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1: Introduction
Functional summary
Signal Sources
The AVC8000nano is designed to simultaneously capture and display up
to 8 separate and unrelated video sources. Each video frame grabber
channel includes a digital NTSC/PAL video decoder.
Video Digitization
Composite NTSC or PAL video is input to the AVC8000nano through the
U.FL connectors CX1 to CX8. The video is AC-coupled and fed to the on-
board decoders of the individual frame grabbers. The video decoders
automatically detect whether the incoming video signal is NTSC or PAL
and generates the correct timing output signals. Each video channel is
first decoded to chrominance and luminance signals and then digitized
by high speed analog-to-digital (A2D) converters.
Real time Live Video Overlay
Digital video data streams are routed across the PCI Express bus to the
display buffer of the host CPU for overlaying on the VGA Screen. The
Overlay Windows can be scaled, cropped and positioned anywhere on
the VGA screen.
The digitized video streams from the AVC8000nano may also be directed
to a memory buffer within the host CPU for frame grabber applications
where the information may need further processing (such as software
encoding and recording).
Host Interface
The AVC8000nano uses a single x1 PCI Express link.
© 2013 Advanced Micro Peripherals
Document version A.00
AVC8000nano
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