12. Image Files Menu
Advanced edit
Comb filter
On Off
AGC hold interval
Short Long
Sync locking
Slow Fast
Sharpness
Coarse Fine
Image12-8
video signal video signal
frame blanking
HI
egalisation
Image12-9
HI AGC Hold interval
The Comb filter is by default enabled.
TheAGC hold interval is the time interval in which the AGC is inhibited (AGC hold = no update in video amplitude measurement),
the advanced parameter allows to choose a short or long hold interval.
A long AGC hold interval eliminates Macrovision®disturbances since the AGC is hold during a long interval, thus reducing the
probability to encounter a Macrovision®pulse.
Thesync locking setting is recommended fo r poor video signals( ex: poor TV signals).
Sharpness adjustment can be chosen to be coarse or fine.
It is recommended to use the default values.
12.6.4 Advanced Data settings
Overview
Whena data source is selected, the advancedbutton enables the advanced settings for a data source.
Advanced edit
VCO range
PLL Cpmp
Clamp position
Clamp width
0
0
16
16
Horizontal sync polarity
Determined by ADC
Active low
Active high
Input format
RGB
PR/Y/PB
HDTV-PR/Y/PB
Image12-10
video info
a
Hs Hs
b
Image12-11
Hs horizontal sync pulse
aactivelow
b active high
TheVCO range setting determines the frequency range of t he VCO (VoltageControlled Oscillator).
TheCpmp (C harge pump current) sets the low pass filter current.
BothVCO range & Cpmp are set by the image file, changing these settings is only indicated in for special purposes.
Thehorizontal sync polarity setting can be useful in case of a bad shaped edge, onecanchoose between the leading (active low)
or trailing (active high) edge.
Theinput format settings are used to "tell more" about the signals connected on the BNC’s, it completes the information in the source
selection menu.
-RGB is selected by defau lta nd means that an RGB signal is connected to the BNC’s
- PR/Y/PB must be selected whenever:
108 R5976815 RLMG5I PERFORMER 02/06/2006