SDA9415-B13 Datasheet, PDF (23/185 Pages) Micronas – Display Processor and Scan Rate Converter

SDA 9415 - B13
Preliminary Data Sheet
5
System description
System description
5.1
Introduction
The SDA 9415 is the first single-chip Micronas MEGAVISION^® feature box including
scan rate conversion and the necessary field memories, a second input channel for split
screen applications like picture-and-picture and digital-to-analog converters. The SDA
9415 has three application modes: the SRC (Scan Rate Conversion) mode, the SSC
(Split SCreen) mode and the MUP (MUlti Picture) mode.
The two input channels of the SDA 9415 are not equivalent. One input channel is always
the so called “master” channel and one input channel is always the so called “slave”
channel. Both channels are combined of the output side of the SDA 9415 in the “MUX”
block. The master channel is always the "synchronization" master of both channels.
In the SRC mode the SDA 9415 can be used as a high performance scan rate converter.
Scan rate conversion is done by a motion compensated algorithm known as Micronas
VDU (Vector Driven Up conversion). In addition a high resolution frame based joint-line-
free picture-and-picture (maximum approximately 1/9 picture) can be displayed. The
figure below shows an example of the SRC mode.
Figure 4 Principles of SRC mode
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Micronas