Analog Devices EZ-Extender Audio EI3 User manual

a
Audio EI3 Extender Board Manual
an EZ-Extender®product
Revision 1.0, April 2012
Part Number
82-000300-01
Analog Devices, Inc.
One Technology Way
Norwood, Mass. 02062-9106
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Copyright Information
©2012 Analog 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.
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, CrossCore, EZ-Board, EZ-Extender,
EZ-KIT Lite, and SigmaDSP are registered trademarks of Analog Devices,
Inc.
EngineerZone is a trademark of Analog Devices, Inc.
All other brand and product names are trademarks or service marks of
their respective owners.
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Regulatory Compliance
The Audio EI3 Extender Board is designed to be used solely in a labora-
tory environment. The board is not intended for use as a consumer end
product or as a portion of a consumer end product. The board is an open
system design which does not include a shielded enclosure and therefore
may cause interference to other electrical devices in close proximity. This
board should not be used in or near any medical equipment or RF devices.
The Audio EI3 Extender Board is in the process of being certified to com-
ply with the essential requirements of the European EMC directive
89/336/EEC (inclusive 93/68/EEC) and, therefore, carries the “CE”
mark.
The extender board contains ESD (electrostatic discharge) sensitive devices.
Electrostatic 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 extender boards in the protective shipping package.
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Audio EI3 Extender Board Manual v
CONTENTS
PREFACE
Product Overview ........................................................................ vii
Purpose of This Manual .............................................................. viii
Intended Audience ...................................................................... viii
Manual Contents .......................................................................... ix
What’s New in This Manual ........................................................... x
Technical Support .......................................................................... x
Supported Products ....................................................................... xi
Product Information ..................................................................... xi
Analog Devices Web Site ......................................................... xi
EngineerZone ......................................................................... xii
Related Documents ..................................................................... xiii
Notation Conventions .................................................................. xiv
USING AUDIO EI3 EXTENDER BOARD
Package Contents .......................................................................... 1-2
Supported Operating Systems ........................................................ 1-2
System Requirements .................................................................... 1-3
Audio EI3 Extender Board Setup ................................................... 1-3
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Contents
vi Audio EI3 Extender Board Manual
Audio Interface ............................................................................. 1-4
Connectors ................................................................................... 1-4
Power LED (LED1) ...................................................................... 1-6
Power ........................................................................................... 1-6
AUDIO EI3 EXTENDER BOARD BILL OF MATERIALS
AUDIO EI3 EXTENDER BOARD SCHEMATIC
Title Page ..................................................................................... B-1
EI3 Conn, ADAU1761 ................................................................. B-2
Power, LED .................................................................................. B-3
INDEX
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Audio EI3 Extender Board Manual vii
PREFACE
Thank you for purchasing the Audio EI3 Extender Board, an
EZ-Extender®product for EZ-KIT Lite®/EZ-Board®evaluation systems.
The EZ-KIT Lite/EZ-Board and Audio EI3 Extender Board are designed
to be used in conjunction with the CrossCore®Embedded Studio devel-
opment environment. CrossCore Embedded Studio (CCES) offers a
powerful programming tool with new flexibility that significantly
decreases the time required to port software code to a processor, reducing
time-to-market.
To learn more about Analog Devices development software, go to
http://www.analog.com/processors/tools.
Product Overview
The Audio EI3 Extender Board is a separately sold daughter board that
plugs onto the expansion interface (EI3) of an EZ-KIT Lite/EZ-Board
evaluation system. The extender board aids the design and prototyping
phases of the embedded processor-targeted applications. For more infor-
mation refer to the product website, http://www.analog.com/EI3-Audio.
The Audio EI3 Extender Board utilizes the ADAU1761 SigmaDSP®
stereo, low power, 96 kHz, 24-bit audio codec. The codec provides line
input, line output, auxiliary input and headphone output.
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Purpose of This Manual
viii Audio EI3 Extender Board Manual
The following is a list of the Audio EI3 Extender Board interfaces.
• 3.5 mm line input connector (J4)
• 3.5 mm line output connector (J3)
• 3.5 mm auxiliary input (J5)
• 3.5 mm headphone (J2)
• Two omnidirectional MEMs microphones (U3 and U4)
Before using any of the interfaces, follow the setup procedure in “Audio
EI3 Extender Board Setup” on page 1-3.
