PAC407BCA/PAC407BCW

CMOS Image Sensor IC

Version 1.7, 13 Sep

2004

PixArt Imaging Inc.

E-mail: fae_service@pixart.com.tw

1

PAC407 CMOS VGA DIGITAL IMAGE SENSOR

General Description:

The PAC407 is a highly integrated CMOS active-pixel image sensor that has a VGA resolution (644H x 484V or

640H x 480V). The PAC407 outputs 8-bit data with wide range of formats include RGB Raw Data, RGB565 and

YCbCr422 through an 8-bit parallel data bus. It is available in 32-pin LCC and 22-pin CSP.

To have an excellent image quality, the PAC407 supports all require image processing functions, includes

Automatic Exposure Control, Automatic White Balance, Gamma Correction, Color Saturation Correction, Edge

Enhancement, Lens Shading Compensation and Defect Compensation. These functions are all programmable via

2TM

IC

serial control bus.

<25mA(~15 fps) power dissipation

2TM

IC

Serial Interface

Pin-to-pin compatible to OV7648

(Except for the polarity of RESET pin)

Key Specification:

Supply Voltage

2.8V to 3.3V

Resolution

640x480(YUV) or 644x484(Raw)

Array diagonal

4.5mm (~1/4”Optic)

Pixel Size

5.6

µmx5.6µm

Frame rate

~30 fps

System clock

Up to 26 MHz

26 MHz

BCA

1.4 V/Lux-Sec

Sensitivity

BCW

1.2 V/Lux-Sec

Color filter

RGB Bayer Pattern

Exposure Time

~ 4us to 0.1412s

Scan Mode

Progressive

S/N Ratio

> 45 dB

BCA

32-pin LCC

Package

BCW

22-pin CSP

Features:

VGA, QVGA, QQVGA (Sub-sampling) and

Window Of Interest (WOI) outputs with 8-bit

parallel data mode, the formats include:

o

Raw Data

o

RGB565

o

YCbCr422

VGA resolution, ~1/4” Lens

o

644 x 484 pixels (Raw Data)

o

640 x 480 pixels (YUV/RGB)

Bayer-RGB color filter array

Continuous variable frame time(1/2sec~1/30sec)

On-chip 10-bit pipelined A/D converter

On-chip programmable gain amplifier

o

4-bit color gain amplifier (x1~x2)

o

4-bit global gain amplifier (x1~x2)

Automatic image control functions:

o

AEC: Automatic Exposure Control

o

AWB: Automatic White Balance

Image quality control:

o

Color Saturation

o

Gamma Correction

o

Sharpness (Edge Enhancement)

o

Smooth filter for skin

Defect Compensation

Lens Shading Compensation

X Flip Function for mirrored image

Digital Zoom (x2, x4)

Note1: Only 2 decouple-capacitors needed.

Note2: Excellent sensitivity.