AR0833 Datasheet, PDF (6/64 Pages) ON Semiconductor – 8 Mp CMOS Digital Image Sensor

AR0833: 1/3.2-Inch 8 Mp CMOS Digital Image Sensor
General Description
General Description
The ON Semiconductor AR0833 is a 1/3.2-inch BSI (back side illuminated) CMOS active-
pixel digital image sensor with a pixel array of 3264H x 2448V (3280H x 2464V including
border pixels). It incorporates sophisticated on-chip camera functions such as
mirroring, column and row skip modes, and context switching for zero shutter lag snap-
shot mode. It is programmable through a simple two-wire serial interface and has very
low power consumption.
The AR0833 digital image sensor features ON Semiconductor's breakthrough low-noise
1.4m pixel CMOS imaging technology that achieves near-CCD image quality (based on
signal-to-noise ratio and low-light sensitivity) while maintaining the inherent size, cost,
and integration advantages of CMOS.
The AR0833 sensor can generate full resolution image at up to 30 frames per second
(fps). An on-chip analog-to-digital converter (ADC) generates a 10-bit value for each
pixel.
Functional Overview
In order to meet higher frame rates in AR0833 sensor, the architecture has been re-
designed. The analog core has a column parallel architecture with 4 data paths. Digital
block has been re-architected to have 4 data paths.
The chip is targeted to meet SMIA 85 module size. As a result, the final die size is
6.86 mm x 6.44 mm (singulated) which would fit in the intended module with two-sided
pad frame.
Figure 1 shows the block diagram of the AR0833.
Figure 1: Top Level Block Diagram
V_AA, V_AA_PIX
V_DD_IO,
DV_DD_1V8, DVDD^_1V2
DV_DD_1V2_PHY
Imaging Sensor Core
Pixel
Gain
ADC
Array
10-bit
Temperature
Sensor
Gain
Control
Digital Processing Image Output
MIPI
Serial Data
Output [3:0]
AR0833
Register Control
PLL
Timing Control
VCM
Two-WWiirree
Serial Interface
External _{XSHUTDOWNGPIO[1:0]} GPI[3:2] _{VCM Control}
Clock
SCLK SDATA
The core of the sensor is an 8Mp active-pixel array. The timing and control circuitry
sequences through the rows of the array, resetting and then reading each row in turn. In
the time interval between resetting a row and reading that row, the pixels in the row inte-
AR0833_DS Rev. H Pub. 4/15 EN
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