Analog Devices UG-284 Manual de usuario

Evaluation Board User Guide

UG-284

One Technology Way •P. O. Box 9106 •Norwood, MA 02062-9106, U.S.A. •Tel: 781.329.4700 •Fax: 781.461.3113 •www.analog.com

ADAU1373 Evaluation Board User Guide

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 | Page 1 of 24

PACKAGE CONTENTS

ADAU1373 evaluation board

5 V ac-to-dc power adapter

Evaluation board user guide

DOCUMENTS NEEDED

ADAU1373 data sheet

AN-1006 Application Note, Using the EVAL-ADUSB2EBZ

GENERAL DESCRIPTION

The ADAU1373 is a low power audio codec that supports stereo

record and playback. It provides eight single-ended or four

differential analog inputs with PGA for adjusting the gain. The

support for two stereo digital microphone inputs is provided so

that, in total, four digital microphones can be connected. In

addition, three serial digital audio in/out ports are provided

with ASRCs to support various sampling rates at the

input/output ports, allowing flexible system design.

The analog output side consists of line outputs, a headphone

output, a speaker output, and a receiver output. The two stereo

single-ended line level outputs are included, which can be

configured as two differential outputs. The headphone output is

stereo true-ground-centered with efficient Class-G architecture.

The efficient stereo filterless Class-D switching amplifier pro-

vides around 1 W stereo power for speakers. The differential

receiver amplifier can be used to connect the separate receiver

speaker.

The ADAU1373 evaluation board includes the complete

application circuit for the ADAU1373. The board is featured

with USBi connection to the SigmaStudio™ graphical develop-

ment tool running on a host PC, which is used to program the

ADAU1373.

Included in this user guide is a detailed description for the

ADAU1373 evaluation board. It is recommended that the

ADAU1373 data sheet be read along with this user guide. Full

details about the part are available in the ADAU1373 data sheet,

which provides more detailed information about the specifica-

tions, internal block diagrams, and application guidance for the

codec IC.

UG-284 Evaluation Board User Guide

Rev. 0 | Page 2 of 24

TABLE OF CONTENTS

Package Contents.............................................................................. 1

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

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

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

Setting Up the Board—Quick Start................................................ 3

SigmaStudio Software Installation ............................................. 3

Hardware Setup, USBi.................................................................. 3

Powering the Board...................................................................... 3

Setting Up the Registers in SigmaStudio................................... 3

Evaluation Board Hardware.............................................................5

Power Supplies...............................................................................5

Digital Audio Interface and Digital Microphone Interface .....7

Analog Input and Output.............................................................9

Clock and Control Port ............................................................. 10

Evaluation Board Schematics and Artwork................................ 11

Ordering Information.................................................................... 20

Bill of Materials........................................................................... 20

Related Links................................................................................... 21

REVISION HISTORY

6/11—Revision 0: Initial Version

Evaluation Board User Guide UG-284

Rev. 0 | Page 3 of 24

SETTING UP THE BOARD—QUICK START

SigmaStudio SOFTWARE INSTALLATION

To install the SigmaStudio software, follow these steps:

1. Open the provided .zip file and extract the files to your PC.

Alternatively, insert the SigmaStudio CD into the PC

optical drive and locate the SigmaStudio folder on the CD.

2. If Microsoft .NET Framework Version 3.5 is not already

installed on the PC, install it by double-clicking

dotnetfx.exe.

3. Install SigmaStudio by double-clicking setup.exe and

following the prompts. A computer restart is not required.

HARDWARE SETUP, USBi

To set up the USBi hardware, follow these steps:

1. Plug the USBi ribbon cable into Header J23.

2. Connect the USB cable to your computer and to the USBi.

3. When prompted for drivers, follow these steps:

a) Select Install from a list or a specific location.

b) Select Search for the best driver in these locations.

c) Select the box for Include this location in the search.

The USBi driver is located in C:\Program Files\Analog

Devices Inc\Sigma Studio\USB drivers.

d) Click Next.

e) If prompted to choose a driver, select CyUSB.sys.

f) If the PC is running Windows® XP and you receive the

message that the software has not passed Windows

logo testing, click Continue Anyway.

POWERING THE BOARD

1. Plug the external dc power adapter into J34 to input 5 V dc

power to the board.

