Sierra Video ADC-142 User Manual

Sierra Video Systems

ADC-142

Analog to Digital Converter with Audio

Embedding and Frame Sync

ADC-142-OM Version: 2.1

Owner’s Manual

ADC-142 •••• HD/SD Analog to Digital Converter with Audio Embedding and Frame Sync Owner’s Manual

• Sierra Part Number: ADC-142-OM

• Document Version: 2.1

• Printed in the United States.

• Last Author: MB

• Printing Date: 11/29/2010 9:34:00 AM

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

Contents of this publication may not be reproduced in any form without the written permission of 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 Sierra Video Systems Inc assumes no responsibility or liability for errors or inaccuracies that may appear in this manual.

Trademarks

• is a registered trademark of Ross Video Limited.

• is a registered trademark of Sierra Video 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.

Page 2 of 29 ADC-142 Owner’s Manual •••• (V 2.1)

Important Regulatory and Safety Notices

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

Warning

Caution

Notice

ESD

Susceptibility

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

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.

Important Safety Instructions

Caution

Warning

ADC-142 Owner’s Manual •••• (V 2.1) Page 3 of 29

This product is intended to be a component product of the openGearTM frame. Refer to the openGearTM frame Owner’s Manual for important safety instructions regarding the proper installation and safe operation of the frame as well as it’s component products.

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.

Environmental Information

The equipment that you purchased required the extraction and use of natural resources for its production. It may contain hazardous 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.

Page 4 of 29 ADC-142 Owner’s Manual •••• (V 2.1)

Contents

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Introduction 6

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

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

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

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

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

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

Analog Audio .............................................................................................................. 8

Discrete AES Audio Input ........................................................................................... 8

Discrete AES Audio Output ........................................................................................ 9

AES Audio Input Advanced Features ........................................................................................ 9

AES Sample Rate Converter Bypass ........................................................................... 9

Zero-Delay Audio Embedding ..................................................................................... 9

Low latency AES Passthrough ..................................................................................... 9

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

Installation and Setup 10

In This Chapter ........................................................................................................................ 10

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

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

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

Rear Modules Available for ADC-142 .................................................................................... 12

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

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

Card Status ................................................................................................................ 14

Menu Navigation ....................................................................................................... 14

Menu Structure ........................................................................................................................ 14

Factory Default Settings ............................................................................................ 18

Remote Control 19

In This Chapter ........................................................................................................................ 19

DashBoard Control System Software ...................................................................................... 19

Technical Specifications 22

Service Information 24

In This Chapter ........................................................................................................................ 24

Troubleshooting Checklist ....................................................................................................... 24

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

Ordering Information 27

ADC-142 and Related Products ............................................................................................... 27

Contact Sierra Video Systems .................................................................................................. 29

Visit us at the Sierra Video Systems website. .......................................................................... 29

ADC-142 Owner’s Manual •••• (V 2.1) Page 5 of 29

Introduction

In This Chapter

This chapter includes the following sections:

• A Word of Thanks

• Overview

• Functional Block Diagram

• Supported Audio and Video Formats

• Documentation Terms

A Word of Thanks

Congratulations on choosing the openGearTM ADC-142 Analog to Digital Converter with Audio Embedding and Frame Sync. The ADC-142 is part of a full line of modular conversion gear for

broadcast TV environments. The Sierra Video Systems openGearTM line includes video decoders and encoders, audio embedders and de-embedders, distribution amplifiers, format converters, and much more. Sierra openGearTM modular conversion gear will meet your signal conversion needs now and well into the future.

Should you have questions pertaining to the installation or operation of your ADC-142, 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 openGearTM card.

Overview

The ADC-142 is a high quality format converter that also includes a full 16 channel audio embedder, a 12-bit analog to digital video converter, a 8 channel 24-bit balanced analog to digital audio converter, and a full video frame synchronizer.

The ADC-142 has a full featured, high quality, 12-bit analog to 10-bit serial digital converter. The dual rate HD/SD analog video input can accept all common analog video formats and will autodetect between HD and SD.

The embedder functions like an audio router internal to the card. On the input side of the router are the up to 16 channels (8 pairs) of discrete AES input, up to 8 channels of differential analog audio input. On the output side are the up to 16 channels of embedded AES audio, and the up to 16 channels (8 pairs) of discrete AES output. The router acts as a full audio cross point: each of the 32 output channels (16 embedded AES, 16 discrete AES) can receive signal from any one of the 29 (16 discrete AES, 8 Analog, 4 tone generator, 1 silence) input channels. Each output also allows gain adjustment and optional polarity inversion.

Page 6 of 29 ADC-142 Owner’s Manual •••• (V 2.1)

Audio rates are always 48kHz nominally but discrete AES inputs pass through sample rate converters to align them with the output timing. The sample rate converters can be disabled if necessary. Output AES is always precisely locked in time with the output video. Analog audio is differential input and sampled at 48 kHz with 0 dbFS digital equivalent to a +24 dBu analog.

