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采用 PWM DAC 的语音频带音频回放参考设计

2015-3-9 17:31:10 3125

0 `描述 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. 特性 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 Voice Band Audio Playback Using a PWM DAC Design Guide.pdf (3.6 MB, 下载次数: 11 ) Voice Band Audio Playback Using a PWM DAC Schematic.pdf (408.54 KB, 下载次数: 3 ) Voice Band Audio Playback Using a PWM DAC Bill of Materials (BOM).pdf (215.92 KB, 下载次数: 3 ) tidrd62.zip (354.11 KB, 下载次数: 4 ) tidc940.zip (297.41 KB, 下载次数: 2 ) tidrd61.zip (468.68 KB, 下载次数: 2 ) ` 0
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