Texas Instruments TLV320AIC3268EVM-U User manual

User's Guide

SLAU564A–February 2014–Revised February 2014

TLV320AIC3268EVM-U Evaluation Module

This User’s Guide describes the operation, use, and features of the TLV320AIC3268EVM-U. For

questions and support go to the E2E forums (e2e.ti.com).

The main contents of this document are:

• Hardware descriptions and implementation

• Start up procedure using PurePath™ Console 2 (PPC2) software with the AIC3268 plug-in

Table 1. Related Documents

Document Title Literature Number

TLV320AIC3268 Data Sheet SLAS953

PurePath Graphic Development Suite PurePath Console

Contents

1 Features ...................................................................................................................... 2

2 Introduction .................................................................................................................. 2

2.1 Electrostatic Discharge Warning ................................................................................. 2

2.2 Unpacking the EVM ................................................................................................ 3

3 Getting Started .............................................................................................................. 4

4 PurePath Console 2 Software ............................................................................................. 4

4.1 Installation ........................................................................................................... 4

4.2 Graphical User Interface (GUI) ................................................................................... 5

5 TLV320AIC3268EVM-U Default Jumper Locations .................................................................... 7

6 TLV320AIC3268EVM-U EVM Schematics .............................................................................. 8

7 TLV320AIC3268EVM-U EVM Board Layout ........................................................................... 17

8 TLV320AIC3268EVM-U Bill of Materials ............................................................................... 19

9 Writing Scripts .............................................................................................................. 22

List of Figures

1 TLV320AIC3268EVM-U Top Board Photo .............................................................................. 3

2 TLV320AIC3268EVM-U Bottom Board Photo........................................................................... 3

3 Main Panel................................................................................................................... 5

4 Register Inspector Window ................................................................................................ 6

5 TLV320AIC3268RGC Block Diagram .................................................................................... 8

6 TAS1020BPFB USB Controller ........................................................................................... 9

7 Sample Rate Converters for ASIs....................................................................................... 10

8 GPIO and MCLK for AIC3268 ........................................................................................... 11

9 LDO Supplies and Analog Outputs ..................................................................................... 12

10 TLV320AIC3268 Schematic.............................................................................................. 13

11 Audio Connectors ......................................................................................................... 14

12 I2C Translation and Selection............................................................................................ 15

13 Breakout Board Connections ............................................................................................ 16

14 Top Xray View ............................................................................................................. 17

PurePath is a trademark of Texas Instruments.

Windows is a registered trademark of Microsoft Corporation.

SLAU564A–February 2014–Revised February 2014 TLV320AIC3268EVM-U Evaluation Module

Features

www.ti.com

15 Silkscreen Top............................................................................................................. 17

16 Silkscreen Bottom ......................................................................................................... 18

1 Features

• Full featured EVM with the TLV320AIC3268 Audio Codec

• USB connection to PC provides power, control and streaming audio for quick evaluation

• Easy-to-use PurePath Console 2 software provides graphical user interface to configure and control

AIC3268

2 Introduction

This specific evaluation module (EVM) is a programmable USB audio device that features the

TLV320AIC3268 Audio Codec with miniDSP.

2.1 Electrostatic Discharge Warning

Many of the components on the EVM are susceptible to damage by electrostatic discharge (ESD). Users

are advised to observe proper ESD handling precautions when unpacking and handling the EVM,

including the use of a grounded wrist strap at an approved ESD workstation.

CAUTION

Failure to observe ESD handling procedures can result in damage to EVM

components.

2TLV320AIC3268EVM-U Evaluation Module SLAU564A–February 2014–Revised February 2014

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Introduction

2.2 Unpacking the EVM

On opening the TLV320AIC3268EVM-U package, ensure that the following item is included:

• One TLV320AIC3268EVM-U board using one TLV320AIC3268 (Figure 1 and Figure 2)

If either of the board or the TLV320AIC3268 device is missing, contact the Texas Instruments Product

Information Center to inquire about a replacement.

Figure 1. TLV320AIC3268EVM-U Top Board Photo

Figure 2. TLV320AIC3268EVM-U Bottom Board Photo

SLAU564A–February 2014–Revised February 2014 TLV320AIC3268EVM-U Evaluation Module

Getting Started

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3 Getting Started

1. Request and download the PPC2 software located in the EVM product folder on the web.

2. Connect the EVM to USB port, LED lights LED1 and LED2 should illuminate once the EVM is detected

by Windows®PC. Also, in the Windows Device Manager, the EVM should be recognized as a USB

composite device, a USB audio device and an HID-compliant device.

