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lock-in #60

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jordens opened this issue Nov 20, 2019 · 1 comment
Closed

lock-in #60

jordens opened this issue Nov 20, 2019 · 1 comment
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enhancement New feature or request

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@jordens
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jordens commented Nov 20, 2019 •
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  • Should work well to >= 100 kHz modulation frequency
  • Modulation styles with varying complexity:
    • external modulation and a soft PLL
    • the digital input and timed ADC DMA sampling or time tagging of samples/blocks
    • internal modulation on a separate DAC channel
    • internal modulation on the PI-controlled DAC channel
    • internal modulation on a digital output
  • 1f/2f, adjustable phase
  • re-use existing IIR filter

Old prototype code:
https://github.com/quartiq/queenmod

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@jordens jordens added the enhancement New feature or request label Nov 20, 2019
@jordens jordens mentioned this issue Feb 3, 2020
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@jordens jordens mentioned this issue Oct 7, 2020
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@matthuszagh matthuszagh mentioned this issue Nov 19, 2020
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@jordens jordens mentioned this issue Dec 14, 2020
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@ryan-summers ryan-summers mentioned this issue Jan 26, 2021
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@jordens
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jordens commented Feb 1, 2021 •
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Implemented. Performance looks really good.

@jordens jordens closed this as completed Feb 1, 2021
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