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KAF-8300-AAB-CB-AE Datasheet(PDF) 4 Page - ON Semiconductor |
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KAF-8300-AAB-CB-AE Datasheet(HTML) 4 Page - ON Semiconductor |
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4 / 28 page  KAF−8300 www.onsemi.com 4 Figure 3. Block Diagram (Monochrome) Last Hccd Phase: H1 3326 Active Pixels (typical active line format) Last Vccd Phase: V2 20 Active Buffer 8 Dark Dummy 39 Dark 6 Dark Dummy 3 Dummy 1 Active (CTE Monitor) H1 H2 20 Active Buffer 5 Dark Dummy 5 Dummy 1 Active (CTE Monitor) 8 Dummy 4 Virtual Dummy Column 2 Dummy OG SUB VOUT RG RD H1L VDD VSS V1 V2 1 Active (CTE Monitor) 20 Active Buffer 3 Dark Dummy LODT LODB 20 Active Buffer 8 Dark Dummy 12 Dark 6 Dark Dummy Active Image Area 3326 (H) X 2504 (V) Effective Image Area 3366 (H) X 2544 (V) 5.4 microns X 5.4 microns 4:3 Aspect Ratio Dark Reference Pixels Surrounding the periphery of the device is a border of light shielded pixels creating a dark region. Within this dark region there are light shielded pixels that include 39 trailing dark pixels on every line. There are also 12 full dark lines at the start of every frame. Under normal circumstances, these pixels do not respond to light and may be used as a dark reference. Dark Dummy Pixels Within the dark region some pixels are in close proximity to an active pixel, or the light sensitive regions that have been added for manufacturing test purposes, (CTE Monitor). In both cases, these pixels can scavenge signal depending on light intensity and wavelength. These pixels should not be used as a dark reference. These pixels are called dark dummy pixels. Within the dark region, dark dummy pixels have been identified. There are 5 leading and 14 (6 + 8) trailing dark pixels on every line. There are also 14 (6 + 8) dark dummy lines at the start of every frame along with 3 dark dummy lines at the end of each frame. Dummy Pixels Within the horizontal shift register there are 13, (8 + 5), leading and 5, (2 + 3), trailing additional shift phases that are not electrically associated with any columns of pixels within the vertical register. These pixels contain only horizontal shift register dark current signal and do not respond to light and therefore, have been designated as dummy pixels. For this reason, they should not be used to determine a dark reference level. Virtual Dummy Columns Within the horizontal shift register there is 4 leading shift phases that are not physically associated with a column of pixels within the vertical register. These pixels contain only horizontal shift register dark current signal and do not respond to light and therefore, have been designated as virtual dummy columns. For this reason, they also should not be used to determine a dark reference level. Active Buffer Pixels For color devices, sixteen buffer pixels adjacent to the blue pixel buffer region contain a RGB mosaic color pattern. This region is classified as active buffer pixels. These pixels are light sensitive but they are not tested for defects and |
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