3. Connect headphones to jack J7, labeled HP OUT.

4. Open PPC2 and in the Command Buffer Interface select Open.

5. Download the most up-to-date scripts from the product folder. Navigate to that folder and select script

1.1 and click Execute.

6. Play audio through any media tool. Make sure that the playback (and recording) device is USB-

AudioEVM in the Windows control panel.

• To adjust playback volume, open Sound in control panel, select the USB-AudioEVM device and

click Properties.

• Similarly, the other example configurations can be tried and sound can be recorded using the

microphone available on the board.

7. Install jumpers on the EVM as per the requirements to make the right signal connections.

4 PurePath Console 2 Software

4.1 Installation

1. Request and download the PPC2 software located in the TLV320AIC3268 product folder.

2. Open the self-extracting installation file, and extract contents to a known folder.

3. Install the software by double clicking the setup executable and follow the directions.

4. Connect the EVM to a USB port using a micro-USB cable and open PurePath Console 2. If prompted,

select the appropriate EVM name.

4TLV320AIC3268EVM-U Evaluation Module SLAU564A–February 2014–Revised February 2014

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PurePath Console 2 Software

4.2 Graphical User Interface (GUI)

4.2.1 Main panel window

The main panel, shown in Figure 3, provides direct access to the I2C settings of the AIC3268. On the

main panel, users can configure the registers through the single byte write and read or through the

Command Buffer Interface. The analog setup, digital setup, audio inputs, audio outputs, DRC, AGC, SAR

and headset detection can be configured through this interface.

The EVM status, which reflects the hardware connection of the EVM, is shown on the bottom left of the

main panel.

Figure 3. Main Panel

4.2.2 Typical Configuration

In the product folder there are example scripts for typical playback and record applications. These

configurations are used through the Command Buffer Interface.

4.2.3 I2C Logger

The Command Buffer Interface communicates with the TLV320AIC3268 using a simple scripting language

(described in Section 9). The TAS1020B USB controller handles all communication between the PC and

the codec. A script is loaded into the command buffer, either by loading a script file using the Open button

or by pasting text from the clipboard. Click Run to execute the command buffer.

To record the I2C communication between the PC and the device, there is an I2C Logger in the bottom

right of the GUI. The I2C Logger records all register writes sent to the codec when the Logging box is

checked. The recorded register values along with their page numbers are displayed in the I2C Logger

Window. Pressing the Clear button clears the content of the logger.

SLAU564A–February 2014–Revised February 2014 TLV320AIC3268EVM-U Evaluation Module

PurePath Console 2 Software

www.ti.com

4.2.4 Register Inspector

Figure 4. Register Inspector Window

The contents of the TLV320AIC3268 register map can be accessed through the Registers tab in PPC2.

The Page number control selects the page to be displayed in the register table. The register table contains

information such as register name, current register value and the bit field of the current register value.

Specify the page number when using the register inspector table. Once the page is specified, the register

value can then be inspected or changed by either entering the hex value of the register or changing the

corresponding bits for that register.

6TLV320AIC3268EVM-U Evaluation Module SLAU564A–February 2014–Revised February 2014

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TLV320AIC3268EVM-U Default Jumper Locations

5 TLV320AIC3268EVM-U Default Jumper Locations

Table 2 displays the default jumper location information.

Table 2. Default Jumper Locations

Jumper Position Jumper Position

JP1 Shorted JP31 Shorted

JP2 Shorted JP32 Shorted

JP3 Open JP33 1-2

JP4 2-3 JP34 1-2

JP5 2-3 JP35 Shorted

JP6 2-3 JP36 Shorted

JP7 2-3 JP37 1-2

JP8 2-3 JP38 2-3

JP9 2-3 JP39 Shorted

JP10 2-3 JP40 2-3

JP11 2-3 JP41 Shorted

JP12 2-3 JP42 Open

JP13 2-3 JP43 Open

JP14 2-3 JP44 2-3

JP15 2-3 JP45 Shorted

JP16 2-3 JP46 Open

JP17 2-3 JP47 Open

JP18 2-3 JP48 Shorted

JP19 2-3 JP49 Shorted

JP20 1-2 JP50 1-2

JP21 1-2 JP51 1-2

JP22 1-2 JP52 Open

JP23 1-2 JP53 Open

JP24 Shorted JP54 Open

JP25 Shorted JP55 Open

JP26 Shorted JP56 Open

JP27 Open JP57 Open

JP28 Open JP58 Open

JP29 Shorted JP59 Open

JP30 Shorted

SLAU564A–February 2014–Revised February 2014 TLV320AIC3268EVM-U Evaluation Module

