OV7640 datasheet(1/18 Pages) OMNIVISION

Part #	OV7640

Description	OV7640 Color CMOS VGA (640 x 480) CAMERACHIPTM OV7140 B&W CMOS VGA (640 x 480) CAMERACHIPTM

PDF	18 Pages

Scroll/Zoom	100%

Manufacturer	OMNIVISION [OmniVision Technologies, Inc.]

Direct Link	http://www.ovt.com

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1 / 18 page

Version 1.3, January 15, 2003

Proprietary to OmniVision Technologies

1

Advanced Information

Preliminary Datasheet

OV7640 Color CMOS VGA (640 x 480) CAMERACHIPTM

OV7140 B&W CMOS VGA (640 x 480) CAMERACHIPTM

Omni

TM

ision

General Description

The OV7640 (color) and OV7140 (black and white)

CAMERACHIPSTM are low voltage CMOS image sensors

that provide the full functionality of a single-chip VGA

(640 x 480) camera and image processor in a small

footprint

package.

The

OV7640/OV7140

provides

full-frame, sub-sampled or windowed 8-bit images in a

wide range of formats, controlled through OmniVision’s

Serial Camera Control Bus (SCCB) interface.

This product family has an image array capable of

operating at up to 30 frames per second (fps) with

complete user control over image quality, formatting and

output data transfer. All required image processing

functions, including exposure control, gamma, white

balance, color saturation, hue control and more, are also

programmable through the SCCB interface. In addition,

OmniVision

CAMERACHIPs

use

proprietary

sensor

technology to improve image quality by reducing or

eliminating common lighting/electrical sources of image

contamination such as fixed pattern noise, smearing,

blooming, etc. to produce a clean, fully stable color image.

Features

•

High sensitivity for low-light operation

•

2.5V operating voltage for embedded portable

applications

•

Standard Serial Camera Control Bus (SCCB)

interface

•

VGA, QVGA (sub-sampled) and Windowed outputs

with Raw RGB, RGB (GRB 4:2:2), YUV (4:2:2) and

YCbCr (4:2:2) formats

•

Automatic image control functions including:

Automatic Exposure Control (AEC), Automatic Gain

Control (AGC), Automatic White Balance (AWB),

Automatic Brightness Control (ABC), Automatic

Band Filter (ABF) for 60Hz noise and Automatic

Black-Level Calibration (ABLC)

•

Image quality controls including color saturation,

hue, gamma, sharpness (edge enhancement),

anti-blooming and zero smearing

Ordering Information

Product

Package

OV7640 (Color)

PLCC-28

OV7140 (B&W)

PLCC-28

Applications

•

Cellular and Picture Phones

•Toys

•

PC Multimedia

Key Specifications

Figure 1 OV7640/OV7140 Pin Diagram

Array Size

640 x 480 (VGA)

Power Supply

Core

2.5VDC + 10%

Analog

2.5VDC + 4%

I/O

2.25V to 3.3V

Power

Requirements

Active

40 mW (30 fps, including

I/O power)

Standby

30 µW

Temperature

Range

Operation

-10°C to 70°C

Stable Image

0°C to 50°C

Output Formats (8-bit)

• YUV/YCbCr 4:2:2

• RGB 4:2:2

•Raw RGB Data

Lens Size

1/4"

Maximum Image

Transfer Rate

VGA

30 fps

QVGA

60 fps

Sensitivity

B&W

2.20 V/Lux-sec

Color

1.12 V/Lux-sec

S/N Ratio

46 dB

Dynamic Range

62 dB

Scan Mode

Progressive/Interlaced

Maximum Exposure Interval

523 x tROW

Gamma Correction

0.45

Pixel Size

5.6 µm x 5.6 µm

Dark Current

30 mV/s

Well Capacity

60 Ke

Fixed Pattern Noise

< 0.03% of VPEAK-TO-PEAK

Image Area

3.6 mm x 2.7 mm

Package Dimensions

11.43 mm x 11.43 mm

25

Y0

24

Y1

23

Y2

22

Y3

21

Y4

20

Y5

19

Y6

27

26

28

1

2

3

4

12

13

14

15

16

17

18

5

PWDN

6

NC

7

VREF

8

VDD_C

9

VSYNC

10

HREF

11

PCLK

OV7640/OV7140

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