EFM32 AN0022 - Digital to Analog Converter Application Note
This application note describes how to use the EFM32 Digital to Analog Converter.The features of the Digital to Analog Converter are described, and the software examples include both a signal generator and audio playback using Direct Memory Access.
This application note includes:
• This PDF document
• Source files (zip)
• Example C-code
• Multiple IDE projects
The EFM32 DAC is a 12 bit rail to rail Digital to Analog converter with either two single ended outputs,or one differential output. The maximum conversion rate is 500 ksamples/s at 12 bits resolution. One of the DAC's internal band gap references or the VDD voltage can be selected as reference. The DAC may be used for a number of different applications such as sensor interfaces, voltage generation or sound/signal output.
This application note shows general operation and usage of the DAC. In addition the sine generator mode is described and the different conversion modes are explained. The software examples include both an advanced signal generator and audio playback that both use DMA (Direct Memory Access) and the PRS (Peripheral Reflex System).
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2013-09-16 |
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Rev1.10 |
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AN0022 |
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788 KB |
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