[AVERLOGIC]

General 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 broadcastquality NTSC or PAL TV signals. In addition to analog RGB, 24-bit digital RGB data can be input to maintain the best video quality and avoid noise problems. This new chip is pin-topin compatible with the AverLogic AL100 but provides analog RGB output for SCART implementation.

Features

• 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

• Broadcast TV quality

• High clarity 5-line anti-flicker filter

• 8 levels of sharpness control

• Plug and play with no need for software or micro-controller

• Supports up to full 1024x768 VGA resolution

• Automatically supports scan rate from 50 Hz up to 100 Hz

• Linear vertical and horizontal overscan/ underscan control

• Zoom and freeze controls

• Four-touch-button interface with on-screenmenu (on TV) to control all key functions

• Horizontal and vertical position centering control

• Optional digital 24-bit RGB/VAFC interface for best quality

• Power down feature controlled by software or hardware

• Full programmability via I2C interface

• Picture panning control

• Brightness control

• Built-in color bar

• Simultaneous display on PC and TV monitors

• Single 5-volt support

• Thin, small LQFP package for PCMCIA or notebooks. 28x28 PQFP available upon request

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