Analog Devices Blackfin Manuale utente
Copyright Information
©2007Analog Devices, Inc., ALL RIGHTS RESERVED. This document
may not be reproduced in any form without prior, express written consent
from Analog Devices, Inc.
Printed in the USA.
Limited Warranty
The Blackfin Audio EZ-Extender is warranted against defects in materials
and workmanship for a period of one year from the date of purchase from
Analog Devices or from an authorized dealer.
Disclaimer
Analog Devices, Inc. reserves the right to change this product without
prior notice. Information furnished by Analog Devices is believed to be
accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use; nor for any infringement of patents or other rights of
third parties which may result from its use. No license is granted by impli-
cation or otherwise under the patent rights of Analog Devices, Inc.
Trademark and Service Mark Notice
The Analog Devices logo, Blackfin, VisualDSP++, EZ-KIT Lite, and
EZ-Extender are registered trademarks of Analog Devices, Inc.
All other brand and product names are trademarks or service marks of
their respective owners.
Regulatory Compliance
The Blackfin Audio EZ-Extender has been certified to comply with the
essential requirements of the European EMC directive 89/336/EEC
(inclusive 93/68/EEC) and, therefore, carries the “CE” mark.
The Blackfin Audio EZ-Extender had been appended to Analog Devices
Development Tools Technical Construction File referenced
“DSPTOOLS1” dated December 21, 1997 and was awarded CE Certifi-
cation by an appointed European Competent Body and is on file.
The EZ-KIT Lite evaluation system contains ESD
(electrostatic discharge) sensitive devices. Electro-
static charges readily accumulate on the human
body and equipment and can discharge without
detection. Permanent damage may occur on devices
subjected to high-energy discharges. Proper ESD
precautions are recommended to avoid performance
degradation or loss of functionality. Store unused
EZ-KIT Lite boards in the protective shipping
package.
Blackfin Audio EZ-Extender Manual v
CONTENTS
PREFACE
Product Overview .......................................................................... vii
Purpose of This Manual ................................................................ viii
Intended Audience .......................................................................... ix
Manual Contents ............................................................................ ix
What’s New in This Manual ............................................................. x
Technical or Customer Support ........................................................ x
Supported Products ......................................................................... xi
Product Information ....................................................................... xi
Related Documents ................................................................... xi
Notation Conventions ................................................................... xiii
AUDIO EZ-EXTENDER INTERFACES
Audio EZ-Extender Setup ............................................................. 1-1
Analog Audio Interface .................................................................. 1-2
Digital Audio Interface .................................................................. 1-4
AUDIO EZ-EXTENDER HARDWARE REFERENCE
System Architecture ...................................................................... 2-2
Configuration Jumpers and Switches ............................................. 2-4
CONTENTS
vi Blackfin Audio EZ-Extender Manual
ADSP-BF537 EZ-KIT Lite Select Jumper (JP1.1/2) ................. 2-5
EZ-KIT Lite SPORT0 Enable Jumper (JP1.3/4) ...................... 2-6
EZ-KIT Lite SPORT1 Enable Jumper (JP1.5/6) ...................... 2-6
SPORT Select Jumper (JP1.7/8) .............................................. 2-6
AD1938 MCLK Source Jumper (JP2) ...................................... 2-6
SPDIF Loopback Jumper (JP4) ............................................... 2-7
Analog Input Gain Switches (SW1–4) ..................................... 2-7
AUDIO EZ-EXTENDER BILL OF MATERIALS
AUDIO EZ-EXTENDER SCHEMATIC
Title Page ..................................................................................... B-1
Expansion Interface (1 and 2) ....................................................... B-2
Expansion Interface (3) ................................................................. B-3
Configuration ............................................................................... B-4
ADAV801–Digital Audio .............................................................. B-5
AD1938–Analog Audio ................................................................ B-6
Analog In 1 .................................................................................. B-7
Analog In 2 .................................................................................. B-8
Analog In 3 .................................................................................. B-9
Analog In 4 ................................................................................ B-10
Analog Out 1 ............................................................................. B-11
Analog Out 2 ............................................................................. B-12
INDEX
Blackfin Audio EZ-Extender Manual vii
PREFACE
Thank you for purchasing the Blackfin®Audio EZ-Extender®, Analog
Devices, Inc. (ADI) daughter board to the EZ-KIT Lite®evaluation sys-
tem for the ADSP-BF533, ADSP-BF537, and ADSP-BF561 Blackfin
processors.