2. Short Jumpers J40, J33, J31, and J32 to select the on-board

LDO-generated voltages that are connected to SPKVDD,

HPVDD, AVDD, and DVDD, respectively.

3. Set Jumpers J43, J36, J39, J37, and J38 to select the required

voltage (1.8 V, 2.4 V, or 3.3 V) connected to each IOVDDx

(x = 1 to 5).

SETTING UP THE REGISTERS IN SigmaStudio

The codec is configured with SigmaStudio software. To set up

the registers in SigmaStudio, follow these steps:

1. Create a new project. Select New Project under the File

menu. The Hardware Configuration tab opens.

2. Click and drag an ADAU1373 cell and a USBi cell into the

blank work area.

3. Connect the USBi cell to the ADAU1373 cell by clicking

and dragging from the top blue output pin of the USBi cell

to the green input pin of the ADAU1373 cell. The window

should now resemble Figure 1.

4. In the IC 1 - ADAU1373_REVB_V1.13 tab, configure the

ADAU1373 registers by clicking the intuitive graphic user

interface (GUI) elements in the Input A to Input D,

Analog Input Signal Routing, and Mic Bias Control

sections to set up the proper datapath (see Figure 2).

The SigmaStudio software includes help information. Press the

F1 key to open the help window.

09899-001

Figure 1. Hardware Configuration Tab—USBi Connection

UG-284 Evaluation Board User Guide

Rev. 0 | Page 4 of 24

09899-002

Figure 2. Hardware Configuration Tab—Register Setup

Evaluation Board User Guide UG-284

Rev. 0 | Page 5 of 24

EVALUATION BOARD HARDWARE

POWER SUPPLIES

5V DC INPUT

IOVDD2

FOR

DAI B

IOVDD5

FOR

C/SPI

IOVDD1

FOR

DAI A

IOVDD4

FOR

DMIC

IOVDD3

FOR

DAI C

SPKVDD

HPVDD AVDD

DVDD

09899-003

Figure 3. Power Supply

The evaluation board requires an external 5 V dc power adapter

plugged into J34. This 5 V dc input drives the on-board LDOs

to generate 1.5 V, 1.8 V, 2.4 V, 3.3 V, or 3.6 V, which feeds into

the ADAU1373 and other on-board circuits. The power

supplies the ADAU1373 requires are listed in Table 1.

Table 1. ADAU1373 Power Supplies

Power Supply LDO Voltage

AVDD 1.8 V

HPVDD 1.8 V

SPKVDD 3.6 V

DVDD 1.5 V

IOVDD1 to IOVDD5 1.8 V, 2.4 V, or 3.3 V

If voltages other than the default LDO output are needed, external

power supplies can be used for this purpose. Each power supply

for the ADAU1373 has a set of jumpers to select the LDO

output or external power supply.

J31 is for AVDD power supply selection. The selection options

are shown in Table 2.

Table 2. J31

Jumper

Position Function

On On-board LDO-generated 1.8 V connected to AVDD

Off External power supply connected to Test Pin AVDD

and Test Pin GND

J33 is for HPVDD power supply selection. The selection table is

shown in Table 3.

Table 3. J33

Jumper

Position Function

On On-board LDO-generated 1.8 V connected to

HPVDD

Off External power supply connected to Test Pin HPVDD

and Test Pin GND

J32 is for DVDD power supply selection. The selection options

are shown in Table 4.

Table 4. J32

Jumper

Position Function

On On-board LDO-generated 1.5 V connected to DVDD

Off External power supply connected to Test Pin DVDD

and Test Pin GND

J40 is for SPKVDD power supply selection. The selection

options are shown in Table 5.

Table 5. J40

Jumper

Position Function

On On-board LDO-generated 3.6 V connected to

SPKVDD

Off External power supply connected to SPKVDD: J41

for SPKVDD and J42 for GND

J43 is for IOVDD1 power supply selection, which powers

Digital Audio Interface A. The selection options are shown in

Table 6.

UG-284 Evaluation Board User Guide

Rev. 0 | Page 6 of 24

Table 6. J43

Jumper

Position1Function

1-2 On-board LDO-generated 1.8 V connected to

IOVDD1

3-4 On-board LDO-generated 3.3 V connected to

IOVDD1

5-6 On-board LDO-generated 2.4 V connected to

IOVDD1

Off External power supply connected to

Test Pin IOVDD1 and Test Pin GND

1Jumper Position x-y means Pin x and Pin y are connected together via a

jumper capacitor.

