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High-Resolution 4.11M-Pixel Diagonal 6.75 mm (Type 1/2.7) Color CCD for Consumer Digital Still Cameras Supports 30 frames/s VGA Moving Picture Imaging
ICX488DQ/DQF
The desires for higher resolution and further miniaturization are growing along with the increasingly widespread use of consumer digital still cameras. To respond to these desires, Sony has now developed a new 4.11Mpixel diagonal 6.75 mm (Type 1/2.7) interlaced CCD, the ICX488DQ/ DQF. The ICX488DQ/DQF achieves both higher resolution and miniaturization by achieving the industry's smallest pixel size of 2.35 m. Sony's unique horizontal and vertical pixel addition technology allows the ICX488DQ/DQF to provide both 4M-pixel class still picture and VGA moving picture imaging at 30 frames/s.
I ICX488DQ: Primary color filters, 24-pin DIP ICX488DQF: Primary color filters, 24pin SOP Diagonal 6.75 mm (Type 1/2.7) optical size and 4.11M effective pixels (2344H x 1752V) The industry's smallest pixel size (2.35 m unit pixel) 3-field readout method Supports 30 frames/s VGA moving picture imaging
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The ICX488DQ/DQF is a diagonal 6.75 mm (Type 1/2.7) 4.11M-effective pixel CCD image sensor developed for use in high-resolution consumer digital still cameras. Used with a mechanical shutter, the ICX488DQ/DQF provides high-resolution image capture. Table 1 presents the pixel structure used in the ICX488DQ/DQF, and table 2 presents its imaging characteristics.
The Industry's Smallest Pixel Size
Figure 1 presents Sony's consumer digital still camera CCD lineup. Although the ICX488DQ/DQF corresponds to an increased pixel count version of Sony's earlier Type 1/2.7 3.24M-pixel ICX432DQ/DQF, Sony has developed the industry's smallest pixel (with a unit pixel size of 2.35 m) by adopting the latest fine fabrication technologies, and thus succeeds in achieving both higher resolution and miniaturization at the same time. This allows the implementation of a 4M-pixel digital still camera from a design using the ICX432DQ/DQF without changing the optical system.
VGA Moving Picture Imaging at 30 frames/s
Since the ICX488DQ/DQF adopts Sony's unique horizontal and vertical pixel addition technology, it can add together 4 pixels internally to the CCD itself and thus achieve a four times higher imaging sensitivity. In the 4/6-line readout mode (with horizontal addition), the ICX488DQ/DQF achieves both 30 frames/s high-speed imaging at high resolution (VGA: 640 x 480 pixels). Thus the ICX488DQ/DQF achieves both high pixel count still picture and high-quality moving picture. It also features an extensive set of readout modes, including 2/6-line readout mode that allows high-speed shutter operation, and partial scan modes designed for even higher speed AF control.
High Saturation Signal
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We developed this 4M-pixel Type 1/2.7 CCD that achieves both a high pixel count still picture and high-quality moving picture at the same time, and also achieves further miniaturization. To respond to market needs for miniaturization and higher pixel counts, we took maximum advantage of Sony's fine fabrication technologies and achieved the industry's smallest pixel size. I strongly recommend that you consider developing new products based on this device, which combines both the latest technologies and functions.
To increase the dynamic range, the ICX488DQ/DQF adopts the same 3-field readout system used in the ICX432DQ/ DQF. This readout mode allows finer design rules to be used in the vertical transfer block, which in turn allows the photodiode block to be made larger. The ICX488DQ/DQF achieves a saturation signal of 385 mV despite miniaturization to a 2.35 m unit pixel size. (See table 2.)
System IC
Sony also provides the CXD3629GA driver timing generator IC that includes built-in horizontal and vertical drivers. In addition to a VGA equivalent moving picture mode, this IC also supports high frame rate readout mode and AF mode as well.

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