L;DN

JOHN FEDAK IV

JANUARY 31, 2014

AIP013C_Schematic.sbkDESIGN LEAD

PAGE INFO:

FILENAME

DATE OF

DRAWN BY

SHEET

PCB REV

SCH REV

TLV320AIC3268RGC EVALUATION BOARD

I2S #3

AUDIO INTERFACE

I2S #2

AUDIO INTERFACE

I2S #1

AUDIO INTERFACE

OPTICAL

AUDIO OUTPUT

SRC #1

OPTICAL

AUDIO INPUT

ANALOG

OUTPUTS

USB CONTROLLER

I2C & SPI

CONTROL INTERFACE

CONTROLAUDIO

I2C

I2C & SPI

ASI#1

ASI#2

SRC4392

TAS1020B

6 WIRE

AUDIO I/F

SRC4392

I2C

OPTICAL

AUDIO INPUT

SRC #2 OPTICAL

AUDIO OUTPUT

ASI#3

ANALOG

INPUTS

TLV320AIC3268

QFN, Top View

3249

GPIO3

IOVDD1_33

MISO

SPI_SELECT

SDA_MOSI

GPIO5

I2C_ADDR/SCLK

SCL_SSZ

DVDD_18

IOVDD1_33

RESETZ

WCLK1

GPIO2

DOUT1

DIN1

GPIO1

WCLK2

DIN2

IOVDD2_33

DVDD_18

GPIO4

BCLK2

DOUT2

DVSS

DVDD_18

VBAT

SPK_V

SPKM

SVDD

SPKP

AVDD4_18

MICBIAS_EXT

MICBIAS

RECP

RECVDD_33

RECM

AVDD2_18

HPR

HVDD_18

HPL

HPVSS_SENSE

VNEG

CPFCM

CPFCP

CPVDD_18

LOL

LOR

MICBIAS_VDD

MICDET

AVDD1_18

IN4L

IN4R

VREF_SAR

VREF_AUDIO

IN1L_AUX1

IN1R_AUX2

IN3L

IN3R

IN2R

IN2L

AVDD_18

MCLK

BCLK1

VSS

BLOCK DIAGRAM

333435

363739 38404142434445464748

1 2 3456 7 8 9 10 11 12 13 14 15 16

TLV320AIC3268EVM-U EVM Schematics

www.ti.com

6 TLV320AIC3268EVM-U EVM Schematics

The schematics for the TLV320AIC3268EVM-U are shown in Figure 5 through Figure 12.

Figure 5. TLV320AIC3268RGC Block Diagram

8TLV320AIC3268EVM-U Evaluation Module SLAU564A–February 2014–Revised February 2014

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RESETz

TAS_MCLK

TAS_WCLK

TAS_MISO

TAS_MOSI

TAS_SSz

TAS_SCLK

I2S_ENABLE

TAS_SDA

TAS_BCLK

TAS_DIN

TAS_SCL

ASI_S0

ASI_S1

I2S3_DOUT_SRC

DUT_RESETz

TAS_DOUT

I2S2_DOUT_SRC

I2S1_DOUT

+5V

GND

GND GND

GND

GND GND

GND

1.50k

27.4

47pF/50V

100k

1.0uF/16V

0.1uF/16V

LVC1G126DBVR

VCC

GND

0.1uF/16V

1 2

0.1uF/50V

10k

R5 10k

0.1uF/16V

C10

0.1uF/50V

C11

1 2

10k

LED1

Yellow

649

LED2

Yellow

649

10k

R10

EE Program

JP2

0.1uF/16V

C13

R11

3.09k

1000pF/50V

C14

100pF/50V

C15

10k

R12

2.7k

R13 2.7k

R14

JP3

0.1uF/50V

C16

10k

R15

4.7k

R16

JP1

GND

4.7k

R17

L;DN

JOHN FEDAK IV

JANUARY 31, 2014

AIP013C_Schematic.sbkDESIGN LEAD

PAGE INFO:

FILENAME

DATE OF

DRAWN BY

SHEET

PCB REV

SCH REV

+3.3VIO

+3.3VIO +3.3VIO

+3.3VIO

FB5

220ohms/2A

FB6

220ohms/2A

Data+

GND

ID_NC

Data-

+3.3VIO

6.0MHz

Vcc

OUT

GND

+3.3VIO

GND

0.1uF/16V

+3.3VIO

GND

PowerPAD

24FC512-I/MF

GND

C12

0.1uF/16V

+3.3VIO

CBTLV3253DBQ

710

24FC512-I/MF

4 5

GND

+3.3VIO

GND

TAS1020BPFB

(ADC Data)