J36 is for IOVDD2 power supply selection, which powers digital

Audio Interface B. The selection options are shown in Table 7.

Table 7. J36

Jumper

Position1Function

1-2 On-board LDO-generated 1.8 V connected to

IOVDD2

3-4 On-board LDO-generated 3.3 V connected to

IOVDD2

5-6 On-board LDO-generated 2.4 V connected to

IOVDD2

Off External power supply connected to

Test Pin IOVDD2 and Test Pin GND

1Jumper Position x-y means Pin x and Pin y are connected together via a

jumper capacitor.

J39 is for IOVDD3 power supply selection, which powers digital

Audio Interface C. The selection options are shown in Tabl e 8.

Table 8. J39

Jumper

Position1Function

1-2 On-board LDO-generated 1.8 V connected to

IOVDD3

3-4 On-board LDO-generated 3.3 V connected to

IOVDD3

5-6 On-board LDO-generated 2.4 V connected to

IOVDD3

Off External power supply connected to

Test Pin IOVDD3 and Test Pin GND

1Jumper Position x-y means Pin x and Pin y are connected together via a

jumper capacitor.

J37 is for IOVDD4 power supply selection, which powers the

digital microphone interface. The selection options are shown

in Table 9.

Table 9. J37

Jumper

Position1Function

1-2 On-board LDO-generated 1.8 V connected to

IOVDD4

3-4 On-board LDO-generated 3.3 V connected to

IOVDD4

5-6 On-board LDO-generated 2.4 V connected to

IOVDD4

Off External power supply connected to

Test Pin IOVDD4 and Test Pin GND

1Jumper Position x-y means Pin x and Pin y are connected together via a

jumper capacitor.

J38 is for IOVDD5 power supply selection, which powers the

I2C/SPI port. The selection options are shown in Table 10.

Table 10. J38

Jumper

Position1Function

1-2 On-board LDO-generated 1.8 V connected to

IOVDD5

3-4 On-board LDO-generated 3.3 V connected to

IOVDD5

5-6 On-board LDO-generated 2.4 V connected to

IOVDD5

Off External power supply connected to

Test Pin IOVDD5 and Test Pin GND

1Jumper Position x-y means Pin x and Pin y are connected together via a

jumper capacitor.

Evaluation Board User Guide UG-284

Rev. 0 | Page 7 of 24

DIGITAL AUDIO INTERFACE AND DIGITAL MICROPHONE INTERFACE

09899-004

DIGITAL AUDIO

INTERFACE A

DIGITAL MIC

INTERFACE 1

DIGITAL MIC

INTERFACE 2

DIGITAL AUDIO

INTERFACE B

DIGITAL AUDIO

INTERFACE C

Figure 4. Digital Audio Interface and Digital Microphone Interface

The evaluation board provides three digital audio interfaces

(J28 to J30) and two digital microphone interfaces (J44/J45

and J46/J47).

The pin definitions for J28, J29, and J30 are shown in Figure 5,

Figure 6, and Figure 7, respectively.

GND

MCLK1

GPIO1

A_BCLK

A_LRC

A_DACDAT

A_ADCDAT

09899-016

Figure 5. Pin Definitions for J28

GND

MCLK2

GPIO2

B_BCLK

B_LRC

B_DACDAT

B_ADCDAT

09899-017

Figure 6. Pin Definitions for J29

NC = NO CONNECT. DO NOT

CONNECT TO THIS PIN.

GND

GPIO3

C_BCLK

C_LRC

C_DACDAT

C_ADCDAT

09899-018

Figure 7. Pin Definitions for J30

The pin definitions for J44 are listed in Table 11.

Table 11. J44

Pin No. Signal

1 IOVDD4

2 DMIC_DATA1

3 LR_SEL (high)

4 NC

5 DMIC_CLK

6 GND

UG-284 Evaluation Board User Guide

Rev. 0 | Page 8 of 24

The pin definitions for J45 are listed in Table 12.

Table 12. J45

Pin No. Signal

1 IOVDD4

2 DMIC_DATA1

3 LR_SEL (low)

4 NC

5 DMIC_CLK

6 GND

The pin definitions for J46 are listed in Table 13.

