Data Sheet

2 Proprietary to OmniVision Technologies, Inc. Version 1.1, March 30, 2007
OV7725 Color CMOS VGA OmniPixel2™ CAMERACHIP™ Sensor
O
mni ision
Functional Description
Figure 2 shows the functional block diagram of the OV7725 image sensor. The OV7725 includes:
• Image Sensor Array (total array of 656 x 488 pixels, with active pixels 640 x 480 in YUV mode)
• Analog Signal Processor
• A/D Converters
• Test Pattern Generator
• Digital Signal Processor (DSP)
• Image Scaler
• Timing Generator
• Digital Video Port
• SCCB Interface
Figure 2 Functional Block Diagram
column
sense amp
row select
image
array
HREF
PCLK
VSYNC
SCL
RSTB
FSIN
PWDN
clock
exposure/
gain detect
test pattern
generator
FIFODSP*
bufferbuffer
image
scaler
analog
processing
video timing
generator
DSP* (lens shading correction, de-noise, white/black pixel correction, auto white balance, etc.)note 1
exposure/gain
control
SCCB
interface
XCLK
SDA
registers
A/D
G
R
B
D[9:0]
video
port
7725CSP_DS_0
02