2024年4月28日发(作者：)

EVAL-ADAU1452MINIZ User Guide

UG-636

One

Technology

Way

•

P.O.

Box

9106

•

Norwood,

MA

02062-9106,

U.S.A.

•

Tel:

781.329.4700

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Fax:

781.461.3113

•

Evaluating the ADAU1452 SigmaDSP Audio Processor

FEATURES

4 analog inputs

8 analog outputs

Stereo S/PDIF input and output

Self-boot EEPROM memory

GENERAL DESCRIPTION

This user guide explains the design, setup, and operation of the

EVAL-ADAU1452MINIZ evaluation board.

This evaluation board provides access to the digital serial audio

ports of the ADAU1452, as well as some of its general-purpose

I/Os. An analog I/O is provided by the included AD1938 codec.

The ADAU1452 core is controlled by Analog Devices, Inc.,

SigmaStudio™ software, which interfaces to the board via a USB

connection. The board is powered by a 6 V dc supply, which is

regulated to the voltages required on the board. The printed

circuit board (PCB) is a 4-layer design, with a single ground

plane and a single power plane on the inner layers. The board

contains connectors for external analog inputs and outputs and

optical S/PDIF interfaces. The master clock is provided by the

integrated oscillator circuit and the on-board 12.288 MHz

passive crystal.

For more information about the ADAU1452 device, see the

ADAU1452 data sheet, which should be used in conjunction

with this user guide.

EVALUATION KIT CONTENTS

EVAL-ADAU1452MINIZ evaluation board

EVAL-ADUSB2EBZ (USBi) communications adapter

USB cable with Mini-B plug

6 V ac-to-dc power supply

ADDITIONAL EQUIPMENT NEEDED

2 audio cables

2 optical cables

PC running Windows XP, Windows Vista, or Windows 7

DOCUMENTS NEEDED

ADAU1452 data sheet

AD1938 data sheet

AN-1006 Applications Note, Using the EVAL-ADUSB2EBZ

PHOTOGRAPH OF THE EVAL-ADAU1452MINIZ EVALUATION BOARD

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Figure 1. Evaluation Board Top Side Photograph

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. 0 | Page 1 of 40

UG-636

EVAL-ADAU1452MINIZ User Guide

Adding S/PDIF Input and Output to the Project ................... 10

Using the Evaluation Board .......................................................... 14

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

Inputs and Outputs .................................................................... 14

Multipurpose (MP) Pins ........................................................... 16

Auxiliary ADC Pins ................................................................... 16

Communications Header .......................................................... 16

Self-Boot ...................................................................................... 17

Reset ............................................................................................. 19

Status LEDs ................................................................................. 19

20

Integrated Circuits (IC) ............................................................. 20

Status LEDs ................................................................................. 20

Switch and Push-Button ............................................................ 20

Evaluation Board Schematics and Layout Artwork ................... 21

Bill of Materials ............................................................................... 38

TABLE OF CONTENTS

Features .............................................................................................. 1

Evaluation Kit Contents ................................................................... 1

Additional Equipment Needed ....................................................... 1

Documents Needed .......................................................................... 1

General Description ......................................................................... 1

Photograph of the EVAL-ADAU1452MINIZ Evaluation Board ..... 1

Revision History ............................................................................... 2

Evaluation Board Block Diagrams ................................................. 3

Setting Up the Evaluation Board .................................................... 4

Installing the SigmaStudio Software .......................................... 4

Installing the USBi (EVAL-ADUSB2EBZ) 4

Setting the S2 Switch .................................................................... 5

Powering Up the Board ............................................................... 5

Connecting the Audio Cables ..................................................... 6

Setting Up Communications in SigmaStudio ........................... 7

Creating a Basic Signal Flow ....................................................... 8

Downloading the Program to the DSP ...................................... 9

REVISION HISTORY

1/14—Revision 0: Initial Version

Rev. 0 | Page 2 of 40