AR0141CS datasheet(5/64 Pages) ONSEMI

5 / 64 page

AR0141CS/D Rev. 6, 4/16 EN

©Semiconductor Components Industries, LLC, 2016.

AR0141CS: 1/4-Inch Digital Image Sensor

.Functional Overview

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

analog signal chain (providing offset correction and gain), and then through an analog-

to-digital converter (ADC). The output from the ADC is a 12-bit value for each pixel in

the array. The ADC output passes through a digital processing signal chain (which

provides further data path corrections and applies digital gain).

Figure 2:

Typical Configuration: Serial Four-Lane HiSPi Interface

Notes:

1. All power supplies must be adequately decoupled.

2. ON Semiconductor recommends a resistor value of 1.5k, but a greater value may be used for

slower two-wire speed.

3. The parallel interface output pads can be left unconnected if the serial output interface is used.

4. ON Semiconductor recommends that 0.1F and 10F decoupling capacitors for each power supply

are mounted as close as possible to the pad. Actual values and results may vary depending on lay-

out and design considerations. Check the AR0141CS demo headboard schematics for circuit recom-

mendations.

5. ON Semiconductor recommends that analog power planes are placed in a manner such that cou-

pling with the digital power planes is minimized.

6. I/O signals voltage must be configured to match VDD_IO voltage to minimize any leakage currents.

VDD_IO

VDD_SLVS

VDD_PLL

VDD

VAA

VDD

VAA

VAA_PIX

Master clock

(6–50 MHz)

SDATA

SCLK

RESET_BAR

TEST

EXTCLK

DGND

AGND

Digital

ground

Analog

ground

Digital

Core

power1

HiSPi

power1

Analog

power1

controller

From

controller

VDD_IO

VDD_PLL

PLL

power1

Digital

I/O

power1

Analog

power1

VAA_PIX

SLVSC_N

SLVSC_P

SLVS0_P

SLVS0_N

SLVS1_P

SLVS1_N

SLVS2_P

SLVS2_N

SLVS3_P

SLVS3_N

TRIGGER

OE_BAR

SADDR

SHUTTER

FLASH

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