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| High-Resolution 7.24M-Pixel Diagonal 9.107 mm (Type 1/1.8) Color CCD for Consumer Digital Still Cameras Supports VGA Moving Picture Imaging ICX489AQF The demands for higher pixel counts and further miniaturization continue to increase in the rapidly growing digital still camera market. To respond to these demands, Sony has developed the ICX489AQF diagonal 9.107 mm (Type 1/1.8) CCD image sensor that features 7.24M effective pixels. The ICX489AQF takes full advantage of the latest fine fabrication technologies to achieve a 2.35 m unit pixel size. This results in both higher resolution and further miniaturization. Sony's unique horizontal and vertical pixel addition technology allows the ICX489AQF to provide both 7M-pixel still picture and 30 frames/s VGA moving picture imaging. I I Primary color filters, 28-pin SOP Diagonal 9.107 mm (Type 1/1.8) Provides 7.24M effective pixels (3112H x 2328V) 5-field readout method High sensitivity: 168 mV (G signal) High saturation signal: 385 mV I I I The ICX489AQF is a 7.24M-effective pixel diagonal 9.107 mm (Type 1/1.8) CCD image sensor that was developed for use in high-resolution consumer digital still cameras. It provides high-resolution image capture when a mechanical shutter is used. Figure 1 presents Sony's lineup of CCD image sensors for consumer digital still cameras. Since the ICX489AQF is positioned as a higher pixel count version of the earlier Sony ICX455AQF (diagonal 9.04 mm (Type 1/1.8), 5.13M effective pixels) product, it allows a 7Mpixel digital still camera to be imple- mented based on an earlier ICX455AQF camera without changing the optical system. Table 1 lists the ICX489AQF device structure, and table 2 lists the imaging characteristics. Timing Generator IC Sony also provides the CXD3630GA timing generator IC that includes built-in horizontal and vertical drivers for the ICX489AQF. In addition to a VGA equivalent moving picture mode, this IC also supports a high frame rate readout mode and an AF mode as well. High Saturation Signal The ICX489AQF adopts a 5-field readout method to improve the dynamic range and resolution in moving picture mode. This allows the area occupied by the photodiode block in the unit pixel to be increased and allows the ICX489AQF to provide a saturation signal of 385 mV. High Sensitivity The light collecting ability of the individual pixels has been improved by optimization not only of the fine fabrication technology used for the on-chip microlenses, but also of the shape of the microlenses, and by the adoption of thinfilm primary color filters. These technologies allow the ICX489AQF to achieve a sensitivity of 168 mV despite a pixel size of 2.35 m. V O I C E We developed a new 7M-pixel Type 1/1.8 CCD image sensor to respond to new demands for high-quality moving picture in addition to the higher pixel counts and miniaturization previously demanded by the digital still camera market. This new image sensor will allow digital still cameras to provide not only still picture, but high-quality moving picture as well. I hope you will seriously consider developing new consumer digital still camera products that take advantage of the features of this device. [Pixel count] 8M IS-IT IS-IT 7M (Moving picture supported) ICX456 Type 2/3 ICX489 Type 1/1.8 6M ICX282 5M ICX406 4M ICX252 3M ICX284 1999 2000 2001 ICX434 Type 1/3.2 2002 2003 2004 [CY] ICX432 ICX451 ICX488 Type 1/2.7 ICX452 ICX455 I Figure 1 Consumer Digital Still Camera CCD Lineup VHLD VST V5B V5A V3B V3A V10 I Table 1 Device Structure V1 V9 V8 V7 V6 V4 V2 Item Image size Transfer method Readout method Total number of pixels Number of effective pixels ICX489AQF Diagonal 9.107 mm (Type 1/1.8) Frame readout interline transfer method 5-field readout Approx. 7.41M (3164H x 2342V) Approx. 7.24M (3112H x 2328V) Approx. 7.20M (3104H x 2320V) 14 13 12 11 10 9 8 7 6 5 4 3 2 1 G R G R B G B G B G B G B G B G G R G R G R G R G R G R B G B G B G B G B G B G (Note) Number of active pixels Number of recommended Approx. 7.08M (3072H x 2304V) recording pixels (Aspect ratio: 4:3) Unit cell size Horizontal drive frequency Package 2.35 m (H) x 2.35 m (V) 33.75 MHz 28-pin plastic SOP Vertical register G R G R G R G R I Table 2 Imaging Characteristics Item ICX489AQF 168 mV 385 mV 200 mV 200 mV -87.5 dB -79.5 dB -73.5 dB 3.33 frames/s 30 frames/s 60 frames/s Number of output lines: 466 Number of output lines: 232 None when a mechanical shutter is used, V/10 method Ta = 60C, per pixel Remarks 3200K, 706 cd/m2, 1/30 s accumulation, F5.6 Sensitivity (G signal) Frame readout mode Saturation signal 4/10-line readout mode 4/20-line readout mode Frame readout mode Smear (F5.6) 4/10-line readout mode 4/20-line readout mode Frame readout mode 4/10-line readout mode 4/20-line readout mode Horizontal register 15 16 17 18 19 20 21 22 23 24 25 26 27 28 H2B H1B H1A CSUB VOUT H2A VDD SUB GND GND GND RG VL Note: : Photosensors GND I Figure 2 ICX489AQF Block Diagram Frame rate : With horizontal addition Note: This device was designed for use in consumer digital still cameras and may not be appropriate for other applications. Contact your Sony representative for consultation when considering this product for use on other applications. |
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