Example programs are available to demonstrate capabilities of the Audio
EI3 Extender Board.
Purpose of This Manual
The Audio EI3 Extender Board Manual describes operation and configura-
tion of the extender board components. A schematic and a bill of materials
are provided as a reference guide for future processor board designs.
Intended Audience
The primary audience for this manual is a programmer who is familiar
with Analog Devices processors. This manual assumes that the audience
has a working knowledge of the appropriate processor architecture,
instruction set, and C/C++ programming languages.
Programmers who are unfamiliar with Analog Devices processors can use
this manual, but should supplement it with other texts that describe your
target architecture and hardware development tools.
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Audio EI3 Extender Board Manual ix
Preface
Programmers who are unfamiliar with the CrossCore Embedded Studio
programming environment or the mating evaluation board, should refer
to the CCES online help or the manual describing the board (see “Related
Documents”).
Manual Contents
The manual consists of:
• Chapter 1, “Using Audio EI3 Extender Board” on page 1-1
Provides basic board information.
• Appendix A, “Audio EI3 Extender Board Bill Of Materials” on
page A-1
Provides a list of hardware components used to manufacture the
EZ-Extender board.
• Appendix B, “Audio EI3 Extender Board Schematic” on page B-1
Provides all of the circuits on the extender board.
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What’s New in This Manual
x Audio EI3 Extender Board Manual
What’s New in This Manual
This is the first revision of the Audio EI3 Extender Board Manual.
Technical Support
You can reach Analog Devices processors and DSP technical support in
the following ways:
• Post your questions in the processors and DSP support community
at EngineerZoneTM:
http://ez.analog.com/community/dsp
• Submit your questions to technical support directly at:
http://www.analog.com/support
• E-mail your questions about processors, DSPs, and tools develop-
ment software from CrossCore Embedded Studio or
VisualDSP++:
Choose Help > Email Support. This creates an e-mail to
[email protected] and automatically attaches
your CrossCore Embedded Studio or VisualDSP++ version infor-
mation and license.dat file.
• E-mail your questions about processors and processor applications
to:
[email protected] or
[email protected] (Greater China support)
•IntheUSA only, call 1-800-ANALOGD (1-800-262-5643)
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Audio EI3 Extender Board Manual xi
Preface
• Contact your Analog Devices sales office or authorized distributor.
Locate one at:
www.analog.com/adi-sales
• Send questions by mail to:
Processors and DSP Technical Support
Analog Devices, Inc.
Three Technology Way
P.O. Box 9106
Norwood, MA 02062-9106
USA
Supported Products
This extender board supports the Expansion Interface 3 (EI3), and
requires TWI and SPORT interfaces. When connecting to the
ADSP-BF609 EZ-KIT Lite, use connector P1A, P1B, P2A, or P3A.
Product Information
Product information can be obtained from the Analog Devices Web site
and the CCES online help system.
Analog Devices Web Site
The Analog Devices Web site, www.analog.com, provides information
about a broad range of products—analog integrated circuits, amplifiers,
converters, and digital signal processors.
To access a complete technical library for each processor family, go to
http://www.analog.com/processors/technical_library. The manuals
selection opens a list of current manuals related to the product as well as a
link to the previous revisions of the manuals. When locating your manual
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Product Information
xii Audio EI3 Extender Board Manual
title, note a possible errata check mark next to the title that leads to the
current correction report against the manual.
Also note, myAnalog.com is a free feature of the Analog Devices Web site
that allows customization of a Web page to display only the latest infor-
mation about products you are interested in. You can choose to receive
weekly e-mail notifications containing updates to the Web pages that meet
your interests, including documentation errata against all manuals.
myAnalog.com provides access to books, application notes, data sheets,
code examples, and more.
Visit myAnalog.com (found on the Analog Devices home page) to sign up.
If you are a registered user, just log on. Your user name is your e-mail
address.
EngineerZone
EngineerZone is a technical support forum from Analog Devices. It allows
you direct access to ADI technical support engineers. You can search
FAQs and technical information to get quick answers to your embedded
processing and DSP design questions.
Use EngineerZone to connect with other DSP developers who face similar
design challenges. You can also use this open forum to share knowledge
and collaborate with the ADI support team and your peers. Visit
http://ez.analog.com to sign up.
