OV7620 datasheet(7/60 Pages) ETC

7 / 60 page

OV7620 Product Specifications - Rev. 1.2 (5/13/00)

OMNIVISION TECHNOLOGIES INC.

Preliminary Company Confidential

1.3 CHIP OPERATION

Referring to FIG 1.1, OV7620 includes a 664x492 resolution image array, an analog signal pro-

cessor, 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.

FIG 1.1 OV7620Block Diagram

OV7620is 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 read out scheme. The color filter of the sensor consists of primary color

RG/GB array arranged in line alternating fashion.

RVO

BUO

GYO

image

column sense amp

array

VcSAT

GAMMA

white

exposure

detect

control

balance

detect

AWB

AGCEN

XVCLK1

(664X492)

RGB

1/2

sys-clk

AWBTH/

VcCNT

FODD

VSYNC

HREF

PCLK

video

timing

generator

FZEX

exposure

control

VrEQ

VcSHP

FREZ

CHSYNC

ADC

Y(7:0)

UV(7:0)

SCCB

interface

SIO-1

SIO-0

registers

ADC

analog

processing

FSIN

MIR

DENB

PROG

AWBTM

SBB

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