Graham-Patten SoundPals ADC-24, Stereo A-to-D Converter User Manual

ADC-24 User Guide

Stereo A-to-D Converter

SoundPals™

Printing History

SoundPals™ ADC-24 A-to-D converter

Rev. N/C

March 2007

Printed in U.S.A.

Part Number 08-2045-00

The information contained in this guide is subject to change without notice or obligation.

Copyrights and Trademarks

© 2005 GRAHAM-PATTEN SYSTEMS, INC.

Contents of this publication may not be reproduced in any form without the written permission of Graham-Patten.
Reproduction or reverse engineering of copyrighted software is prohibited.

FCC Compliance

This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at your own expense.

Warranty Statement

Graham-Patten warrants that the equipment it manufactures is free from defects in workmanship and materials and
meets applicable published specifications. Equipment that has been operated within published ratings and has not
been subjected to abuse or modification, and which fails because of such defects, will be replaced or repaired at the
Company’s discretion if it is returned, freight prepaid, to Graham-Patten within seven years of receipt.

This warranty supersedes all other Warranties, express or implied. Graham-Patten is not liable for any
consequential damages.

Company Address

GRAHAM-PATTEN SYSTEMS, INC.
119 East McKnight Way, Unit A
Grass Valley, California 95949

Telephone: [phone]
Fax: [phone]
e-mail: [e-mail]
World Wide Web: www.gpsys.com

Graham-Patten is a division of

Table of Contents

Table of Contents ii

Introduction 1

What are SoundPals?..............................................................................................................1

Documentation Conventions.................................................................................................... 1

Signals and Values .................................................................................................................. 1

Warnings..................................................................................................................................1

Unpacking and Inspection .......................................................................................................2

Power Supply Note .................................................................................................................. 2

ADC-24 3

About the ADC-24.................................................................................................................... 3

ADC-24 Installation..................................................................................................................5

Connecting Power ............................................................................................................. 5

Connecting Inputs .............................................................................................................5

Connecting AES Reference .............................................................................................. 5

Connecting Outputs........................................................................................................... 5

ADC-24 Operation ................................................................................................................... 6

ADC-24 Interconnection ..........................................................................................................7

Basic - Inserting Analog Equipment .................................................................................. 7

Basic - Analog Input to Digital Mixer ................................................................................. 7

Advanced - Multiple Analog Inputs to Digital Mixer........................................................... 8

ADC-24 Internal Jumpers ........................................................................................................ 9

ADC-24 Troubleshooting ....................................................................................................... 11

ADC-24 Specifications...........................................................................................................12

Audio Specifications ........................................................................................................ 12

Environmental Specifications and Dimensions ............................................................... 12

Inside the Module ........................................................................................... 13

In This Section ....................................................................................................................... 13

Before You Begin................................................................................................................... 13

Opening the Module ..............................................................................................................13

Closing the Module ................................................................................................................ 13

External Power ................................................................................................ 14

About Power Supplies ...........................................................................................................14

CE Compliance...................................................................................................................... 14

Portable Power Sources ........................................................................................................ 14

Power Supply Specifications .................................................................................................14

Power Supply Sources ..........................................................................................................15

ii • Table of Contents ADC-24 User Guide

Introduction

What are SoundPals?

Each Graham-Patten SoundPals module is essentially a digital audio building block that can be
used independently, or interconnected to perform more advanced mixing and audio processing
functions.

SoundPals can be used in both standalone and system configurations:

• In a “standalone” configuration, each SoundPals module is designed to perform a specific
audio processing function such as ADAT-to-Analog conversion. In this way, each module
functions as a perfect low-cost adjunct to larger mixing consoles (such as the Graham­Patten D/ESAM series) — for single-purpose processing tasks.

• In a “system” configuration, SoundPals can be linked to form more comprehensive digital
audio tools. For field recording, studio applications, and workstation applications,
SoundPals can be used to seamlessly perform functions that would otherwise require
extensive peripheral gear. Best of all, SoundPals “systems” can be re-configured quickly
and easily — to suit your changing audio production requirements.

All SoundPals modules are extremely compact, rugged, and identical in size for ease of
installation, interconnection, and use. In addition, SoundPals support AES3id. This allows
longer, more robust AES signal distribution using standard coaxial cable. Error free distances of
1000 feet can be attained using inexpensive coaxial cables.

Documentation Conventions

The following documentation conventions are used in this guide:

• Buttons, knobs, connectors, and switches are indicated in bold-faced capital letters. For
example:

Adjust the left GAIN TRIM to …

• Primary sections are listed in bold text, with a line above:

Primary Section

• Secondary sections are listed in bold text, with no line:

Secondary Section

Signals and Values

Note the following important information regarding audio signal level:

• 0 dBu = 0.778 Vrms

• AES3 = Balanced output with 2 channels of digital audio (left and right)

• AES3id = Unbalanced output with 2 channels of digital audio (left and right)

Warnings

Please observe the following important warnings:

• Heed all warnings on the unit and in the instructions.

• Do not use this product in or near water.

• Route power cords and other cables so that they are not likely to be damaged.

Disconnect power before cleaning. Do not use liquid or aerosol cleaners; use only a
damp cloth.

ADC-24 User Guide

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