7500 OVERVIEW
The 7500 Video Processing Frame Synchronizer accepts a high definition video signal for
processing, synchronization, and timing.
The module’s main features are summarized below:
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HD SDI I/O
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Full-featured Frame Synchronizer
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Comprehensive Proc Amp Controls
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Target hue color processing controls
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Pixel by pixel Legalizer for Y, Cr, Cb or RGB requirements
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External genlock reference signal
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EDH detection and insertion
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Internal Test Signal Generator
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Automatic Standard Detection
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Memory Registers
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Accepts the 8415 Audio Processor submodule option for tracking audio delay, audio
mixing, and shuffling
The 7500 modules provides flexible synchronization with an infinitely adjustable timing
system that genlocks to your house reference. The module will genlock to either composite
video (PAL or NTSC) or to HD Tri-level Sync. It can also lock to the frame’s master
reference or a reference can be connected directly to the module’s external reference BNC.
The serial output timing can be set anywhere within a frame of the selected input
reference. Frame delay for an asynchronous input can be set for up to 3 frames.
Upon loss of signal, the 7500 provides freeze frame or black on the output until the signal
is recovered. In freeze mode, audio can be muted or passed as desired.
The HD input is carried at full, uncompressed bandwidth throughout the entire module
for uncompromised picture quality. EDH monitoring of the digital input is provided to
alert the user to an incoming problem. EDH detection, monitoring and insertion are
standard on the 7500. Flags are reported through the Avenue PC application.
As shown in the block diagram on the following page, the 7500 has a full-featured Proc
Amp with adjustment for every signal parameter. Video Proc controls include video and
chroma gain, NTSC style hue rotation, black balance and pedestal.
Part of the video processing includes a color processor that provides controls for targeting
a particular hue in a scene you wish to change. These controls allow you to target the
color, adjust the amount of sensitivity then adjust luminance, chrominance, pedestal and
hue for only the targeted color without affecting any other color in the scene.
A Legalizer can be enabled that will inhibit the picture on a pixel by pixel basis to be
within legal limits for RGB requirements. A Y, Cr, Cb legalizer provides clip controls for
adjusting the picture white and black clipping and chroma limiting as desired for your
application.
Model 7500 HD Video Proc Frame Sync
7500-2