AR0130 Datasheet, PDF (26/53 Pages) ON Semiconductor – CMOS Digital Image Sensor

AR0130: 1/3-Inch CMOS Digital Image Sensor
Features
With continuous trigger mode, the application can now make use of the video streaming
mode while guaranteeing that all sensor outputs are synchronized. As long as the initial
trigger for the sensors takes place at the same time, all subsequent video streams will be
synchronous.
Automatic Exposure Control
The integrated automatic exposure control (AEC) is responsible for ensuring that
optimal settings of exposure and gain are computed and updated every other frame.
AEC can be enabled or disabled by R0x3100[0].
When AEC is disabled (R0x3100[0] = 0), the sensor uses the manual exposure value in
coarse and fine shutter width registers and the manual gain value in the gain registers.
When AEC is enabled (R0x3100[0]=1), the target luma value is set by R0x3102. For the
AR0130 this target luma has a default value of 0x0800 or about half scale.
The exposure control measures current scene luminosity by accumulating a histogram
of pixel values while reading out a frame. It then compares the current luminosity to the
desired output luminosity. Finally, the appropriate adjustments are made to the expo-
sure time and gain. All pixels are used, regardless of color or mono mode.
AEC does not work if digital binning is enabled.
Embedded Data and Statistics
Note:
The AR0130 has the capability to output image data and statistics embedded within the
frame timing. There are two types of information embedded within the frame readout:
1. Embedded Data: If enabled, these are displayed on the two rows immediately before
the first active pixel row is displayed.
2. Embedded Statistics: If enabled, these are displayed on the two rows immediately
after the last active pixel row is displayed.
Both embedded statistics and data must be enabled and disabled together.
Figure 17: Frame Format with Embedded Data Lines Enabled
Register Data
AR0130 DS Rev. L Pub. 6/15 EN
Image
Status & Statistics Data
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