Cobalt Digital Inc 5821-D Owner's Manual

Down converter aspect ratio converter

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Model 5821-D
Down Converter
Aspect Ratio Converter
Configured for Single Slot 5-BNC
(10-BNC compatible)
Owner's Manual

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Table of Contents
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Summary of Contents for Cobalt Digital Inc 5821-D

  • Page 1 Model 5821-D Down Converter Aspect Ratio Converter Configured for Single Slot 5-BNC (10-BNC compatible) Owner’s Manual...
  • Page 2: Table Of Contents

    Block Diagram ........................4 Signal Flow ......................... 4 Conversion Capabilities ...................... 5 Configuring a 5821-D ......................6 Switch 9 – Aspect and Overlay Configuration ..............7 Switch 3 – Overlay and Analog Configuration..............7 Switch 5 and 6 – Rotary Switch Settings (Internal Settings)........... 8 Switch 10, 11 and 12 –...
  • Page 3: Overview

    The 5821-D is a high quality 10-bit, HD down-converter with SD pass-through and individual ARC controls for HD and SD inputs. The 5821-D bridges SMPTE 292 high definition (HD) and 259M-C standard definition (SD) signal formats; allowing high density and low power conversion of HD signals.
  • Page 4: I/O Connections

    10-BNC Slot Block Diagram The 5821-D has a very flexible signal flow path and feature set that combines several products into one compact package. To understand the capabilities of the 5821-D, this section reviews the basic structure of the 5821-D.
  • Page 5: Conversion Capabilities

    SD active line rates are PAL (575) and NTSC (486). The 5821-D cannot accept native 720 p23.98 or sF23.98, however it can convert those signals if they are delivered inside a p59.94 transportation wrapper (as typically done with this format) and processed as p59.94.
  • Page 6: Configuring A 5821-D

    Configuring a 5821-D The 5821-D is configured via an eight position card edge switch for main functions, a ten position surface mount board switch for extended functions and two card edge rotary switches with an up down switch to access advanced controls. The configuration is broken down into four areas: HD/SD conversion mode, Aspect ratio rules (ARC), output configuration and overlay reticules.
  • Page 7: Switch 9 - Aspect And Overlay Configuration

    Switch 9 – Aspect and Overlay Configuration Switch S9, located on the card edge, controls the separate aspect ratio rules for HD and SD inputs as well as selecting the reticule overlays. See chart on previous page. The first two positions S9-1&2 set the ARC for SD inputs and the next two switches S9-3&4 select the ARC setting for HD inputs.
  • Page 8: Switch 5 And 6 - Rotary Switch Settings (Internal Settings)

    60: User Reticule Mode Vert bars size H 99: Save current values 61: User Reticule Mode Vert bars thickness Make certain that the rotary switches are restored to 0, 0 before putting the 5821-D back into service.  Page 8 of 13 V0.8...
  • Page 9: Switch 10, 11 And 12 - Reference Configuration

    S12 Reference Termination - 75 ohm - move S12 down S12 Reference Termination – none – move S12 up Ref. Confg. R441 Composite 10's Gain 5821-D Switch and Potentiometer Locations BNC #5 External Ref. Reserved I/O Input Frame Ref. Ref. Input to Note: Ref. Must...
  • Page 10: 5821-D Delay Characteristics

    5821-D Delay Characteristics The processing delay varies with the type of conversion being performed. The charts below list the electrical length or processing time for the HD/SD-SDI and Analog HD/SD outputs. Select the input rate on the left and the output rate and type on the top. The intersecting box contains the conversion time information.
  • Page 11: Glossary

    Glossary Aspect ratio: Performing an aspect change on HD or SD raster, for example converting the image from 16x9 to 4x3 with letter box (0.75V) or non-letter box by expanding H by 1.333. Downconvert: Taking HD and downconverting it to SD or XGA. Format convert: Taking HD from one resolution and crossing converting it over to another HD standard, for example (1080 to 720) or (720 to 1080).
  • Page 12 This page left intentionally blank.  Page 12 of 13 V0.8 Cobalt Digital 2005...
  • Page 13: Specifications

    This product is not authorized for use in life support systems. Product liability is limited only to the replacement of this unit. Cobalt Digital Inc. does not assume any liability for loss of use due to failure of this component.

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