download document

OV7725 VGA product brief
High Performance, All-digital VGA Camera Solution
available in
a lead-free
package
The OV7725 CameraChip™ sensor is a high-performance
1/4 inch, single-chip VGA camera and image processor in
a small footprint package. Operating at full functionality,
the OV7725 meets all PC multimedia and cameraphone
market requirements in terms of performance, quality
and reliability. The low-power OV7725 excels in low light
conditions and can operate in a wide temperature range,
from -20ºC to +70ºC.
The OV7725 provides full-frame, sub-sampled or
windowed 8-bit/10-bit images in a wide range of formats,
controlled through the serial camera control bus (SCCB)
interface. The OV7725 possesses all required camera
processing functions including exposure control, gamma,
white balance, color saturation, hue control and more.
These functions are also programmable through the SCCB
interface.
The OV7725 incorporates a 640 x 480 image array,
capable of operating at 60 frames per second in VGA
mode with complete user control over image quality,
formatting and output data transfer.
Find out more at www.ovt.com.
OV7725
Applications
 camera phones
 toys
 digital still cameras
ordering information
 webcams
 OV07725-V28A
(color, lead-free, CSP2-28)
 OV07221-V28A
(b&w, lead-free, CSP2-28)
Product Specifications
Product Features
 high sensitivity for low-light
operation
 image quality controls including
color saturation, hue, gamma,
sharpness (edge enhancement), and
anti blooming
 standard SCCB interface
 output support for:
– raw RGB
– RGB (GRB 4:2:2, RGB565/555/444)
 lens shading correction
– YCbCr (4:2:2) formats
 power supply
 electronic exposure
up to 510:1 (for selected fps)
 sensitivity: 3800 mV/lux-sec
 power requirements
active: 120 mW (60 fps VGA, YUV)
standby: <20 μA
 saturation level auto adjust
(UV adjust)
 temperature range
 dynamic range: 60 dB
 fixed pattern noise:
< 0.03% of V PEAK-TO-PEAK
 output formats:
8-bit YUV/YCbCr 4:2:2, RGB565
555/444, GRB 4:2:2, Raw RGB Data,
10-bit Raw RGB Data
automatic exposure control (AEC)
automatic gain control (AGC)
automatic white balance (AWB)
automatic band filter (ABF)
automatic black-level calibration
(ABLC)
 max S/N ratio: 50 dB
 pixel size: 6.0 μm x 6.0 μm
-20oC to +70oC
 edge enhancement level auto adjust
 VarioPixel® method for sub sampling  noise suppression technology auto
adjust
 automatic image control functions
including:
 frame synchronization capability
–
–
–
–
–
 scan mode: progressive
analog: 3.0V to 3.6V
digital core: 1.8 VDC ± 10%
I/O: 1.7V to 3.3V
 ISP includes noise reduction and
defect correction
 supports image sizes: VGA, QVGA,
and any size scaling down from CIF
to 40x30
 array size: 640 x 480
 dark current: 40 mV/s
 image area:
3984 μm x 2952 μm
 lens size: 1/4”
 lens chief ray angle: 25° non-linear
 maximum image transfer rate:
– 60 fps for VGA
 package dimensions:
– CSP2: 5345 μm x 5265 μm
– COB: 5360 μm x 5260 μm
Functional Block Diagram
row select
column
sense amp
G
analog
processing
image
array
R
buffer
buffer
DSP*
image
scaler
A/D
B
exposure/
gain detect
video
port
FIFO
D[9:0]
test pattern
generator
registers
SCL
SCCB
interface
SDA
RSTB
exposure/gain
control
PWDN
PCLK
VSYNC
FSIN
XCLK
HREF
video timing
generator
clock
note 1 DSP* (lens shading correction, de-noise, white/black pixel correction, auto white balance, etc.)
4275 Burton Drive
Santa Clara, CA 95054
Version 1.2, March, 2014
tel: +1 408 567 3000
fax: +1 408 567 3001
www.ovt.com
OmniVision reserves the right to make changes to their products or to discontinue any
product or service without further notice. ‘OmniVision’, the OmniVision logo,
‘VarioPixel’, and ‘OmniPixel’ are registered trademarks of OmniVision Technology. All
other trademarks are the property of their respective owners.
7725_PB_001
Similar pages