Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsDev KitsPCB design board

User's Guide

SLAU307–February 2010

ACEV-1A EVM

This user’s guide describes the operation of the Texas Instruments Codec Control software and the

AIC3110/AIC3100/AIC3120 EVM. Codec Control provides a graphical user interface for supported TI

audio codecs. The software is compatible with Microsoft Windows XP, Vista and Windows™ 7.

The information in a caution or a warning is provided for your protection. Read each caution and warning

carefully.

Contents

1 Introduction .................................................................................................................. 2

2 Control Software ............................................................................................................ 2

2.1 Control Software ................................................................................................... 2

2.2 Installation ........................................................................................................... 2

2.3 Concepts ............................................................................................................ 2

2.4 EVM Window ....................................................................................................... 3

2.5 Dialogs and Active Objects ....................................................................................... 4

2.6 EVM Applications .................................................................................................. 9

2.7 Firmware Update ................................................................................................. 10

2.8 Script Syntax ...................................................................................................... 11

3 AIC3110/AIC3100/AIC3120 EVM ....................................................................................... 12

3.1 Overview ........................................................................................................... 12

3.2 Getting Started .................................................................................................... 12

3.3 EVM Applications ................................................................................................. 12

3.4 Jumpers, Connectors, Test ..................................................................................... 13

4 EVM Schematics .......................................................................................................... 14

List of Figures

1 EVM Window ................................................................................................................ 3

2 Initialization Script........................................................................................................... 5

3 Command Dialog............................................................................................................ 6

4 Register Inspector........................................................................................................... 7

5 DAC Filter .................................................................................................................... 8

6 Filter Coefficients............................................................................................................ 9

7 EVM Applications.......................................................................................................... 10

I2C, I2S are trademarks of Koninklijke Philips Electronics NV.

Windows is a trademark of Microsoft Corporation.

SLAU307–February 2010 ACEV-1A EVM

Submit Documentation Feedback

Summary of content (18 pages)

