AL250 datasheet(1/2 Pages) AVERLOGIC

Nome de Peças	AL250

Descrição Electrónicos	Video Scan Doubler

PDF	2 Pages

Scroll/Zoom	100%

Fabricante Electrônico	AVERLOGIC [AverLogic Technologies Inc]

Página de início	http://www.averlogic.com

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AVERLOGIC TECHNOLOGIES, INC. E-mail: sales_usa@averlogic.com

URL: www.averlogic.com

AVERLOGIC TECHNOLOGIES, CORP. E-mail: sales@averlogic.com.tw

URL: www.averlogic.com.tw

February 25, 2003

AL250

Video Scan Doubler

Applications

− TV Ready Multimedia Computer Monitor

− TV to PC Video Scan Converter Box

− Progressive Scan TV

− Video Game Station

− DVD Player

− Portable VCD Player

− LCD Monitor w/VGA Input

− Video Based Set-top Box

− LCD Projector

Description

The AL250 Video Scan Doubler (De-

Interlacer) is a video conversion chip for

consumer

video

and

multimedia

applications. It converts interlaced NTSC

or PAL, ITU-R BT 601 (CCIR601) or

square pixel, YUV422 or RGB565 digital

signals

into

computer

monitor

RGB

signals

for

direct

connection

to

a

computer monitor or progressive scan TV.

• Convert interlaced YUV/RGB (NTSC/PAL) into

non-interlaced RGB format for CRT or LCD

monitors

• Highly integrated design with built-in DAC, SRAM,

OSD and LUT

• Built-in on-screen-display with programmable bitmap

• Advanced digital line interpolation with no tearing or

jagged edge artifacts

• Reduced interlace flicker

• Auto NTSC/PAL detect

• Digital video input of square pixel, ITU-R BT 601

(CCIR 601), or user-defined format

• I2C programming interface

• Internal RGB video lookup table (LUT) to provide

gamma correction

• Overlay support for title making and complex on-

screen display

• Self-initialization without software (Plug & Play)

• 3.3 or 5 volt support

8-bit DAC

Video Processor

and Scan Doubler

R

G

B

Timing

Control

I2C Circuit

VCLK

HREF

AL250-01

Digital

YUV or RGB

input

Mode Control

Video

Formatter

RGB

Video

Lookup

Tables

Video Memory

VIDHS

VIDVS

RSET

VREF

COMP

VCLKX2

On-screen

Display

16

2

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