KAF-8300 datasheet(4/28 Pages) ONSEMI

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KAF−8300

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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)

20 Active Buffer

5 Dark Dummy

5 Dummy

1 Active (CTE Monitor)

8 Dummy

4 Virtual Dummy Column

2 Dummy

SUB

VOUT

H1L

VDD

VSS

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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