Sierra Video DAC-104 User Manual

Sierra Video Systems

DAC-104

Standard Definition

Digital to Analog Converter

10-bit SDI to

Analog Composite, Y/C,

RGB and Component

DAC-104-OM Version: 1.1

Owner’s Manual

DAC-104 • Standard Definition D/A 10-bit SDI to Analog Composite, Y/C, RGB and Component Owner’s Manual

• Sierra Video Systems Part Number: DAC-104-OM

• Document Version: 1.1

• Printed in the United States.

• Last Author: KGM

• Printing Date: 11/23/2010 9:16:00 AM

The information contained in this Owner’s Manual is subject to change without notice or obligation.

Sierra Video Systems Reproduction or reverse engineering of copyrighted software is prohibited.

Notice

The material in this manual is furnished for informational use only. It is subject to change without notice and should not be construed as a commitment by Sierra Video Systems assumes no responsibility or liability for errors or inaccuracies that may appear in this manual.

Trademarks

• is a registered trademark of Ross Video Limited.

•

Systems

• All other product names and any registered and unregistered trademarks mentioned in this manual are used for identification purposes only and remain the exclusive property of their respective owners.

is a registered trademark of Sierra Video

DAC-104 Owner’s Manual • (V 1.1) Page 2 of 22

Important Regulatory and Safety Notices

equipment.

Warning

Caution

Notice

Susceptibility

products.

Before using this product and any associated equipment, refer to the “Important Safety Instructions” listed below so as to avoid personnel injury and to prevent product damage.

Products may require specific equipment, and /or installation procedures be carried out to satisfy certain regulatory compliance requirements. Notices have been included in this publication to call attention to these specific requirements.

Symbol Meanings

This symbol on the equipment refers you to important operating and maintenance (servicing) ins t ructions within the Product Manual Documentation. Failure to hee d this information may present a major risk of damage or injury to persons or

The symbol with the word “Warning” within the equipment manual indicates a potentially hazardous situation, which if not avoided, could result in death or serious injury.

The symbol with the word “Caution” within the equipment manual indicates a potentially hazardous situation, which if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.

The symbol with the word “Notice” within the equipment manual indicates a situation, which if not avoided, may result in major or minor equipment damage or a situation which could place the equipment in a non-compliant operating state.

This symbol is used to alert the user that an electrical or electronic device or assembly is susceptible to damage from an ESD event.

ESD

Important Safety Instructions

Caution

Warning

This product is intended to be a component product of the openGearTM frame. Refer to the openGear the proper installation and safe operation of the frame as well as it’s component

Certain parts of this equipment namely the power supply area still present a safety hazard, with the power switch in the OFF position. To avoid electrical shock, disconnect all A/C power cords from the chassis' rear appliance connectors before servicing this area.

Service barriers within this product are intended to protect the operator and service personnel from hazardous voltages. For continued safety, replace all barriers after any servicing.

This product contains safety critical parts, which if incorrectly replaced may present a risk of fire or electrical shock. Components contained within the product’s power supplies and power supply area, are not intended to be customer serviced and should be returned to the factory for repair.

To reduce the risk of fire, replacement fuses must be the same type and rating. Only use attachments/accessories specified by the manufacturer.

frame Owner’s Manual for important safety instructions regarding

DAC-104 Owner’s Manual • (V 1.1) Page 3 of 22

Environmental Information

The equipment that you purchased required the extraction and use of natural r esources for its production. It may contain ha z ardous substances that could impact health and the environment.

To avoid the potential release of those substances into the environment and to diminish the need for the extraction of natural resources, Sierra Video Systems encourages you to use the appropriate take-back systems. These systems will reuse or recycle most of the materials from your end-of-life equipment in an environmentally friendly and health conscious manner.

The crossed-out wheeled bin symbol invites you to use these systems.

If you need more information on the collection, reuse, and recycling systems, please contact your local or regional waste administration.

You can also contact Sierra Video Systems for more information on the environmental performances of our products.

DAC-104 Owner’s Manual • (V 1.1) Page 4 of 22

Contents

Introduction 6

In This Chapter .......................................................................................................................... 6

A Word of Thanks ..................................................................................................................... 6

Overview .................................................................................................................................... 6

Features ...................................................................................................................................... 7

Software Version ....................................................................................................................... 7

Functional Block Diagram ......................................................................................................... 8

Supported Audio and Video Formats ......................................................................................... 8

Documentation Terms ................................................................................................................ 9

Installation and Setup 10

In This Chapte r ........................................................................................................................ 10

Static Discharge ....................................................................................................................... 10

Unpacking ................................................................................................................................ 10

Rear Module Installation (Optional) ........................................................................................ 11

Rear Module Available for DAC-104 ...................................................................................... 12

Board Installation ..................................................................................................................... 13

Card Control and Status ........................................................................................................... 14

Color Framing ............................................................................................................. 7

Input and Output Video ............................................................................................... 8

Card Control Switches ............................................................................................... 14

Card Status LEDs ...................................................................................................... 15

Reference Configuration and Termination ................................................................ 15

Factory Default Settings ............................................................................................ 15

Remote Control 16

In This Chapter ........................................................................................................................ 16

DashBoard Control System Software ...................................................................................... 16

Technical Specifications 17

Service Information 18

In This Chapter ........................................................................................................................ 18

Trouble s hooting Checklist ....................................................................................................... 18

Warranty and Repair Policy ...................................................... Error! Bookmark not defined.

