ov7620 OmniVision Technologies, Inc, ov7620 Datasheet - Page 8

• Manufacturer Part Number: ov7620
• Description: Single-chip Cmos Vga Color Digital Camera
• Manufacturer: OmniVision Technologies, Inc

OV7620/OV7120 Product Specifications - Rev. 1.2 (7/10/01)
0.1 OV7620/OV7120 7120CHIP OPERATION
Referring to FIG 0.1, OV7620/OV7120 includes a 664x492 resolution image array, an analog sig-
nal processor, dual 10bit A/D converters, analog video mux, digital data formatter and video port,
SCCB interface with its registers, the digital controls including timing block, exposure block and
white balance.
The OV7620/OV7120 is a 1/3 inch CMOS imaging device. The sensor contains approximately
326,688 pixels. It is base on field integration read-out system with line-by-line transfer and an
electronic shutter with synchronous pixel readout scheme. The color filter of the sensor consists
of primary color RG/GB array arranged in line-alternating fashion.
VrEQ
XVCLK1
1/2
VcSHP
sys-clk
HREF
PCLK
video
timing
generator
VSYNC
column sense amp
FODD
VcSAT
analog
processing
(664X492)
FREZ
image
array
VcCNT
CHSYNC
FIG 0.1 OV7620/OV7120 Block Diagram
GAMMA
FSIN
MIR
g
b
r
PROG
AGCEN
Cr
exposure
control
Cb
Y
Preliminary
FZEX
exposure
detect
AWB
WB
control
white
balance
detect
mx
mx
mx
RGB
AWBTH/
AWBTM
Company Confidential
OMNIVISION TECHNOLOGIES INC.
RVO
BUO
GYO
ADC
ADC
SIO-1
registers
SCCB
interface
SIO-0
DENB
SBB
Y(7:0)
UV(7:0)