HDC-8223A(-S) User Manual (Iss. 03)
Introduction • 1–3
Video Subsystem Overview
The HDC-8223A(-S) features a downconverting scaler, video proc, and user-adjustable aspect
ratio control and zoom control. The HDC-8223A(-S) video subsystem also provides the functions
described below.
Rear Modules
The HDC-8223A(-S) physically interfaces to system video connections at the rear of its frame
using a rear module.
All inputs and outputs shown in
enter and exit the card via the card edge backplane
connector. The rear module breaks out the HDC-8223A(-S) card edge connections to BNC and
other connections that interface with other components and systems in the signal chain.
For More Information on...
• the required rear modules, refer to the section “
Input Select
The HDC-8223A(-S) can select from either of two 3G/HD/SD-SDI inputs using either manual
control, or settings that provide failover to the alternate secondary input. (Failover is simple
signal presence check only.)
Video Processor
The HDC-8223A(-S) provides full color processing control (luma gain and lift, chroma
saturation, and color phase) of the output video.
Scaler Function
The scaler function provides down-conversion to SD from multiple standard SD, and 3G/HD
video formats and multiple frame rates, with auto-format detect/down-conversion of SMPTE
424M/292M/259M formats. Color framing is preserved on CVBS outputs for all conversions.
The scaler function also provides aspect ratio conversion that provides a choice from several
standard aspect ratios. User-defined settings allow custom user-defined H and V aspect ratio
control, as well as pan/tilt control. Reticule insertion provides safe action area marking as well as
other reticule functions and patterns.
Frame Sync (HDC-8223A-S Only)
This option provides for frame sync control using either one of two external
REF IN 1
,
2
reference signals distributed with the openGear frame, or the input video as a frame sync
reference.
This option also allows horizontal and/or vertical offset to be added between the output video and
the frame sync reference.