The Blackfin processors are embedded processors that support a Media
Instruction Set Computing (MISC) architecture. This architecture is the
natural merging of RISC, media functions, and digital signal processing
characteristics towards delivering signal processing performance in a
microprocessor-like environment.
The EZ-KIT Lite and Audio EZ-Extender are designed to be used in con-
junction with the VisualDSP++®development environment.
VisualDSP++ offers a powerful programming tool with new flexibility that
significantly decreases the time required to port software code to a proces-
sor, reducing time-to-market.
To learn more about Analog Devices development software, go to
http://www.analog.com/processors/tools/.
Product Overview
The Blackfin Audio EZ-Extender is a separately sold daughter board that
plugs onto the expansion interface of the ADSP-BF533, ADSP-BF537, or
ADSP-BF561 EZ-KIT Lite evaluation system. The daughter board aids
the design and prototyping phases of ADSP-BF533, ADSP-BF537, and
ADSP-BF561 processor targeted applications.
Purpose of This Manual
viii Blackfin Audio EZ-Extender Manual
The board extends the capabilities of the evaluation system by providing a
connection to thee audio codecs, including two analog audio codecs and
one dual analog/digital audio codec with an interface to digital Sony Phil-
ips Digital Interface (SPDIF) audio.
The following is a list of the Blackfin Audio EZ-Extender interfaces.
• Analog audio interface
DAD1938 – Analog Devices 192 kHz audio codecs
DFour stereo analog audio inputs via RCA jacks
DEight stereo analog audio outputs via RCA jacks
• Digital audio interface
One ADAV801 – Analog Devices SPDIF transceiver with sample
rate converter
DOne SPDIF input via a RCA jack
DOne SPDIF output via a RCA jack
• Expansion interface on both sides of the board for stacking other
EZ-Extender boards
Before using any of the interfaces, follow the setup procedure in “Audio
EZ-Extender Setup” on page 1-1.
Example programs are available to demonstrate the capabilities of the
Blackfin Audio EZ-Extender board.
Purpose of This Manual
The Blackfin Audio EZ-Extender Manual describes the operation and con-
figuration of the components on the extension board. A schematic and a
bill of materials are provided as a reference for future Blackfin processor
board designs.
Blackfin Audio EZ-Extender Manual ix
Preface
Intended Audience
This manual is a user’s guide and reference to the Blackfin Audio
EZ-Extender. Programmers who are familiar with the Analog Devices
Blackfin processor architecture, operation, and development tools are the
primary audience for this manual.
Programmers who are unfamiliar with VisualDSP++ or EZ-KIT Lite eval-
uation software should refer to the ADSP-BF533, ADSP-BF537, or
ADSP-BF561 Evaluation System Manual, VisualDSP++ online Help, and
user’s or getting started guides. For the locations of these documents, refer
to “Related Documents”.
Manual Contents
The manual consists of:
• Chapter 1, “Audio EZ-Extender Interfaces” on page 1-1
Provides basic board information.
• Chapter 2, “Audio EZ-Extender Hardware Reference” on page 2-1
Provides information on the hardware aspects of the board.
• Appendix A, “Audio EZ-Extender Bill Of Materials” on page A-1
Provides a list of components used to manufacture the
EZ-Extender board.
• Appendix B, “Audio EZ-Extender Schematic” on page B-1
Provides the resources to allow EZ-KIT Lite board-level debugging
or to use as a reference design.
LAppendix B now is part of the online Help. The lastest schematics
for the product can be found on the Analog Devices Web site,
www.analog.com/processors.
What’s New in This Manual
x Blackfin Audio EZ-Extender Manual
What’s New in This Manual
This Blackfin Audio EZ-Extender Manual has been updated for the latest
revision of VisualDSP++.
Technical or Customer Support
You can reach Analog Devices, Inc. Customer Support in the following
ways:
• Visit the Embedded Processing and DSP products Web site at
http://www.analog.com/processors/technicalSupport
• E-mail tools questions to
processor.tools.support@analog.com
• E-mail processor questions to
• Phone questions to 1-800-ANALOGD
• Contact your Analog Devices, Inc. local sales office or authorized
distributor
• Send questions by mail to:
Analog Devices, Inc.
One Technology Way
P.O. Box 9106
Norwood, MA 02062-9106
USA
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