Cobalt Digital OBSIDIAN 3G 9501-DCDA-3G Downconverter - Manual (Page 11)

9501DCDA-OM (V1.3) 9501-DCDA PRODUCT MANUAL 1-7
Introduction
9501-DCDA Functional Description
Video Processor Description
The 9501-DCDA features a downconverting scaler, video proc, and
user-adjustable aspect ratio control and zoom control. The 9501-DCDA video
subsystem also provides the functions described below.
Input Select
The 9501-DCDA 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 9501-DCDA 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.
Timecode Processor
(See Figure 1-2.) This function provides for extraction of timecode data from
the input video, and in turn re-insertion of timecode data into the output SDI
or analog composite. In this manner, timecode data can be preserved, even
after format conversion. The function can monitor the SDI video input of the
card for supported timecode formats and convert the timecode to either or
both ATC_VITC or VITC waveform (with selectable odd/even field line
number control). ATC_VITC and VITC waveform outputs are available on
SD-SDI outputs; VITC waveform only is available on CVBS outputs.
Option +LTC allows bidirectional transfer and conversion
between VANC formats over SDI and audio LTC. Audio LTC can be received
over an embedded channel or sent over a selected balanced analog audio
output or embedded output channel.