KAI-04022 datasheet(3/43 Pages) ONSEMI

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KAI−04022

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DEVICE DESCRIPTION

Architecture

Figure 2. Sensor Architecture

2048 (H) x 2048 (H)

Active Pixels

Pixel

1,1

Dual

Output

Video L

Video R

2048

Single

1024

8 Buffer Rows

6 Buffer Rows

10 Dark Rows

There are 10 light shielded rows followed 2,062

photoactive rows. The first 6 and the last 8 photoactive rows

are buffer rows giving a total of 2,048 lines of image data.

In the single output mode all pixels are clocked out of the

Video L output in the lower left corner of the sensor. The first

12 empty pixels of each line do not receive charge from the

vertical shift register. The next 28 pixels receive charge

from the left light-shielded edge followed by 2,056

photo-sensitive pixels and finally 28 more light shielded

pixels from the right edge of the sensor. The first and last 4

photosensitive pixels are buffer pixels giving a total of 2,048

pixels of image data.

In the dual output mode the clocking of the right half of the

horizontal CCD is reversed. The left half of the image is

clocked out Video L and the right half of the image is clocked

out Video R. Each row consists of 12 empty pixels followed

by 28 light shielded pixels followed by 1,028 photosensitive

pixels. When reconstructing the image, data from Video R

will have to be reversed in a line buffer and appended to the

Video L data.

There are no dark reference rows at the top and 10 dark

rows at the bottom of the image sensor. The 10 dark rows are

not entirely dark and so should not be used for a dark

reference level. Use the 28 dark columns on the left or right

side of the image sensor as a dark reference.

Of the 28 dark columns, the first and last dark columns

should not be used for determining the zero signal level.

Some light does leak into the first and last dark columns.

Only use the center 26 columns of the 28 column dark

reference.

KAI-04022 Datasheet(PDF) 3 Page - ON Semiconductor

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