Epson Research and Development
Page 21
Vancouver Design Center
TV Filters
When displaying computer images on a TV, several
image distortions may arise. The S1D13506 incorpo-
rates three filters which reduce these distortions. Each
filter type is enabled by checking the associated box.
Luminance
The luminance filter adjusts the brightness of the TV
and reduces the “rainbow-like” colors at the boundaries
between sharp luminance transitions. This filter is most
useful for composite video output.
Chrominance
Flicker
The chrominance filter adjusts the color of the TV and
reduces the “ragged edges” seen at the boundaries
between sharp color transitions. This filter is most
useful for composite video output.
The “flickering” effect seen on interlaced displays is
caused by sharp vertical image transitions such as
window edges. Turning on the anti-flicker filter
averages adjacent lines on the TV display to reduce
flickering.
TV Output
Selects the TV output format: Composite or S-Video.
CRT DAC output level
When the CRT is active, the CRT DAC Output Level
can be used to double values output to the DAC. This
would normally result in very bright colors on the
display, but if IREF is reduced at the same time the
display will remain at its intended brightness and power
consumption is reduced.
For more information on setting the CRT DAC output
level, see the S1D13506 Hardware Functional Specifi-
cation, document number X25B-A-001-xx.
Note
For CRT operations, 13506CFG supports VESA timings only. For TV operations,
13506CFG supports NTSC and PAL timings only. Overriding these register values on
the Registers page may cause the CRT or TV to display incorrectly.
13506CFG Configuration Program
Issue Date: 01/03/14
S1D13506
X25B-B-001-02
EPSON [ EPSON COMPANY ]
