagonal 9.04
mm (Type 1/1.8), 5.13M-pixel CCD image sensor that was developed for highresolution digital still cameras. In conjunction with a mechanical shutter, this sensor
can acquire high-resolution images. Since
this product has the same image diagonal
as the conventional ICX406AQ, a 5Mpixel digital still camera can be implemented without changes to the lens
optical system. Table 1 lists the device
structure of the ICX452AQ/AQF and table
2 lists its imaging characteristics.
Extensive Lineup
Figure 1 shows Sony's digital still camera
CCD lineup. Sony supports customer
needs with its extensive product line that,
starting with the ICX202 developed in
1997, covers image sizes from Type 2/3
to Type 1/3.6 with pixel counts from
1.25M to 5M pixels. The newly-developed
ICX452AQ/AQF can be seen as both a
reduced size version of the ICX282 Type
2/3 5M-pixel sensor, and as an increased
pixel count version of the ICX406 Type
1/1.8 4M-pixel sensor. As such, Sony is
confident that it will contribute to even
further growth of the consumer digital still
camera market.
High Saturation Signal Level
■ ICX452AQ: Primary color filters, DIP
ICX452AQF: Primary color filters, SOP
■ Diagonal 9.04 mm (Type 1/1.8), effective
5.13M pixels (2616H × 1960V)
■ Three-field readout method
■ High sensitivity: 235 mV (G signal)
■ High saturation signal level: 500 mV
High Sensitivity
In addition to the fabrication technology
used for the on-chip microlenses, Sony has
optimized the lens shape and adopted thinfilm primary color filters to improve the
optical condensing characteristics. This
improved technology allows the
ICX452AQ/AQF to achieve a sensitivity
of 235 mV, despite the 2.775 µm diagonal unit pixel.
Timing Generator IC
Sony provides the CXD3619R drive timing generator IC, which includes vertical
and horizontal drivers. This IC supports
both high frame rate readout mode and AF
mode.
To increase the dynamic range even
further, the ICX452AQ/AQF adopts the
same three-field readout system used in
the ICX432DQ/DQF. This allows the area
VOICE
We developed this new Type 1/1.8
5M-pixel CCD to respond to market demands for further miniaturization and higher pixel counts.
The idea behind this product is to
enable miniature digital still cameras to achieve even better picture
quality. I strongly recommend that
you consider developing a digital
still camera that can take advantage of the characteristics of this
device.
occupied by the photodiode in the unit
pixel to be increased over that of conventional Sony products, and achieves a saturation signal of 500 mV.
■ Table 1 Device Structure
ICX452AQ
Item
Image size
Transfer method
Readout method
Vertical register
transfer clock signals
Total number of pixels
Number of effective pixels
Number of active pixels
Number of
recommended recording
pixels (Aspect ratio: 4:3)
Chip size
Unit cell size
Horizontal drive frequency
Package
Diagonal 9.04 mm (Type 1/1.8)
Frame readout
interline transfer method
Three field readout method
8 signal lines
Approx. 5.25M (2668H × 1970V)
Approx. 5.13M (2616H × 1960V)
Approx. 5.09M (2608H × 1952V)
Approx. 5.04M (2592H × 1944V)
8.23 mm (H) × 6.68 mm (V)
2.775 µm (H) × 2.775 µm (V)
Square pixels
24.3 MHz
20-pin plastic DIP/SOP
Pixel count
5M
4M
3M
2M
ICX202
1M
1997 1998 1999 2000 2001 2002 Year (FY)
ICX224
ICX252
ICX232
ICX284
Type 1/3.6
■ Figure 1 Digital Still Camera CCD Lineup
Type 2/3
ICX282
ICX406
Type 1/2.7
ICX432
ICX434
ICX452
Type 1/2 or 1/1.8
Type 1/3.2
GND
GND
10
Vφ6Vφ5BVφ5AVφ4Vφ3BVφ3AVφ2Vφ
9 8 7 6 5 4 3 2 1
Vertical register
11
OUT
V
■ Figure 2 ICX452 Block Diagram
12 13 14 15 16 17 18 19 20
DD
V
φRG
Note: The small squares ( ) are photosensors.
G
R
G
R
G
R
G
B
G
B
G
B
G
B
Horizontal register
2BHφ1B
Hφ
φSUB
G
R
G
R
G
R
G
SUB
C
■ Table 2 Image Sensor Characteristics
1
B
G
B
G
B
G
B
GRGR
(Note)
L
V
2A
Hφ1AHφ
Item ICX452AQ Remarks
Sensitivity
(G sensitivity)
Saturation signal
Frame
readout
mode
High frame
SmearFrame rate
rate readout
mode
Frame
readout
235 mV
500 mV
–90 dB
–77 dB
3.75 frames/s
3200K,
706 cd/m
F5.6,
1/30 s accumulation
During frame readout
None when
a mechanical
shutter is used
mode
High frame
rate readout
mode
30 frames/s
(NTSC mode)
25 frames/s
(PAL mode)
60 frames/s
AF mode
(NTSC mode)
50 frames/s
(PAL mode)
2
,
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