ILX146K ETC1 | Alldatasheet

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The ILX146K adopts a CCD trans- fer structure that differs from conventional sensors. We came up with a lot of new ideas, for example, in the drive timing, and as a result were able to create a CCD linear sensor that features the 3 RGB lines being adjacent, which was previously unknown. This device is optimal for copiers and other scanner-based end products that need to operate at high speed. I strongly recommend that you consider this device. The Industry’s First Digital Copier CCD Linear Sensor with RGB Adjacent 3-Line Plus Monochrome 1-Line 7600-Pixel Sensors ILX146K At the same time as demand for digitizing documents is increasing, there is also rapid progress being made in switching from analog to digital in copiers. The increasing performance in this area is remarkable. Due to this background, there is now strong demand for CCDs that can provide the performance to scan documents with high quality at even faster speeds. To respond to these needs, Sony has now developed the ILX146K CCD linear sensor in which the RGB sensor lines are directly adjacent to each other. I Color RGB adjacent 3-line CCD + monochrome (green) CCD I High-speed transfer Maximum data rates:

100 MHz (monochrome)

150 MHz (color)

Figure 1 shows the ILX146K block dia- gram and figure 2 shows the structure of the vertical transfer block of the color RGB adjacent 3-line CCD. The color RGB adjacent 3-line sensor pro- vides a vertical transfer gate adjacent to the blue sensor and reads out the charge collected at the green sensor. By carefully controlling the drive timing of the read gate and the vertical transfer gate, the read- out charge is transferred to individual hori- zontal registers without any mixing of the blue and green charge. This allowed Sony to create an adjacent RGB sensor and made the following two features possible. Since the ILX146K also provides a mono- chrome (green) CCD, the ILX146K can support high-speed black-and-white scanning of documents and wide range of signal processing. Suppression of Incorrect Color Registration During Scanning Mechanical motion is required for docu- ment scanning using a CCD linear sen- sor. When spatial read errors (variations in the read position) in the scan direction occur during this mechanical motion, color registration errors occur. Since con- ventional CCD linear sensors have a wide spacing between the RGB sensors, the possibility for read errors to occur is high, especially during high-speed scanning. Since the ILX146K, in which the RGB sensors are adjacent, is resistant to the in- fluence of spatial errors during scanning, color displacement is suppressed and it can support high-quality high-speed scan- ning. High-Speed Transfer Maximum Data Rates:

100 MHz (Monochrome),

Figure 3 shows the structure of the mono- chrome CCD vertical transfer block. While the color RGB adjacent 3-line CCD has a 2-stage horizontal register structure for each color, the monochrome CCD adopts a 4-stage structure in the horizon- tal registers for even faster processing. Sony applied further refinements to the color CCD vertical transfer structure, to allow the signal charge to be divided among 4 horizontal registers. The signal charge transferred by the horizontal reg- isters is transferred a maximum distance of 7 cm (9.325 µm × 7,500 pixels) to the charge to voltage conversion block. Each of these horizontal registers has a maxi- mum transfer rate of 25 MHz. This allows the ILX146K to achieve a maximum data rate of 100 MHz.

I Figure 2Vertical Transfer Block Structure (Color RGB adjacent 3-line CCD) Output circuit Output circuit Output circuit Output circuit Output circuit Output circuit Output circuit Output circuit Output circuit

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φRS-M φLH-M φH2-M φH1-M φH2-M VDD GND VL GND φH1-M φH2φH1φLH φRS φH2 VDD GND VL GND φH1 Sensor (G-M ) CCD register (G-3) CCD register (G-1) CCD register (G-4) ROG/CHG/CHG2 45φHDG- M Driver Driver Driver Driver Driver Driver 46φHH3-M 54φHH2-M 53φHH1-M 24 φROGDriver Driver Driver Driver Driver Driver Driver Driver 33 φV1 32 φV2 31 φCHG 17 φHDG 18 φHH3 26 φHH2 25 φHH1 4φCHG2 3φCHG- M 52φROG- M 28φH2 27φH1 56 φH2 55 φH1 CCD register (G-2) CCD register (R-EVEN ) CCD register (R-ODD ) CCD register (G-ODD ) CCD register (G-EVEN ) CCD register (B-ODD ) CCD register (B-EVEN )

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Sensor (R) Sensor (G) Sensor (B) ROG/CHG ROG/CHG 131412 Driver Monochrome green sensor Color RGB adjacent 3-line linear sensor Sensor (Red) Sensor (Green) Sensor (Blue) Sensor (Red) Sensor (Green) Sensor (Red) Sensor (Green) Sensor (Red) Sensor (Green) Sensor (Red) Sensor (Green) Sensor (Blue) Sensor (Blue) Sensor (Blue) Sensor (Blue) Read gate Horizontal register Horizontal register Horizontal register Horizontal register Horizontal register Read gate Horizontal register Vertical transfer gate Vertical register Number of effective pixels Pixel size Item 30,400 pixels (7,600 pixels × 4) (9.325 µm pitch) ILX146K Supply voltage Dual power supply: 10 V and -3 V Resolution 600 DPI (A3) Package 56-pin DIP (Cer-DIP) Sensor structure 3 adjacent RGB lines + 1 G line Number of outputs 10 outputs (2 outputs each for the color RGB lines) (4 green outputs for the monochrome line) Sensitivity R 10 Item G 15 B 7.5 Monochrome 14.5 Sensitivity nonuniformity 10 Adjacent pixel difference 10 Saturated output voltage 1.2 (Min.) Dark voltage average 0.4 Dark signal nonuniformity 1.0 Image lag 0.1 Current consumption 125 Maximum operating frequency 50R, G, B Monochrome 100 V/(lx · s) V mV mV mA MHz/color Typ. Unit Ta = 25°C, VDD = 10 V, VL = –3 V, fφRS = 25 MHz, input clock = 5 Vp-p, light source = 3200K, using a CM-500S (t = 1.0 mm) IR cut filter. I Figure 3 Vertical Transfer Block Structure (Monochrome CCD) I Table 1 Device Structure I Table 2 Electrooptical Characteristics Horizontal register Horizontal register Horizontal register Horizontal register Read gate Green sensor (monochrome) Vertical register