Hot!Ring modulator DDS sine generation whine in output from DAC MCP4822

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Nikolay_Po
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Re: Ring modulator DDS sine generation whine in output from DAC MCP4822 2017/09/17 03:56:06 (permalink)
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Why not to try libq.h with it's _Q15sinePi() function? It will produce correct sine value for every sample at 16-bit precision.
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Trackhappy
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Re: Ring modulator DDS sine generation whine in output from DAC MCP4822 2017/09/17 13:51:19 (permalink)
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Thank you Nikolay. I have found your post on the subject and will have a go. Without your guidance I would not have even thought to look for such a thing. I have the main project back on track somewhat now, although my changes have broken the modulation component in the process. I'll sort that out and report back so people can see the answer.
This is tough stuff for a newbie, but I am enjoying the challenge.
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