AR0134CSSM25SPD20 datasheet(4/29 Pages) ONSEMI

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AR0134CS

www.onsemi.com

PIXEL DATA FORMAT

Pixel Array Structure

The AR0134CS pixel array is configured as 1412 columns

by 1028 rows, (see Figure 2). The dark pixels are optically

black and are used internally to monitor black level. Of the

right 108 columns, 64 are dark pixels used for row noise

correction. Of the top 24 rows of pixels, 12 of the dark rows

are used for black level correction. There are 1296 columns

by 976 rows of optically active pixels. While the sensor’s

format is 1280

× 960, the additional active columns and

active rows are included for use when horizontal or vertical

mirrored readout is enabled, to allow readout to start on the

same pixel. The pixel adjustment is always performed for

monochrome or color versions. The active area is

surrounded with optically transparent dummy pixels to

improve image uniformity within the active area. Not all

dummy pixels or barrier pixels can be read out.

Figure 2. Pixel Array Description

1412

Dark Pixel

Barrier Pixel

Light Dummy

Pixel

Active Pixel

2 Light Dummy +

4 Barrier +

24 Dark +

4 Barrier +

6 Dark Dummy

1296

× 976 (1288 × 968 Active)

4.86

× 3.66 mm2 (4.83 × 3.63 mm2)

2 Light Dummy +

4 Barrier +

100 Dark +

4 Barrier

2 Light Dummy +

4 Barrier

2 Light Dummy +

4 Barrier +

6 Dark Dummy

Figure 3. Pixel Color Pattern Detail (Top Right Corner)

Column Readout Direction

Active Pixel (0, 0)

Array Pixel (110, 40)

…

Default Readout Order

By convention, the sensor core pixel array is shown with

the first addressable (logical) pixel (0,0) in the top right

corner (see Figure 3). This reflects the actual layout of the

array on the die. Also, the physical location of the first pixel

data read out of the sensor in default condition is that of pixel

(110, 40).

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