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OV7141 반도체 회로 부품 판매점

(OV7141 / OV7640) B/w Vga 640 X 480 Digital CMOS Camerachipstm



OmniVision Technologies 로고
OmniVision Technologies
OV7141 데이터시트, 핀배열, 회로
Omni
ision
TM
Advanced Information
Preliminary Datasheet
OV7640 Color CMOS VGA (640 x 480) CAMERACHIPTM
OV7141 B&W CMOS VGA (640 x 480) CAMERACHIPTM
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
OV7640 (Color)
OV7141 (B&W)
Package
PLCC-28
PLCC-28
Applications
• Cellular and Picture Phones
• Toys
• PC Multimedia
Key Specifications
Power Supply
Power
Requirements
Temperature
Range
Array Size
Core
Analog
I/O
Active
Standby
Operation
Stable Image
Output Formats (8-bit)
Lens Size
Maximum Image
VGA
Transfer Rate
QVGA
Sensitivity
B&W
Color
S/N Ratio
Dynamic Range
Scan Mode
Maximum Exposure Interval
Gamma Correction
Pixel Size
Dark Current
Well Capacity
Fixed Pattern Noise
Image Area
Package Dimensions
640 x 480 (VGA)
2.5VDC + 10%
2.5VDC + 4%
2.25V to 3.3V
40 mW (30 fps, including
I/O power)
30 µW
-10°C to 70°C
0°C to 50°C
• YUV/YCbCr 4:2:2
• RGB 4:2:2
• Raw RGB Data
1/4"
30 fps
60 fps
3.0 V/Lux-sec
1.12 V/Lux-sec
46 dB
62 dB
Progressive/Interlaced
523 x tROW
0.45
5.6 µm x 5.6 µm
30 mV/s
60 Ke
< 0.03% of VPEAK-TO-PEAK
3.6 mm x 2.7 mm
11.43 mm x 11.43 mm
Figure 1 OV7640/OV7141 Pin Diagram
4 3 2 1 28 27 26
PWDN
5
NC 6
VREF
7
VDD_C
8
VSYNC
9
HREF 10
PCLK 11
OV7640/OV7141
25 Y0
24 Y1
23 Y2
22 Y3
21 Y4
20 Y5
19 Y6
12 13 14 15 16 17 18
Version 1.4, March 6, 2003
Proprietary to OmniVision Technologies
1


OV7141 데이터시트, 핀배열, 회로
OV7640/OV7141 CMOS VGA (640 x 480) CAMERACHIP
Omni ision
Functional Description
Figure 2 shows the functional block diagram of the OV7640/OV7141 image sensor. The OV7640/OV7141 includes:
Image Sensor Array (640 x 480 resolution)
Timing Generator
Analog Processing Block
A/D Converters
Output Formatter
Digital Video Port
SCCB Interface
Figure 2 OV7640/OV7141 Functional Block Diagram
Analog Processing
Saturation
Hue
Brightness
Gain
WB
Gamma
R GB
MUX
Y Cb Cr
MUX
A/D
A/D
Output
Formatter
Data
Formatting
Windowing
RESET
PWDN
CLK
HREF
PCLK
VSYNC
SIO_C
SIO_D
Image Array
(640 x 480)
Column Sense Amps
Timing Generator
Control
Registers
(To all circuits)
SCCB
Interface
Digital Video
Port
Y[7:0]
VREF
1.0 µf
2 Proprietary to OmniVision Technologies
Version 1.4, March 6, 2003




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OV7141 cmos

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(OV7141 / OV7640) B/w Vga 640 X 480 Digital CMOS Camerachipstm - OmniVision Technologies