AL128 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – Plug and Play VGA to NTSC/PAL Converter

AL128
Plug and Play VGA to NTSC / PAL Converter
Applications
− PC ready multimedia TV
− TV output for laptop, network,
entertainment PC
− Net browser/set-top box
− Internet TV
− VGA add-on card with TV output
− VGA to TV converter box
Description
The AL128 PC to TV scan converter chip
accepts graphic data up to 1024x768
resolution from PC and Macintosh graphics
controllers and converts it into high quality
NTSC or PAL TV signals. This new chip is
pin-to-pin compatible with the AverLogic
AL100 but provides analog RGB output for
SCART implementation.
• Convert non-interlaced VGA or Macintosh video into
interlaced TV format (NTSC/PAL)
• Analog RGB output for SCART interface
• Highly integrated design with built-in NTSC/PAL
encoder, ADC, DAC and SRAM
• High clarity 5-line anti-flicker filter
• 8 levels of sharpness control
• Supports up to full 1024x768 VGA resolution
• Automatically supports scan rate from 50Hz up to 100Hz
• Linear vertical and horizontal over/underscan control
• Zoom and freeze controls
• Four-touch-button interface with on-screen-menu on TV
• Horizontal and vertical position/panning control
• Optional digital 24-bit RGB/VAFC interface
• Power down feature controlled by software or hardware
• Full programmability via I²C interface
• Brightness control
• Built-in color bar
• Thin, small LQFP package for PCMCIA or notebooks
• 28x28 PQFP package available upon request
Field Memory
ADEN
Digital R, G, B
R
G
B
VRT
VRB
GCLK
GHSDIV
GHSYNC
GVSYNC
Memory
Management
Unit
8-bit
ADC
8-bit
ADC
8-bit
ADC
MUX
Timing
Generating
Digital
Video
Processor
Video
Memory
I²C
2
C
Interface
Memory
Configuration
Setup
9-bit
Digital
DAC
TV
Encoder
9-bit
DAC
9-bit
DAC
Push Button
Interface
AY / R
AC / G
ACMP / B
RSET
VREF
COMP
AVERLOGIC TECHNOLOGIES, INC. E-mail: [e-mail]
AVERLOGIC TECHNOLOGIES, CORP. E-mail: [e-mail]
AL128-01
URL: www.averlogic.com
URL: www.averlogic.com.tw
February 25, 2003