Cobalt Digital COMPASS 9822 Downconverter - Manual (Page 9)

9822-OM (V4.1) 9822 PRODUCT MANUAL 1-5
Introduction
9822 Functional Description
9822 Functional Description
Figure 1-1 shows a functional block diagram of the 9822. The 9822 format
downconverter also includes a full 16-channel audio processor/router and a
full video frame synchronizer. The 9822 also handles AFD code detection/
insertion and processing, timecode support, closed captioning support, and
transfer of Dolby
® metadata. Aspect ratio can be corrected to provide proper
output aspect.
Note: Some of the functions described below are available only when using the
DashBoard™, or Cobalt
® OGCP-9000 or OGCP-9000/CC Control Panels
user interfaces. Refer to User Control Interface (p. 1-14) for user interface
descriptions.
9822 Input/Output Formats
The 9822 provides the following inputs and outputs:
• Inputs:
•
HD/SD SDI IN – dual-rate HD/SD-SDI input
• Outputs:
•
SDI OUT – four SD-SDI buffered video outputs
•
RCK OUT – four SD-SDI reclocked buffered video outputs
Video Processor Description
The 9822 features a scaler that provides down-conversion to SD interlaced
formats, and also provides user-adjustable aspect ratio control and zoom
control. The 9822 video subsystem also provides the functions described
below.
Video Processor
The 9822 provides full color processing control (luma gain and lift, chroma
saturation, and color phase) of the output video.
Frame Sync Function
This function provides for frame sync control using either one of two external
EXT REF IN (1,2) reference signals distributed with the card frame, or the input
video as a frame sync reference.
This function allows horizontal and/or vertical offset to be added between the
output video and the frame sync reference.