Analog Devices EVAL-AD2437A1NZ Manuel utilisateur

EVAL-AD2437A1NZ Manual

Revision 2.1 , August 2023

Part Number

EVAL-AD2437A1NZ

Analog Devices, Inc.

One Technology Way

Norwood, MA 02062-9106

without prior, express written consent from Analog Devices, Inc.

Disclaimer

Analog Devices, Inc. reserves the right to change this product without prior notice. Information furnished by Ana-

log 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 implication or otherwise under the patent rights of Analog Devices, Inc.

Trademark and Service Mark Notice

The Analog Devices logo, Blackfin, SHARC, A2B, SigmaDSP, SigmaStudio+, and EngineerZone 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 EVAL-AD2437A1NZ evaluation board is designed to be used solely in a laboratory 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 EVAL-AD2437A1NZ evaluation 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 boards in the protective shipping package.

EVAL-AD2437A1NZ Manual ii

Contents

Preface

Purpose of This Manual.................................................................................................................................1–2

Manual Contents ........................................................................................................................................... 1–2

Technical Support.......................................................................................................................................... 1–3

Supported Integrated Circuit ......................................................................................................................... 1–3

Supported Tools............................................................................................................................................. 1–3

Product Information...................................................................................................................................... 1–3

Analog Devices Website.............................................................................................................................. 1–4

EngineerZone ............................................................................................................................................. 1–4

Using the Board

Product Overview .......................................................................................................................................... 2–1

Package Contents........................................................................................................................................... 2–2

Default Configuration ................................................................................................................................... 2–2

Reference Design Information .......................................................................................................................2–3

ADAU1452 - SigmaDSP Digital Audio Processor.......................................................................................... 2–4

AD1937 - Four ADCs/Eight DACs with PLL, 192 kHz, 24-Bit Codec ........................................................ 2–4

ADM6315 - Open-Drain Microprocessor Supervisory Circuit ......................................................................2–5

LT8609 - 2A/3A Peak Synchronous Step-Down Regulator with 2.5μA Quiescent Current............................ 2–5

Hardware Reference

Switches......................................................................................................................................................... 3–1

User I/O Ports ( S3)................................................................................................................................... 3–2

Reset Pushbutton ( S1) .............................................................................................................................. 3–3

Connectors .................................................................................................................................................... 3–3

A2B ( P17and P18) ................................................................................................................................... 3–4

I2C/SPI Connector ( P2 and P23) ........................................................................................................ 3–5

Sigma Studio+ ( P22)................................................................................................................................. 3–5

EVAL-AD2437A1NZ Manual iii

4 Channel ADC Input ( P1, P9, P3, and P4)............................................................................................ 3–5

ADAU1452 AUX Select ( P10-P13)......................................................................................................... 3–5

Headphone DAC ( P25 ) ........................................................................................................................... 3–5

SPDIF Output ( P19)................................................................................................................................ 3–6

SPDIF Input ( P21)................................................................................................................................... 3–6

8 Channel DAC Output ( J9 )................................................................................................................... 3–6

Multipurpose pins ( P5 ) ............................................................................................................................ 3–6

1452 I2S Connector ( P7 and P8) ......................................................................................................... 3–6

SoM Interface Connection ( P16, P20, P15) ...................................................................................... 3–6

Power Plug ( P14)...................................................................................................................................... 3–9

Jumpers ......................................................................................................................................................... 3–9

A2B Address Select ( JP3 and JP4)..................................................................................................... 3–10

Self Discovery ( JP1) ............................................................................................................................... 3–11

Boot Disable ( JP5) ................................................................................................................................. 3–11

ADAU1452 CLK Select ( JP6) ................................................................................................................ 3–11

USBi SPI SEL ( JP2 ) .............................................................................................................................. 3–11

AD1937 Clock Select ( P6 ) ..................................................................................................................... 3–12

LEDs ........................................................................................................................................................... 3–12