Table 13. J46

Pin No. Signal

1 IOVDD4

2 DMIC_DATA1

3 LR_SEL (high)

4 NC

5 DMIC_CLK

6 GND

The pin definitions for J47 are listed in Table 14.

Table 14. J47

Pin No. Signal

1 IOVDD4

2 DMIC_DATA1

3 LR_SEL (low)

4 NC

5 DMIC_CLK

6 GND

Evaluation Board User Guide UG-284

Rev. 0 | Page 9 of 24

ANALOG INPUT AND OUTPUT

09899-005

SPEAKER

OUTPUT

HEADPHONE

OUTPUT

ANALOG

OUTPUT 2

ANALOG

OUTPUT 1

EARPIECE

OUTPUT

NALOG

INPUT 1

NALOG

INPUT 2

NALO

INPUT 3

NALOG

INPUT 4

Figure 8. Analog Input and Output Interface

On the board, there are four analog inputs (J4, J5, J8, and J9).

Near each input, there is a three-way jumper that selects which

bias voltage is routed to this input pair. These jumpers are J2, J3,

J6, and J7. The configurations are shown in Figure 9, and the

definitions of these jumper configurations are listed in Table 15,

Table 16, Table 17, and Table 1 8, respectively.

MICB2

MICB1

MICB2

MICB1

09899-019

POSITIONA POSITION B

Figure 9. Configuration for Jumpers J2, J3, J6, and J7

Table 15. J2

Position Function

A Microphone Bias 1 connected to Analog Input 1

B Microphone Bias 2 connected to Analog Input 1

Table 16. J3

Position Function

A Microphone Bias 1 connected to Analog Input 2

B Microphone Bias 2 connected to Analog Input 2

Table 17. J6

Position Function

A Microphone Bias 1 connected to Analog Input 3

B Microphone Bias 2 connected to Analog Input 3

Table 18. J7

Position Function

A Microphone Bias 1 connected to Analog Input 4

B Microphone Bias 2 connected to Analog Input 4

On the board, there are two analog outputs (J10 and J11),

one earpiece output for mono differential signals (J18), one

headphone output (J12), and two pairs of speaker outputs

(J13/J14 and J15/J16).

UG-284 Evaluation Board User Guide

Rev. 0 | Page 10 of 24

CLOCK AND CONTROL PORT

09899-006

C/SPI

SELECTION

C ADDRESS

SELECTION

EXTERNAL I

ADAPTER

CONNECTOR

EXTERNAL

CLOCK

IMPUT

MCLK2

ELECTION

JUMPER

MCLK1

ELECTION

JUMPER

RESET

Figure 10. Clock and Control Port

There are two master clock input pins for the ADAU1373:

MCLK1 and MCLK2. For each master clock, there are three

clock sources that can be selected by Jumper 21 and Jumper 22.

09899-023

OSC SMA1

POSITIONA

PSI

OSC SMA1

POSITION B

PSI

OSC SMA1

POSITION C

PSI

Figure 11. Configuration for Jumpers 21 and 22

J21 is for MCLK1 selection. The position definitions are shown

Figure 11 and Table 19.

Table 19. J21

Jumper

Position Function

A Use an on-board 12.288 MHz oscillator as MCLK1.

B Use an external SMA clock input as MCLK1.

C Use an audio precision PSIA MCLK input connected

to J28 as MCLK1.

J22 is for MCLK2 selection. The position definitions are shown

in Figure 11 and Table 2 0.

Table 20. J22

Jumper

Position Function

A Use an on-board 12.288 MHz oscillator as MCLK2.

B Use an external SMA clock input as MCLK2.

C Use an audio precision PSIA MCLK input connected

to J29 as MCLK2.

J23 is for the external I2C/SPI controller (USBi board) connec-

tion. J24 selects the control port mode of the ADAU1373. The

position definitions of this jumper are shown in Table 21.

Table 21. J24

Jumper Position Function

On I2C mode

Off SPI mode

J25 selects the I2C device address of the ADAU1373. The

position definitions of this jumper are shown in Table 22.

Table 22. J25

Jumper Position Function

On I2C devices address = 0x1C.

Off I2C devices address = 0x1A.

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