AR0141CS2C00SUEA0-DP(2015) View Datasheet(PDF) - ON Semiconductor
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AR0141CS2C00SUEA0-DP Datasheet PDF : 63 Pages
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AR0141CS: 1/4-Inch Digital Image Sensor
General Description
General Description
The ON Semiconductor AR0141CS can be operated in its default mode or programmed
for frame size, exposure, gain, and other parameters. The default mode output is a 720p-
resolution image at 60 frames per second (fps). In linear mode, it outputs 12-bit raw
data, using either the parallel or serial (HiSPi) output ports. The device may be operated
in video (master) mode or in single frame trigger mode.
FRAME_VALID and LINE_VALID signals are output on dedicated pins, along with a
synchronized pixel clock in parallel mode.
The AR0141CS includes additional features to allow application-specific tuning:
windowing and offset, auto black level correction, and on-board temperature sensor.
Optional register information and histogram statistic information can be embedded in
the first and last 2 lines of the image frame.Functional Overview
The AR0141CS is a progressive-scan sensor that generates a stream of pixel data at a
constant frame rate. It uses an on-chip, phase-locked loop (PLL) that can be optionally
enabled to generate all internal clocks from a single master input clock running between
6 and 50 MHz. The maximum output pixel rate is 148.5 Mp/s, corresponding to a clock
rate of 74.25 MHz. Figure 1 shows a block diagram of the sensor.
Figure 1: Block Diagram
ADC data
Row noise correction
Black level correction
Test pattern generator
Pixel defect correction
Adaptive CD filter
Digital gain and
pedestal
12 or 10 bits
Parallel
12 bits
HiSPi
User interaction with the sensor is through the two-wire serial bus, which communi-
cates with the array control, analog signal chain, and digital signal chain. The core of the
sensor is a 1.1 Mp Active- Pixel Sensor 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 integrate
incident light. The exposure is controlled by varying the time interval between reset and
readout. Once a row has been read, the data from the columns is sequenced through an
AR0141CS DS Rev. D Pub. 6/15 EN
6
©Semiconductor Components Industries, LLC, 2015.
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