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Audio EI3 Extender Board Manual xiii
Preface
Related Documents
For additional information about the product, refer to the following
publications.
Table 1. Related Processor Publications
Title Description
Processor Data Sheet General functional description, pinout, and
timing of the processor
Processor Hardware Reference Description of the internal processor archi-
tecture and all register functions
Blackfin Processor Programming Reference Description of all allowed processor assembly
instructions
Table 2. Related CCES Publications
Title Description
ADSP-BF60x EZ-KIT Lite Evaluation System
Manual
Description of the boards’ interfaces and
hardware components
CrossCore Embedded Studio Licensing Guide Description of the product’s licensing
options, installation, and activation
CrossCore Embedded Studio Assembler and
Preprocessor Manual
Description of the assembler functions and
commands
CrossCore Embedded Studio C/C++ Complier and
Library Manual for Blackfin Processors
Description of the complier functions and
commands for Blackfin processors
CrossCore Embedded Studio Linker and Utilities
Manual
Description of the linker functions and com-
mands
CrossCore Embedded Studio Loader and Utilities
Manual
Description of the loader/splitter functions
and commands
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Notation Conventions
xiv Audio EI3 Extender Board Manual
Notation Conventions
Text conventions used in this manual are identified and described as
follows.
Example Description
Close command
(File menu)
Titles in reference sections indicate the location of an item within the
CCES environment’s menu system (for example, the Close command
appears on the File menu).
{this | that} Alternative required items in syntax descriptions appear within curly
brackets and separated by vertical bars; read the example as this or
that. One or the other is required.
[this | that] Optional items in syntax descriptions appear within brackets and sepa-
rated by vertical bars; read the example as an optional this or that.
[this,…] Optional item lists in syntax descriptions appear within brackets delim-
ited by commas and terminated with an ellipse; read the example as an
optional comma-separated list of this.
.SECTION Commands, directives, keywords, and feature names are in text with
letter gothic font.
filename Non-keyword placeholders appear in text with italic style format.
Note: For correct operation, ...
A Note provides supplementary information on a related topic. In the
online version of this book, the word Note appears instead of this
symbol.
Caution: Incorrect device operation may result if ...
Caution: Device damage may result if ...
A Caution identifies conditions or inappropriate usage of the product
that could lead to undesirable results or product damage. In the online
version of this book, the word Caution appears instead of this symbol.
Warning: Injury to device users may result if ...
A Warning identifies conditions or inappropriate usage of the product
that could lead to conditions that are potentially hazardous for the
devices users. In the online version of this book, the word Warning
appears instead of this symbol.



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Audio EI3 Extender Board Manual 1-1
1USING AUDIO EI3 EXTENDER
BOARD
This chapter provides the Audio EI3 Extender Board setup procedure and
describes the interfaces the extender supports.
The information is presented in the following order.
•“Package Contents” on page 1-2
•“Supported Operating Systems” on page 1-2
•“System Requirements” on page 1-3
•“Audio EI3 Extender Board Setup” on page 1-3
•“Audio Interface” on page 1-4
•“Connectors” on page 1-4
•“Power LED (LED1)” on page 1-6
•“Power” on page 1-6
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Package Contents
1-2 Audio EI3 Extender Board Manual
Package Contents
Your Audio EI3 Extender Board package contains the following items.
• Audio EI3 Extender Board
• A bag containing hardware for securing the extender board on the
EZ-KIT Lite/EZ-Board
• One 3.5 mm male/male cable
• One set of stereo headphones
• Release note containing information about the product download
Contact the vendor where you purchased your extender board or contact
Analog Devices, Inc. if any item is missing.
Supported Operating Systems
CCES is supported on the following operating systems:
•Windows
®XP Professional SP3 (32-bit only)
• Windows Vista™Business, Enterprise, or Ultimate SP2 (32-bit
only)
• Windows 7 Professional, Enterprise, or Ultimate (32- and 64-bit)
Windows Vista and Windows 7 users may experience User Access
Control (UAC) related errors if the software is installed into a pro-
tected location, such as Program Files or Program Files (x86).
We recommend installing the software in a non-UAC-protected
location.
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Audio EI3 Extender Board Manual 1-3
Using Audio EI3 Extender Board
System Requirements
Verify that your PC has these minimum requirements for the CCSE
installation:
• 2 GHz single-core processor
• 1 GB RAM
• 8 GB available disk space
• One open USB port
A faster disk drive decreases the build time, especially for a large
amount of source files.
