Data Sheet

10.13.2009 PRODUCT SPECIFICATION proprietary to OmniVision Technologies
2-1
2 system level description
The OV7675 (color) and OV7175 (b&w) image sensors are low voltage, high-performance 1/9-inch VGA CMOS image
sensors that provides the full functionality of a single chip VGA (640x480) camera using OmniPixel3-HS™ technology
in a small footprint package. They provide full-frame, sub-sampled, windowed and images in VGA, QVGA and QQVGA
formats via the control of the Serial Camera Control Bus (SCCB) interface.
The OV7675/OV7175 has an image array capable of operating at up to 30 frames per second (fps) in VGA resolution
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, defective pixel canceling,
noise canceling, etc., are programmable through the SCCB interface. In addition, OmniVision image sensors 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, etc., to produce a clean, fully stable, color image.
figure 2-1 OV7675/OV7175 block diagram
column
sample/hold
image sensor core
OV7675/OV7175
image sensor processor image output
interface
row select
black level
calibration
digital gain
PLL
control register bank
SCCB
slave
interface
timing generator
and system control logic
DSP
image
array
gain
control
XVCLK
PWDN
VSYNC
HREF
PCLK
SCL
SDA
AMP
10-bit
A/D
D[7:0]DVP
7675_DS_2_1
formatter
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