A2B Interrupt ( DS4)................................................................................................................................ 3–13

ADAU1452 Status ( DS1) ........................................................................................................................ 3–14

USBi ( DS2) ............................................................................................................................................. 3–14

User I/O Status ( DS5) ............................................................................................................................. 3–14

Port Connection Status ( DS10, DS11, DS12, and D13) ............................................................. 3–14

Reset LED ( DS7)..................................................................................................................................... 3–14

Power Status LED Indicator .................................................................................................................... 3–14

iv EVAL-AD2437A1NZ Manual

1 Preface

Thank you for purchasing the Analog Devices, Inc. EVAL-AD2437A1NZ evaluation board.

The EVAL-AD2437A1NZ is an evaluation board to evaluate various peripherals of the AD2437 A2B (Audio Bus)

transceiver. Refer to the datasheet/manual to get more details about the AD2437.

The EVAL-AD2437A1NZ can be configured to be a Main or Local Powered Sub (LPS) node. The EVAL-

AD2437A1NZ can be connected to a Main Node, Local Powered Sub (LPS) or a Bus Powred Sub (BPS) node.

These evaluation boards are intended to be used with the SigmaStudio+ graphical development tool.

Block Diagram of Evaluation Board:

VIN VBUS

AD2437

Filters

XLR

A-Port

XLR

B-Port

ADAU1452

USBi

10-Pin Boot

EEPROM

SOM

Connectors

I2S

I2C

SPI

AD1937

S/PDIF

Output

RCA

S/PDIF

Input

RCA

Analog Line Input Analog Line Output

I2S

24V DC Input

3.3V

LT8609A

24V

5V LT8609A

3.3V

In the default configuration (main mode), this evaluation board provides A2B main node functionality for an A2B

network.

Preface

EVAL-AD2437A1NZ Manual 1–1

A PC host controls the AD2437 A2B main transceiver using I2C or SPI signals over the USB-to- I2C/SPI bridge,

USBi(EVAL-ADUSB2EB). This allows SigmaStudio+ to directly discover and control an A2B network as well as to

read back registers and monitor performance. Alternatively, the EVAL-AD2437A1NZ is controllable over a SoM in-

terface through an external DSP host device like the SC594. In the default configuration as a main mode, AD2437

digital audio signals interface directly to the ADAU1452 SigmaDSPTM, which provides the clock and frame sync

signals to the A2B network.

The evaluation board also supports local-powered sub mode with different jumper settings, where AD2437 digital

audio signals could interface to ADAU1937 audio codec or four microphones with the help of the ADAU1452. In

the sub mode, AD2437 drives clock and frame sync to ADAU1937 and ADAU1452 for transmitting or receiving

data. Four digital MEMS PDM microphones can interface directly with the A2B transciever.

The SigmaStudio+®graphical development tool is the programming, development, and tuning software for the Sig-

maDSP, A2B, and Sharc processors. Familiar audio processing blocks can be wired together as in a schematic, and

the compiler generates DSP-ready code and a control surface for setting and tuning parameters. This tool allows

engineers with no DSP code writing experience to easily implement a DSP into their design and yet is still powerful

enough to satisfy the demands of experienced DSP designers. SigmaStudio+ links with both Analog Devices evalua-

tion boards and production designs to provide full in-circuit real-time IC control.

SigmaStudio+ includes an extensive library of algorithms to perform audio processing such as filtering, mixing, and

dynamics processing, as well as basic low-level DSP functions and control blocks. Advanced record-side processing

algorithms such as Enhanced Stereo Capture and wind noise detection are included in the standard libraries. Plug-in

algorithms from Analog Devices and 3rd party partners can be added to SigmaStudio+'s drag-and-drop library.

Along with its graphical DSP signal flow development, SigmaStudio+ also includes other features to speed up the

design cycle from product concept to release. SigmaStudio+ includes tools for intuitively setting control registers,

calculating tables of filter coefficients, visualizing filter magnitude and phase responses, generating C header files,

and sequencing a series of controls to ease your transition from SigmaStudio+ to system implementation on your

microcontroller.

