SD1010A Datasheet, PDF (3/45 Pages) List of Unclassifed Manufacturers – Analog-Interface XGA TFT LCD Display Controller

SmartASIC, Inc.
SD1010A
1. OVERVIEW
The SD1010A is enhanced version of the SD1000 chip. It is an IC designed for
analog-interface XGA TFT LCD monitors. An analog-interface LCD monitor takes
analog RGB signals from a graphic card of a personal computer, the exact same input
interface as a conventional CRT monitor. This feature makes analog-interface LCD
monitor a true replacement of a conventional CRT monitor.
The analog input RGB signals are first sampled by three channels of 8-bit A/D
converters, and the 24-bit RGB data are then fed into the SD1010A. The SD1010A is
capable of performing automatic detection of the display resolution and timing of
input signals generated from various PC graphic cards. No special driver is required
for the timing detection, nor any manual adjustment. The SD1010A then
automatically scales the input image to fill the full screen of the LCD monitor. The
SD1010A can interface with TFT LCD panels from various manufacturers by
generating either 24-bit or 48-bit RGB signal to the LCD panel based upon the timing
parameters saved in the EEPROM.
The SD1010A implements four advanced display technologies:
1. Advanced mode detection and auto-calibration without any external CPU assist
2. Advanced programmable interpolation algorithm
3. Stand-alone mode support, and
4. Advanced true color support with both dithering and frame modulation.
The SD1010A also provides distinguished system features to the TFT LCD monitor
solution. The first one is “plug-and-play”, and the second one is “cost-effective
system solution”. To be truly plug-and-display, the SD1010A performs automatic
input mode detection and auto phase calibration, so the LCD monitor can ensure that
the A/D converters’ sample clock is precisely synchronized with the input video data,
and to preserve the highest image bandwidth for the highest image quality.
Furthermore, the SD1010A can generate output video even when the input signal is
beyond the specifications or no input signal is fed.
For “cost-effective system solution”, the SD1010A implements many system support
features such as OSD mixer, error status indicators, 2-wire serial interface for both
EEPROM and host CPU interface, and low-cost IC package. Another important
contributing factor is that the SD1010A does not require external frame buffer
memory for the automatic image scaling and synchronization.
Figure 1 shows the block diagram of the SD1010A as well as the connections of
important system components around the SD1010A.
November, 1999
SmartASIC Confidential
3
Revision B