PAS302BCW-22S

CMOS Image Sensor IC

Version 2.4, 20 Sep. 2005

PixArt Imaging Inc.

E-mail: fae_service@pixart.com.tw

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PAS302BCW-22S CMOS VGA DIGITAL IMAGE SENSOR

General Description

The PAS302BCW-22S is a highly integrated CMOS active-pixel image sensor that has a VGA

resolution of 644H x 484V. The PAS302BCW-22S outputs 8-bit RGB raw data through a parallel data

bus and is available in 22-pin CSP package.

The PAS302BCW-22S can be programmed to set the exposure time for different luminance condition

IC

serial control bus. By programming the internal register sets, it can perform on-chip frame

rate adjustment, offset correction DAC and programmable gain control.

Key Specification

Supply Voltage

2.5V ~ 3.3V

Resolution

644(H) x 484(V)

Array diagonal

4.5mm (~1/4”Optic)

Pixel Size

5.6

µmx5.6µm

Chief Ray Angle

20∘ ~ 22∘

Frame rate

~30 fps

System clock

Up to 48 MHz

Pixel clock

Up to 12MHz

Sensitivity

1.56 V/Lux-Sec

Color filter

RGB Bayer Pattern

Exposure Time

~ Frame time to Line time

Scan Mode

Progressive

S/N Ratio

> 45 dB

Features

VGA(644 x 484 pixels) resolution, ~1/4”

Lens

Bayer-RGB color filter array

Output format: 8-bit parallel RGB raw data

On-chip 10-bit pipelined A/D converter

On-chip programmable gain amplifier

4-bit color gain amplifier (x1~x2)

4-bit global gain amplifier (x1~x2)

Digital gain stage

Continuous variable frame

time(1/2sec~1/30sec)

Continuous variable exposure time

2TM

IC

Interface

Support flash light timing

Single 2.5V / 3.3V supply voltage

< 15mA(~30 fps) power dissipation

2µA power dissipation when power down

mode

Window-Of-Interest (WOI)

Sub-sampling

Defect compensation

Pin-to-pin compatible to OV7648

Package

22-pin lead-free CSP

Note1: Only two decoupling capacitors needed

Note2: Good sensitivity compared to competitors