Ordering Information 19

DAC-104 and Related Products ............................................................................................... 21

Notes: ........................................................................................................................ 22

Contact Sierra Video Systems .................................................................................................. 23

Visit us at the Sierra Video Systems website. .......................................................................... 23

DAC-104 Owner’s Manual • (V 1.1) Page 5 of 22

Introduction

In This Chapter

This chapter includes the following sections:

• A Word of Thanks

• Overview

• Functional Block Diagram

• Supported Video Formats

• Documentation Terms

A Word of Thanks

Congratulations on choosing the openGearTM DAC-104 Standard Definition D / A 10-bit SDI to Analog Composite, Y/C, RGB and Component. The DAC-104 is part of a full line of modular

conversion gear for broadcast TV environments. The Sierra Video Systems openGear video decoders and encoders, audio embedders and de-embedders, distribution amplifiers, format converters, and much more. Sierra openGear conversion needs now and well into the future.

Should you have questions pertaining to the installation or operation of your DAC-104, please contact us at the numbers listed on the back cover of this manual. We are happy to help with any questions regarding this or any other openGe ar

Overview

The DAC-104 is a high quality standard definition digital to analog converter for c onverting 525/625 4:2:2 SDI signals to analog Composite, Y/C and Component signals (YPbPr or RGB). The DAC-104 auto-detects the line input standard and outputs the co rresponding NT S C or PAL standard. The user can configure the default PAL outputs to be PAL-B/D/G/H/I, PAL N or PAL 60 and NSTC M or N. Pedestal selection can be enabled or disabled for NTSC operation.

The DAC-104 can be externally configured to three different analog o utp ut co nfigurations: all Composite, dual Composite with Y/C or Composite with Component. The DAC-104 supports four different Component output modes: BetaCam™, MII™, SMPTE/N10 and RGB. The encoding process is 10-bit with sample up-conversion from 4:2:2 to 8:8:8 (2x output mode) or 16:16:16 (4x output mode). Full user digital processing (proc.) co ntrols are available to the end user for adjusting

card.

line includes

modular conversion gear will meet your signal

DAC-104 Owner’s Manual • (V 1.1) Page 6 of 32

Features

black level, Y Gain, Saturation a nd Hue. Advanced controls include VBI Blanking, line by line VBI Pedestal control, extended filtering, DNR and Gamma configuration. All adjustments can be saved to non-volatile memory or Factory defaults can be restored. A De-jitter VCXO is included to reduce input jitter from high frequencies down to 2Hz.

The DAC-104 has four reclocked digital output copie s of the input SDI signal or three when the Genlock input i s us ed, and one BNC reserved for Bla ck Burst input. The us er must adjust the SDI source’s H-Phase for horizontal sync alignment. A full 360 degrees of SCH phase is user adjustable on the DAC-104.

The input and outputs of the DAC-104 are the following:

Inputs:

 One 10-bit SD-SDI vid eo input  One black burst reference input for color framing purposes

Outputs:

 Four reclocked SD-SDI video outputs  Four analog SD video outputs

Color Framing

Although an SD-SDI signal carries more information than a composite signal, it does not properly encode the SCH (Sub-Carrier to Horizontal) phase of the original composite signal. SCH phase is a measure of the relationship of the start of the color burst to the start of the horizontal sync. In NTSC each field has an SCH phase of 90° more than the previous field, thus the SCH sequence repeats every four fields. Since each SDI field encodes the field type (odd or even) but not the SCH phase, a given video encoder cannot recreate the SCH phase without a reference signal. This creates problems when trying to align the signals to the inputs of some sort of switching device that relies on the color phase being unified ac ross channels.

The DAC-104 gets around this problem by accepting reference on either of the two frame inputs, or on a dedicated BNC on the rear IO module. When reference is detected, the card will automatically ensure that the SCH phase of the output matches that of the reference signal. The reference must be synchronous with the input vi deo for this to work, d ue to the nature of the comparison.

There is a control to adjust the offset between output SCH phase and detected reference SCH phase. It is not needed in most applications.

Software Version

 This manual is written for software release number 1.0.  To view the current software release number o f your DAC-104 check the card info menu in

Dashboard.

 To upgrade your DAC-104 software, go to the download page at www.sierravideo.com to

download the latest release, and upload the file through Dashboard™ (see Dashboard™ user manual, 3-5).

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