AR0130CSSC00SPBA0-DP1 datasheet(27/49 Pages) ONSEMI

27 / 49 page

AR0130CS/D Rev. 12,

1/16 EN

©Semiconductor Components Industries, LLC, 2016.

AR0130CS: 1/3-Inch CMOS Digital Image Sensor

Features

Gain

Digital Gain

Digital gain can be controlled globally by R0x305E (Context A) or R0x30C4 (Context B).

There are also registers that allow individual control over each Bayer color (GreenR,

GreenB, Red, Blue).

The format for digital gain setting is xxx.yyyyy where 0b00100000 represents a 1x gain

setting and 0b00110000 represents a 1.5x gain setting. The step size for yyyyy is 0.03125

while the step size for xxx is 1. Therefore to set a gain of 2.09375 one would set digital

gain to 01000011.

Analog Gain

The AR0130 has a column parallel architecture and therefore has an Analog gain stage

per column.

There are two stages of analog gain, the first stage can be set to 1x, 2x, 4x or 8x. This is can

be set in R0x30B0[5:4](Context A) or R0x30B0[9:8] (Context B). The second stage is

capable of setting an additional 1x or 1.25x gain which can be set in R0x3EE4[8].

This allows the maximum possible analog gain to be set to 10x.

Black Level Correction

Black level correction is handled automatically by the image sensor. No adjustments are

provided except to enable or disable this feature. Setting R0x30EA[15] disables the auto-

matic black level correction. Default setting is for automatic black level calibration to be

enabled.

The automatic black level correction measures the average value of pixels from a set of

optically black lines in the image sensor. The pixels are averaged as if they were light-

sensitive and passed through the appropriate gain. This line average is then digitally

low-pass filtered over many frames to remove temporal noise and random instabilities

associated with this measurement. The new filtered average is then compared to a

minimum acceptable level, low threshold, and a maximum acceptable level, high

threshold. If the average is lower than the minimum acceptable level, the offset correc-

tion value is increased by a predetermined amount. If it is above the maximum level, the

offset correction value is decreased by a predetermined amount. The high and low

thresholds have been calculated to avoid oscillation of the black level from below to

above the targeted black level. At high gain, long exposure, and high temperature condi-

tions, the performance of this function can degrade.

Row-wise Noise Correction

Row (Line)-wise Noise Correction is handled automatically by the image sensor. No

adjustments are provided except to enable or disable this feature. Clearing R0x3044[10]

disables the row noise correction. Default setting is for row noise correction to be

enabled.

Row-wise noise correction is performed by calculating an average from a set of optically

black pixels at the start of each line and then applying each average to all the active

pixels of the line.

AR0130CSSC00SPBA0-DP1 Datasheet(PDF) 27 Page - ON Semiconductor

AR0130CSSC00SPBA0-DP1 Datasheet(HTML) 27 Page - ON Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

Datasheet Download

Link URL