Purpose of This Manual

This manual provides instructions for installing the product hardware (board). This manual describes the operation

and configuration of board components and provides guidelines for running code on the board.

Manual Contents

The manual consists of:

•Using the board

Provides basic board information.

•Hardware Reference

Purpose of This Manual

1–2 EVAL-AD2437A1NZ Manual

Provides information about the hardware aspects of the board.

•Bill of Materials

A companion file in PDF format that lists all of the components used on the board is available on the website

at https://www.analog.com/en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-

AD2437A1NZ.html.

•Schematic

A companion file in PDF format documenting all of the circuits used on the board is available on the website

at https://www.analog.com/en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-

AD2437A1NZ.html.

Technical Support

You can reach Analog Devices technical support in one of the following ways:

•Post your questions in the A2B support community at EngineerZone®:

http://ez.analog.com/a2b/

•Submit your questions to technical support directly at:

http://www.analog.com/support

•E-mail your questions about A2B transceiver applications and SigmaStudio+ to:

[email protected]

•Contact your Analog Devices sales office or authorized distributor. Locate one at:

http://www.analog.com/adi-sales

Supported Integrated Circuit

This evaluation system supports the Analog Devices AD2437 IC.

Supported Tools

Information about SigmaStudio+ and the A2B software plug-in for the EVAL-AD2437A1NZ evaluation board is

available at: www.analog.com/SigmaStudio+.

Product Information

Information about the AD2437 product family is available at: www.analog.com/A2B

Technical Support

EVAL-AD2437A1NZ Manual 1–3

Analog Devices Website

The Analog Devices website, http://www.analog.com, provides information about a broad range of products - ana-

log integrated circuits, amplifiers, converters, transceivers, and digital signal processors.

Also note, MyAnalog.com is a free feature of the Analog Devices website that allows customization of a web page to

display only the latest information 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 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, Inc. It allows you direct access to ADI technical

support engineers. You can search FAQs and technical information to get quick answers to your embedded process-

ing 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.

Product Information

1–4 EVAL-AD2437A1NZ Manual

2 Using the Board

This chapter provides information on the major components and peripherals on the board, along with instructions

for installing and setting up the emulation software.

Product Overview

The board features:

•Analog Devices AD2437 - Audio Bus Transceiver

•Audio

•Analog Devices ADAU1452 - SigmaDSP Digital Audio Processor

•Analog Devices AD1937 - Four ADCs/Eight DACs with PLL, 192 kHz, 24-Bit Codec

•One 3.5mm audio jack

•Two RCA SPDIF Input and Output Connectors

•Four XLR connectors for audio interface for balanced +4dBu line level input.

•DB25 Connector for eight channels of +4dBu line level output

•A2B

•One Male and one female XLR connector with integrated light-ring for LED diffusion.

•LEDs

•Thirteen LEDs: more details will be in LED section

•Pushbuttons

•Three pushbuttons: Reset, SIO2, GPIO7

•External power supply

•24V @3.0 Amps

Using the Board

EVAL-AD2437A1NZ Manual 2–1

Package Contents

Your EVAL-AD2437A1NZ package contains the following items.

•EVAL-AD2437A1NZ board

•EVAL-ADUSB2EBZ (Rev 1.5 and more)

•XLR Cable

•Universal 24V DC power supply

•A2B Software - Online Request Document

Contact the vendor where you purchased your EVAL-AD2437A1NZ evaluation board or contact Analog Devices,

Inc. if any item is missing.

Default Configuration

The Default Hardware Setup figure shows the default settings for jumpers and switches and the location of the

jumpers, switches, connectors, and LEDs. Confirm that your board is in the default configuration before using the

board.

Package Contents

2–2 EVAL-AD2437A1NZ Manual

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