AL128
Plug and Play VGA to NTSC / PAL Converter
Applications
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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
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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 I
2
C interface
Brightness control
Built-in color bar
Thin, small LQFP package for PCMCIA or notebooks
28x28 PQFP package available upon request
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.
Field Memory
/PWRDN
PAL
/RESET
INTYPE
RGB
MEMCONF
Memory
Management
Unit
ADEN
Digital R, G, B
8-bit
ADC
8-bit
ADC
8-bit
ADC
Memory
Configuration
Setup
MEMTYPE
MWENH
MWRST
MWENL
MWCLK
MRRST
MRCLK
MREN
MQ
MD
R
G
B
VRT
VRB
GCLK
GHSDIV
GHSYNC
GVSYNC
MUX
Digital
Video
Processor
Digital
TV
Encoder
9-bit
DAC
9-bit
DAC
9-bit
DAC
AY / R
AC / G
ACMP / B
RSET
Video
Memory
VREF
COMP
Timing
Generating
I
2
C
Interface
2
C
Push Button
Interface
XOUT1
XIN1
I2C
XIN2
I2CADDR
XOUT2
TVCLK
MENU
GHSOUT
GVSOUT
SELECT
DEC
SCL
SDA
INC
AL128-01
A
VER
L
OGIC
T
ECHNOLOGIES
, I
NC
. E-mail: sales_usa@averlogic.com
A
VER
L
OGIC
T
ECHNOLOGIES
, C
ORP
. E-mail: sales@averlogic.com.tw
URL: www.averlogic.com
URL: www.averlogic.com.tw
February 25, 2003
AVERLOGIC [ AVERLOGIC TECHNOLOGIES INC ]