TAS1020B USB HOST ADAPTER

TLV320AIC3268RGC EVALUATION BOARD

USB CONTROLLER 2

(DAC Data)

DUT RESET

APP

PATCH

USB RESET

USB INPUT

13 14 15 16 17 18 19 20 21

23 24

13 14 15 16 17 18 19 20 21

23 24

404142434445464748

www.ti.com

TLV320AIC3268EVM-U EVM Schematics

Figure 6. TAS1020BPFB USB Controller

SLAU564A–February 2014–Revised February 2014 TLV320AIC3268EVM-U Evaluation Module

SRC1_RXCXO

SRC2_MCLK

SRC1_RDYz

TAS_SCL

TAS_SDA

RESETz

SRC1_MCLK

WCLK2

BCLK2

DIN2

SRC1_LOCKz

I2S2_DOUT_SRC

SRC2_RXCXO

SRC1_MCLK

SRC2_RDYz

SRC2_MCLK

DOUT3

WCLK3

BCLK3

DIN3

SRC2_LOCKz

TAS_DIN

TAS_WCLK

TAS_BCLK

DOUT2

WCLK1

BCLK1

DOUT1

DIN1

I2S1_DOUT

I2S3_DOUT_SRC

GND

GNDGND

GND

GND GND GND

GND

GNDGND

GND

GND GND

GND

GNDGND

GND

GND GND

GND

GNDGND

GND

GND GND

C17

0.1uF/16V

C18

0.1uF/16V

C19

10uF/6.3V

C20

0.1uF/16V

C21

10uF/6.3V

C22

0.1uF/16V

C23

0.1uF/16V

C24

10uF/6.3V

C25

0.1uF/16V

C26

0.1uF/16V

C27

0.1uF/16V

C28

0.1uF/16V

R18

10k

R19

R20

C29

0.1uF/16V

C30

0.1uF/16V

C31

10uF/6.3V

C32

0.1uF/16V

C33

10uF/6.3V

C34

0.1uF/16V

C35

0.1uF/16V

C36

10uF/6.3V

C37

0.1uF/16V

C38

0.1uF/16V

C39

0.1uF/16V

C40

0.1uF/16V

R21

10k

R22

R23

R24

4.7k

R25

10k

R26

4.7k

C41

10uF/6.3V

C42

10uF/6.3V

1.00k

R27

1.00k

R28

GND

GND GND

C43

0.1uF/16V

C44

0.1uF/16V

R29

10k

L;DN

JOHN FEDAK IV

JANUARY 31, 2014

AIP013C_Schematic.sbkDESIGN LEAD

PAGE INFO:

FILENAME

DATE OF

DRAWN BY

SHEET

PCB REV

SCH REV

+3.3VIO

GND

SPDIF-OUT1

PLT133/T10W

SHIELD

GND

INPUT

VCC

SPDIF-IN1

PLR135/T10

Case

GND

VCC

OUT

GND

SPDIF-IN2

PLR135/T10

Case

GND

VCC

OUT

GND

SPDIF-OUT2

PLT133/T10W

SHIELD

GND

INPUT

VCC

IOVD1

+1.8VIO

IOVD2

+1.8VIO

IOVD1

+3.3VIO

TXS0104EPWR

U13

VCCB

VCCA

8 7

TXS0104EPWR

VCCB

VCCA

U14

TXS0104EPWR

VCCB

VCCA

(DAC Data)

Connect Pin44 to Pin10,

pin 10 to ground plane

SRC #1

SRC4392IPFBR

i2c: 1110 000

U10

Connect Pin44 to Pin10,

pin 10 to ground plane

SRC4392IPFBR

SRC #2

i2c: 1110 001

TLV320AIC3268RGC EVALUATION BOARD

DATA, SAMPLE RATE CONVERTER

Use same IOVD for IOVD1 and IOVD2.

BCLK3 -> GPIO2 (IOVD1)

WCLK3 -> GPIO1 (IOVD1)

DIN3 -> GPIO3 (IOVD2)

DOUT3 -> GPIO4 (IOVD2)

SAMPLE RATE CONVERTERS FOR ASIs

GND

TLV320AIC3268EVM-U EVM Schematics

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Figure 7. Sample Rate Converters for ASIs

10 TLV320AIC3268EVM-U Evaluation Module SLAU564A–February 2014–Revised February 2014

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