Audio EI3 Extender Board Setup
The Audio EI3 Extender Board does not have any configuration that is
required. Make sure the EZ-KIT Lite/EZ-Board that the Audio EI3
Extender Board will be connected to is set up properly.
Before powering the board, use the provided hardware to secure the
extender to the EZ-KIT Lite/EZ-Board. The small spacers are intended
for between the extender board and the mating board. If used, standoffs
on the EZ-KIT Lite/EZ-Board may need to be removed. The extender
board uses shorter standoffs and a screw secures these standoffs.
Refer to the readme text files in the CrossCore Embedded Studio direc-
tory (<install_path>\Audio_EI3_Extender_Board-RelX.X.X\Audio_EI3,
where X.X.X denotes the support package release number) for information
on how to configure the EZ-KIT Lite boards. For more information on
the Audio EI3 Extender Board, please go to http://www.analog.com/
EI3-Audio. The board support package (BSP) for the Audio EI3 Extender
Board can be found at this website.
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Audio Interface
1-4 Audio EI3 Extender Board Manual
Audio Interface
The SigmaDSP ADAU1761 (U2) connects to the SPORT interface of the
EI3 connector (J1). All control and setup communication uses the TWI
interface. The TWI address is set to 0111 000X (where Xis the read or
write bit) by resistors R9 and R10. The last two address bits can be
adjusted through populating R7 and/or R8, in conjunction with depopu-
lating R9 and/or R10.
There are two input connectors and two output connectors. J2 is the ste-
reo headphone output. J3 is line out and is a single-ended stereo output.
J5 is the auxiliary input. J4 connects a single-ended stereo line in to the
codec. A standard 3.5 mm male-to-male cable connects to any of these
four connectors.
The board also has two omnidirectional MEMS microphones, which are
Analog Devices part number ADMP421 ICs (U3 and U4). The micro-
phones connect gluelessly to the ADAU1761 processor.
Example programs demonstrating the audio interface capabilities are
included in the CrossCore Embedded Studio directory. Once installed,
the example programs can be found in the <install_path>\Audio_EI3_
Extender_Board-RelX.X.X\Audio_EI3 directory, where X.X.X denotes the
support package release number.
Connectors
The LED, connector, and jumper locations are shown in Figure 1-1.
The J2–J5 connectors are 3.5 mm stereo jacks from CUI Inc. (part num-
ber SJ-3523-SMT). Use any 3.5 mm audio cable to connect to J2–J5.
The P1 connector is a 0.65 mm power jack from CUI Inc. (part number
CP1-022PJTR-ND). Use this jack when the EZ-KIT Lite/EZ-Board can-
not provide adequate power. The 5V adaptor is then connected to P1 and
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Audio EI3 Extender Board Manual 1-5
Using Audio EI3 Extender Board
the main board produces the 1.8–3.3V needed for the Audio EI3 Extender
Board to operate on the signal VIO.
The J1 connector is a 120-pin 0.6 mm pitch connector from Hirose (part
number FX8-120S-SV(21)). This connector mates with Hirose part num-
ber FX8-120P-SV1(91).
P2 is the SigmaStudio interface connector. The interface cable is Analog
Devices part number EVAL-ADUSB2EBZ, which is available through
www.analog.com. This provides a USB connection to a host PC and the
full capabilities of the SigmaDSP ADAU1761 are available through Sig-
maStudio. Only the I2C interface of the connection is available.
As shown in Figure 1-1, connector J1 is located on the opposite
side of the board. For this reason, J1 is shown with a dashed line.
Figure 1-1. LED, Connector and Jumper Locations
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Power LED (LED1)
1-6 Audio EI3 Extender Board Manual
Power LED (LED1)
The power LED (LED1) is located on the bottom of the board and is green
when the Audio EI3 Extender Board is powered.
Power
The Audio EI3 Audio Extender Board needs the EZ-KIT Lite/EZ-Board
to be powered and does not require power input to the P2 power
connector.
The VIO power rail of the Audio EI3 Extender Board must be in the range
of 1.8V–3.3V for proper operation. Ensure that any main board con-
nected to the Audio EI3 Extender Board supplies this voltage over pin 116
of J1.
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