Reference Designs
Voice Band Audio Playback Using a PWM DAC
Texas Instruments
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 (BoosterPack design for easy LaunchPad use8 bit PWM DAC playback with low-cost filteringMultiple playback frequencies supportedExternal SPI Flash storage for sound filesSPI Flash loading software includedHeadphone jack or speaker output with volume control
Product Categories
- Arm-based microcontrollers