Version 1.4, March 6, 2003
Proprietary to OmniVision Technologies
1
Advanced Information
Preliminary Datasheet
OV7640 Color CMOS VGA (640 x 480) CAMERACHIPTM
OV7141 B&W CMOS VGA (640 x 480) CAMERACHIPTM
Omni
TM
ision
General Description
The OV7640 (color) and OV7141 (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/OV7141
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
OV7141 (B&W)
PLCC-28
Applications
•
Cellular and Picture Phones
•Toys
•
PC Multimedia
Key Specifications
Figure 1 OV7640/OV7141 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
3.0 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/OV7141
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