Voice Band Audio Playback Using a PWM DAC

(ACTIVE) TIDM-VOICEBANDAUDIO

Description & Features

Technical Documents

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Description

Low cost audio output based upon timer generating PWM & external low-pass filter with amplifier stages for either headphone or speaker. Audio data is stored in an on-board SPI Flash. A PC GUI with launchpad passthrough code is provided to load SPI Flash with audio data.

Features
  • Easily integrate code into existing systems (<2kB Flash needed)
  • BoosterPack design for easy LaunchPad use
  • 8 bit PWM DAC playback with low-cost filtering
  • Multiple playback frequencies supported
  • External SPI Flash storage for sound files
  • SPI Flash loading software included
  • Headphone jack or speaker output with volume control

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




TI Devices (7)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
MSP430F5529  16-Bit Ultra-Low-Power Microcontroller, 128KB Flash, 8KB RAM, USB, 12Bit ADC, 2 USCIs, 32Bit HW MPY  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
MSP430FG6425  MSP430FG642x Mixed-Signal Microcontroller  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
MSP430FG6426  MSP430FG642x Mixed-Signal Microcontroller  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
MSP430FG6625  MSP430FG662x Mixed-Signal Microcontroller  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
MSP430FG6626  MSP430FG662x Mixed-Signal Microcontroller  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
TPA301  350-mW Mono Class-AB Audio Amplifier  Low-Power Audio Amplifiers (<10W)  Sample & Buy View Design Kits & Evaluation Modules
TS3A24159  0.3-Ohm 2-Channel SPDT Bidirection Switch  Switches and Multiplexers  Sample & Buy Not Available

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 3942 24 Feb 2016 1,367
Design files (5)
Title Abstract Type Size (KB) Date Views
PDF 215 03 Mar 2015 54
PDF 408 03 Mar 2015 732
ZIP 354 03 Mar 2015 127
ZIP 468 03 Mar 2015 87
ZIP 297 03 Mar 2015 213
Related Tools & Software

Software (1)




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