Texas-instruments TLV320DAC23 User Manual

TLV320AIC23 EVM2Evaluation Platform for the TLV320AIC23 StereoAudio CODEC and TLV320DAC23 Stereo DACFebruary 2002 DAV Digital Audio/SpeakerUser’s Guid

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2-1Quick Start-Up Quick Start-UpThis section explains to the user how to set up the TLV320AIC23 EVM2 quicklyand hear audio using digital loopback.1) S

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3-1Theory of Operation Theory of OperationThis section provides a comprehensive description and explanation of thevarious features of the TLV320AIC23

3-2Figure 3–1. TLV320AIC23 EVM2 Parts Location DiagramHeadphoneLeft InJ2J2R J2LU1Y1J3J1LJ1J1RJ5Master CLKINJ7PJ1J4Left OutRight OutLine OutMIcRight In

Photographs of EVM3-3Theory of Operation3.1 Photographs of EVMFigure 3–2. TLV320AIC23 EVM2 Top View

Photographs of EVM3-4Figure 3–3. TLV320AIC23 EVM2 Bottom View

Photographs of EVM3-5Theory of OperationFigure 3–4. Parallel Port Interface Board Top ViewFigure 3–5. Parallel Port Interface Board Bottom View

Jumper Settings3-63.2 Jumper SettingsThere are two jumpers on the EVM.- JP1 is used to select the communication mode of the EVM. Position 1–2sets the

Digital I/O3-7Theory of Operation3.5 Digital I/OA protected header, J7, is available for interfacing with external digital I/O. Twopower sources, 5 V

IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,enhancements, improvemen

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4-1Software SoftwareThis section describes the use of the DASCCT_AIC23 software GUI interfaceto control the TLV320AIC23 EVM2 board. Pictures of the va

DASCCT_AIC23 Installation4-24.1 DASCCT_AIC23 InstallationBefore running the DASCCT_AIC23 software, the parallel port must beconfigured for enhanced pa

DASCCT_AIC23 Installation4-3SoftwareFigure 4–1. AIC23/DAC23 EVM2 Connection DiagramSpeakersAnalog InAIC23/DAC23 EVMI2C ConnectorAudio OutPCCD PlayerPa

DASCCT_AIC23 Start-Up4-44.2 DASCCT_AIC23 Start-Up1) Execute the software file named DASCCT_AIC23.exe from the directorywhere the software was loaded.2

Main Panel4-5Software4.4.4 Message AreaDirectly below the Master and Slave radio buttons on the left side of the mainpanel is a message area. Short te

Main Panel4-64.4.9 I2C Adjust ButtonPressing this button opens a panel that allows adjustment of the timing periodused for I2C communications between

I2C Adjust4-7Software4.4.18 Clock Select ButtonClicking the Clock Select button opens a panel that allows selection of masterclock speed and ADC and D

I2C Adjust4-84.6 View RegistersThe registers panel, shown in Figure 4–4, displays the bits for 10 registers,where the user can either view or change t

I2C Adjust4-9SoftwareFigure 4–5. Mode Files

EVM IMPORTANT NOTICETexas Instruments (TI) provides the enclosed product(s) under the following conditions:This evaluation kit being sold by TI is int

L Vol (HeadPhone) Register4-104.6.2 L Vol (Line Input) RegisterAddress: 0000000D4–D0 set the left line input volume. D8 sets simultaneous right/leftv

Audio (Digital) Register4-11SoftwareD7–D6 set the sidetone attenuation (00 = –6 dB, 01 = –9 dB, 10 = –12 dB, 11 = –15 dB). D5 sets sidetone enable (0

Power Down Register4-12The Apply button sends the current bit values shown on the Analog Controlpanel to the Audio (Digital) register section of the r

Sampling Rate Register4-13SoftwareThe Apply button sends the current bit values shown on the Analog Controlpanel to the Audio (Format) register sectio

Interface Activate Register4-14Figure 4–9. Clock Setup4.6.12 Interface Activate RegisterAddress: 0001001D0 activates the digital interface (0 = inacti

5-1I2C Error Messages I2C Error MessagesThe error messages are only visible during error conditions. The errormessages are located just above the RESE

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6-1Kit Contents Kit ContentsThis chapter contains a list of the contents of the TLV320AIC23 EVM2 kit anda bill of materials for the TLV320AIC23 EVM2 b

TLV320AIC23 EVM2 Kit Contents6-26.1 TLV320AIC23 EVM2 Kit ContentsTLV320AIC23 EVM2 is shipped with the following:1) TLV320AIC23 EVM2 evaluation module2

Bill of Materials6-3Kit Contents6.2 Bill of MaterialsDescription Qty. Part Number Mfr. Ref. Des.AND Gate, Single 2–Input Positive 1 SN74AHC1G08DBVR Te

EVM WARNINGS AND RESTRICTIONSIt is important to operate this EVM within the input voltage range of 0–1.5 V and the outputvoltage range of 0 V and 3.6

Bill of Materials6-4Description Ref. Des.Mfr.Part NumberQty.RES 3.3 OHM 1/8W 5% SMD 1206 9 ERJ–8RQJ3R3V Panasonic R11, R12, R13, R14,R15, R16, R19, R2

Appendix ACircuit Card and SchematicThis appendix contains the following items for the TLV320AIC23 EVM2, in theorder listed:1) Top silkscreen2) Copper

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Related Documentation From Texas Instrumentsv PrefaceRead This FirstAbout This ManualThis user’s guide describes the setup and operation of the TLV32

TrademarksviJ of part 15 of FCC rules, which are designed to provide reasonable protectionagainst radio frequency interference. Operation of this equi

Contentsvii Contents1 Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contentsviii4.4.16 Format Control Button 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.17 Nor

1-1Introduction IntroductionThe TLV320AIC23 EVM2 is designed to demonstrate the TLV320AIC23 codecor TLV320DAC23 DAC. With the use of the DAREF106R2 pa