PAGE 1
User's Guide SLAU307 – February 2010 ACEV-1A EVM This user’s guide describes the operation of the Texas Instruments Codec Control software and the AIC3110/AIC3100/AIC3120 EVM. Codec Control provides a graphical user interface for supported TI audio codecs. The software is compatible with Microsoft Windows XP, Vista and Windows™ 7. The information in a caution or a warning is provided for your protection. Read each caution and warning carefully. 1 2 3 4 Contents Introduction ...........................
PAGE 2
Introduction 1 www.ti.com Introduction The Codec Control software is intended to facilitate evaluation of TI audio codecs. It includes a script interpreter, a block-diagram based graphical user interface, a register inspector and supplemental features (for example digital filter calculator) depending on codec capabilities. The AIC3110/AIC3100/AIC3120 EVM works together with the Codec Control software. It connects to a PC via USB and enumerates as a USB class audio device.
PAGE 3
Control Software www.ti.com Simulation mode is only available, if no TI audio codec EVM is attached to the PC. Choose File→New EVM simulation… and select an EVM from the list of supported TI audio codec EVMs. 2.4 EVM Window Figure 1.
PAGE 4
Control Software www.ti.com Audio signal paths (both digital and analog) will change color from black once they are activated via switches. This feature visualizes all audio paths and immediately highlights if a path is enabled. 2.4.1 Using Active Objects Moving the mouse pointer over an active object will light up the active object (the color of the object turns red).
PAGE 5
Control Software www.ti.com Figure 2. Initialization Script Click the Run button to run the script again. For further information about the script syntax, see Script Syntax. 2.5.2 Command Dialog Open the command dialog (View→Command…) to write, edit, load, save and run command scripts. Command scripts are text files that contain commands to communicate with the TI audio codec. The syntax is described in Script Syntax.
PAGE 6
Control Software www.ti.com Figure 3. Command Dialog • • • • The main area of the command dialog is the command buffer (editable text) which contains the command script. To run the command script, click the Run button. The smaller read only text area on the right side of the command dialog displays control data read from the TI audio codec. The Clear button clears the Read Data field. The one line text edit field on the left bottom allows single command execution.
PAGE 7
Control Software www.ti.com Figure 4. Register Inspector The register inspector displays the content of the TI audio codec registers. To trigger reading the content of one page, click the Refresh button. • The Page edit field selects the page to be displayed. • The addr column shows the address of the registers within the selected page in decimal notation. • The description column contains a description for each register. If the register has no function assigned, it is declared Reserved.
PAGE 8
Control Software www.ti.com Figure 5. DAC Filter • • • • • • • • This tool displays the combined frequency response, the combined phase response and the individual frequency response of multiple digital biquad filters (depending on the capabilities of the TI audio codec). Solid lines show the frequency response. The dashed line shows the combined phase response. Individual frequency response is enabled by checking the right check box in the Enable column.
PAGE 9
Control Software www.ti.com coefficients: Figure 6. Filter Coefficients The coefficients may be used for a customer’s filter implementation. The format is compatible with the TI audio codec that was detected by the Codec Control software. 2.6 EVM Applications Some TI audio codec EVMs contain an EEPROM that can store EVM applications, for example: • Initialization scripts • Parameter patch scripts The CodecControl software contains a browser to access the applications stored in the EEPROM.
PAGE 10
Control Software www.ti.com Figure 7. EVM Applications Applications stored in the EEPROM are listed in a tree view. To add an application, choose Add Application from the context menu (right mouse click within the tree view). To change the name of an application, select the application, single click on the application and type the new name. Each application owns one or several scripts. The scripts consist of a sequence of commands that program the TI audio codec (or EVM components).
PAGE 11
Control Software www.ti.com 2.8 Script Syntax A script is a text file that contains data to send to a device. Each line in a script file is one command. No provision is made for extending lines beyond one line, except for the > command. A line is terminated by a carriage return. The first character of a line is the command.
PAGE 12
AIC3110/AIC3100/AIC3120 EVM www.ti.com [optional timeout] specifies how long (milliseconds) the command interpreter will poll the device if the data doesn’t match the 3 AIC3110/AIC3100/AIC3120 EVM This chapter contains information about the AIC3110/AIC3100/AIC3120 EVM 3.
PAGE 13
AIC3110/AIC3100/AIC3120 EVM www.ti.com A simple example is to program the AIC3110/AIC3100/AIC3120 initialization script from the CodecControl software to the boot application. Afterwards, the EVM acts as a USB sound card without requiring the CodecControl software. 3.4 Jumpers, Connectors, Test W1: W2: W3: W4: W5: W6: W7: W8: 1-2: Select analog volume control potentiometer. 2-3: Select microphone detection. insert to apply right channel mic-bias voltage to microphone connector.
PAGE 14
EVM Schematics 4 EVM Schematics 14 ACEV-1A EVM www.ti.
PAGE 15
ACEV-1B_RHB_USB_EVM_REVB THIS SCHEMATIC PERTAINS TO THE FOLLOWING DEVICES EEPROM +3.3V C10 U2 mfg: MICROCHIP p/n: 24FC512-I/SM AIC3111 - (STEREO CLASS-D) EDGE NUMBER: 6511728 AIC3120 - (MONO CLASS-D) EDGE NUMBER: 6511729 GND AIC3110 - (STEREO CLASS-D) EDGE NUMBER: 6511730 1 8 2 7 3 6 4 5 0.1ufd/6.3V 0402 GND +3.3V GND R8 2.7K/5% 0603 SOIC8-SM 512K R9 TP1 2.7K/5% 0603 White AIC3100 - (STEREO CLASS-D) EDGE NUMBER: 6511731 SCL I2C SDA White +3.
PAGE 16
ACEV-1B_RHB_USB_EVM_REVB MICBIAS R16 R17 2.20K 0603 2.20K 0603 MICDET W2 W3 1 1 2 2 C18 LEFT R14 W1 48.9K 0603 RIGHT C19 2 6 MIC1RP 3 5 0.47ufd/16V 0603 1 2 Shield U4 - OPTIONS DEVICE UNDER TEST (DUT) +3.3V MIC1LP MIC IN VR1 50K 3309P 3 0.47ufd/16V 0603 4 AIC3111 - (STEREO CLASS-D) C17 MIC1LM 1 J2 AIC3120 - (MONO CLASS-D) mfg: CUI STACK p/n: SJ-43516-SMT AIC3110 - (STEREO CLASS-D) AVDD GND R15 0.22ufd/10V 0603 0.0 0603 C20 GND GND 10ufd/6.
PAGE 17
ACEV-1B_RHB_USB_EVM_REVB POWER SUPPLY +5.0V USB INPUT +1.8V OUTPUT +5V +1.8V U5 TPS73618DBVT 1 5 2 ANALOG INTERFACE CONNECTOR 3 4 SOT230DBV5 1.8V/400mA C28 C29 10ufd/16V 0805 0.1ufd/50V 0603 GND R20 GND 10ufd/16V 0805 GND V_ENABLE POWER SUPPLY +5.0V USB INPUT +3.3V OUTPUT +5V +3.3V U6 TPS73633DBVT 1 5 2 3 C31 4 SOT230DBV5 3.3V/400mA C32 10ufd/16V 0805 0.
PAGE 18
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.