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Portable Audio Demo Overview

Portable Audio Demo Overview. 12/2/08. Portable Audio Demo. AIC3104 TPA2016D2 TPA6140A2 One Simple GUI. Revision B Photo. Highlights for Demo Board. Combine the latest-greatest PAA parts with a TI CODEC. Have one unified GUI with Simplicity/Ease-of-Use as the top priority.

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Portable Audio Demo Overview

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  1. Portable Audio Demo Overview 12/2/08

  2. Portable Audio Demo • AIC3104 • TPA2016D2 • TPA6140A2 • One Simple GUI Revision B Photo

  3. Highlights for Demo Board • Combine the latest-greatest PAA parts with a TI CODEC. • Have one unified GUI with Simplicity/Ease-of-Use as the top priority. • Demonstrate that the TPA2016 and TPA6140 will work with a Sigma-Delta source. • USB-Powered. No power supply required. • USB to I2C/I2S included – No MOD-EVM required. • Board is 2-Layers. • TAS1020B is placed on the back out of sight. • Primary input is USB digital audio, but there is also an analog input mode for analog sources. Input mode is changed with the click of a button on the GUI.

  4. Potential Products • Cell Phone • Portable Navigation • Notebook PC • Portable Gaming • PC Speakers

  5. Simplified Block Diagram

  6. Overview of Featured TI Devices • TPA2016D2 – Stereo Class-D Amplifer with Automatic Gain Control • TPA6140A2 – High-Efficiency Class-G Headphone Amplifier • TLV320AIC3104 – Low Cost CODEC • TAS1020B – USB to I2S Audio

  7. Previous Setup: Mod-EVM with TPA2016 & TPA6140

  8. New Setup: Portable Audio Demo EVM • I2C Internal to EVM • USB Power Throughout • Small Size

  9. Portable Audio Demo GUI • Concept: • Simplest GUI possible • Enable/Disable + Volume Control • Compression On/Off Button for TPA2016D2 • Analog/Digital Input • I2C Status • Advanced Sub-panels for the Adventurous: • User Able to Adjust Extra Settings (e.g. Noise Gate, Attack Time, DAC Datapath) • Automatic Updates Between Main GUI and Sub-panels

  10. AIC3104 Analog Bypass • Allows User to Plug In Analog Audio Source to EVM (e.g. mp3 Player) • User Can Play Digital / Analog Simultaneously and Separately • Ease of Use: User Pushes One Button

  11. File Menu • I2C Interface : Read/Write I2C Data to AIC3104, TPA2016 & TPA6140 • Script Loader: Automatically Load Pre-written Scripts • Help: “About” Section

  12. Sample Script : Initialize **Note: Formatted in Hex Values, Tab Delimited

  13. Advanced SubPanel: AIC3104 • Showed only the features relevant to connecting the DAC to external amps • Utilized specific features of AIC3104: - I2C Volume Control - Line-Out/Analog MUX - DAC Datapath/DAC Power - Line Amp Power/Mute • Focus on small GUI size, ease of use

  14. Advanced Subpanels: TPA2016D2 & TPA6140A2 Same as production versions for individual parts

  15. TPA2016D2 Volume Control • Made use of “Volume Macro” included with latest version of TPA2016D2 GUI. • Volume Control can seem confusing when the TPA2016D2 seems to compensate for DAC volume changes • This system allows the user to “Dial-in” on this concept.

  16. Conclusion • Easy to Use • Portable Audio Demo Displays Entire Solution Featuring AIC3104, TPA2016 & TPA6140 • Solid Portable Audio Performance • USB Power Throughout • Sigma-Delta Sourcing and TPA2016, TPA6140 Verified • TPA6140 No RC Filter • Analog/Digital Functionality

  17. GUI Software Download ftp://ftp.ti.com/pub/PAA/PortableAudioDemo

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