AR0835HS datasheet(7/70 Pages) ONSEMI

7 / 70 page

AR0835HS_DS Rev. D Pub. 5/15 EN

©Semiconductor Components Industries, LLC, 2015.

AR0835HS: 1/3.2-Inch 8 Mp CMOS Digital Image Sensor

Functional Overview

The pixel array contains optically active and light-shielded (“dark”) pixels. The dark

pixels are used to provide data for on-chip offset-correction algorithms (“black level”

control).

The sensor contains a set of control and status registers that can be used to control many

aspects of the sensor behavior including the frame size, exposure, and gain setting.

These registers can be accessed through a two-wire serial interface.

The output from the sensor is a Bayer pattern; alternate rows are a sequence of either

green and red pixels or blue and green pixels. The offset and gain stages of the analog

signal chain provide per-color control of the pixel data.

A flash output signal is provided to allow an external xenon or LED light source to

synchronize with the sensor exposure time. Additional I/O signals support the provision

of an external mechanical shutter.

Pixel Array

The sensor core uses a Bayer color pattern, as shown in Figure 2. The even-numbered

rows contain green and red pixels; odd-numbered rows contain blue and green pixels.

Even-numbered columns contain red and green pixels; odd-numbered columns contain

blue and green pixels.

Figure 2:

Pixel Color Pattern Detail (Top Right Corner)

Note:

By default the mirror bit is set, so the read-out direction is from right to left.

Black Pixels

Column Readout Direction

...

Row

Readout

Direction

First Pixel

(Col. 0, Row 60)

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