There are several advanced features available for the AES inputs. These include input sample rate converter bypass, low-latency embedding of AES inputs, and AES input to output pass through. These are covered in more detail in the section: AES Audio Input Advanced Features.

The product also provides full color processing control of the output video, with separate controls for Luma Gain, Luma Lift, Chroma Saturation and Color Phase.

All card configuration is done with a simple front panel menu. There is a four character text display to view and control parameters, and a toggle switch and two buttons to navigate the menu. Card configuration can also be done over Dashboard remote control software.

The input and outputs of the ADC-142 are the following:

Input:



One 3-BNC dual-rate HD/SD analog video input



4 dedicated AES input connections (AES input 5-6)



8 differential analog audio inputs

Switchable Input/Outputs:



4 AES connections, switchable between input and output (AES input/output 1-4)

Outputs:



Two dual-rate HD/SD-SDI video outputs



8 dedicated AES output connections. (AES output 1-8)

ADC-142 Owner’s Manual •••• (V 2.1) Page 7 of 29

Functional Block Diagram

ADC

Polarity

The ADC-142 has a very flexible signal flow path and feature set that combines several products into one compact package. This section diagrams the basic signal flow of your ADC-142 product.

Video Video

Gain, Lift, Saturation, Phase

Audio Control:

Analog

Video Input

8 channels

8 pairs

16 channels

From AES or

Embedded Audio

Analog

Video A/D

Diff. Analog

Audio A/D

AES

Decode

and SRC

Dolby E

Decode

and SRC

Video Proc:

Routing

Gain

Frame

Sync

FS Tracking Delay +

User

Offset

Audio

Embed

AES

Encode

Serializer

and Cable

Driver

8 pairs

16 channels

-142 Block Diagram

Figure 1. Simplified Block Diagram of ADC-142 Functions

Supported Audio and Video Formats

Input and Output Video

The ADC-142 supports the complete range of modern SMPTE standard SD and HD video formats.

Raster structure Frame Rate

1080psF 23.98, 24

1080p 23.98, 24

1080i1 25, 29.97, 30 720p 25, 29.97, 30, 50, 59.94, 60 486i1 29.97 575i1 25

Notes:

1. All rates displayed as frame rates, interlaced (“i”) field rates are two times the number shown.

Analog Audio

The ADC-142 supports 8 channels differential analog audio. The analog audio is converted in such a way as to make +24 dBu (analog) equivalent to 0 dBFS (digital).

Discrete AES Audio Input

The ADC-142 can accept 16 channels (8 pairs) of discrete AES audio on 75 ohm BNC connections. The AES must have a nominal rate of approximately 48 kHz. Sample rate conversion is employed to account for minor clock rate differences in the input AES stream and the input video stream. However, the card does not support AES input at 32 kHz, 44.1 kHz, 96 kHz or 192 kHz rates.

Page 8 of 29 ADC-142 Owner’s Manual •••• (V 2.1)

Discrete AES Audio Output

The ADC-142 can emit 16 channels (8 pairs) of discrete AES audio on 75 ohm BNC connections. The AES clock rate will be precisely locked to the output video rate.

AES Audio Input Advanced Features

AES Sample Rate Converter Bypass

The card’s AES inputs have built in sample rate converters that are enabled by default. This allows the card to interface with asynchronous AES sources (sources who’s AES timing does not match the video reference timing.). They can be bypassed with a control in Dashboard or the front panel. This is a necessity when trying to embed non-PCM AES audio such a Dolby E or Dolby Digital audio streams. This control is off by default.

Zero-Delay Audio Embedding

Sometimes it is desirable to embed AES with minimum latency. For example, if you want to embed Dolby E audio into video with no latency, and delay the video by one frame to account for Dolby E encoding delay. By turning this control on for a given AES pair, the pair will be directly embedded into it’s corresponding group, bypassing the normal frame sync audio delay. (AES Pair 1 into Embedded Group 1, ch1 & ch2, AES pair 2 into Embedded Group 2, ch3 & ch4). This control overrides the standard audio routing system: if AES Pair 1 is selected, then the controls to route into Embedded group 1, ch1 & ch2 don’t apply. There is no gain or polarity control available when this option is selected. This control is off by default

Low latency AES Passthrough

This control is similar to zero delay audio embedding. If selected for input pair X it causes AES output pair X to act as a bit for bit copy of AES input pair X. This over rides the normal audio routing and delay. No gain and polarity adjustments are possible. This control is off by default.

Documentation Terms

The following terms are used throughout this guide:

• “Frame” refers to the 8310 frame that houses the ADC-142 card.

• “Operator” and “User” both refer to the person who uses the ADC-142.

• “Board” and “Card” all refer to the ADC-142 card itself, including all components

and switches.

• “System” and “Video system” refers to the mix of interconnected production and

terminal equipment in which the ADC-142 operates.

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