14 VFC-2100DE
– Scaler with Digital Effects
Manual # 26-6092936-00 / Revision A
The three options for
CLAMP GATE
are
SYNC
,
BP
and
DLY
. Set this field to the appropriate option per the
conditions outlined below.
BP
Used for the majority of video types. When this option is selected, the VFC will DC
Restore to the Back Porch of the video signal.
SYNC
Select this option when the input video has no or a short back porch. This option is only
valid when the source contains separate syncs. If there is sync on the video, the user should not select this option.
DLY
Use this option when the video contains tri-level sync, for example HDTV. In this case the VFC unit will
delay the DC Restore pulse on the back porch.
Use the
AR
field to adjust the input Aspect Ratio. The field is shown in decimal form and is calculated as follows:
Ex. 4:3 = 4/3 = 1.333
To fill the output screen and avoid black bars along the sides or top of the final image, match the output aspect ratio
to the input (see section 6.3.2.1.4)
The
OVR SAMPLE
field is used to adjust the number of input samples taken by the VFC unit. For example, if the
input contains 1000 Horizontal Active pixels and the
OVR SAMPLE
field is set to 1.50, then the number of samples
taken on the input is 1500 (1000 X 1.50).
Reacquire Input
Pressing the
ON/+
or key while the
REACQUIRE INPUT
field is bracketed will allow the user to reacquire the input on
either Scaler A or Scaler B.
Input Raster Size / Position Menu
The
IN RSTR SIZE/POS
menu shown above allows the user to adjust the size and position of the incoming video for
final display.
Left and Right Edge, Top and Bottom Adjustments
The first four menu options in the Size and Position Menu allow the user to fine-tune the size of the image edges. By
placing the brackets around the field that needs to be adjusted, the user can press the
ON/+
or
OFF/-
keys to move
the edge of the image to a desired position.
Input Aspect Ratio
Pressing the
ON/+
or
OFF/-
key while the
AR
is field is bracketed will allow the user to increment and decrement the
Input Aspect Ratio. This option is available in order to distort the aspect ratio of the input image.
INPUT SIZE/POS
RIGHT EDGE <
>
LEFT EDGE <
>
TOP <
>
BOTTOM <+>
AR <#.###>
AR BOX <NA>
RESET <+>
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Summary of Contents for 2100DE
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