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Altera_Forum
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10 years ago

DC output altera data conversion card

Hi All, I using the card cyclone iii fpga development kit starter (https://www.altera.com/products/boards_and_kits/dev-kits/altera/kit-cyc3-starter.html) with the cyclone iii data conversion hs...
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Altera_Forum
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10 years ago

The data conversion card uses output transformers which act as a band pass filter. And DC component to a signal will be removed. If the frequency of the square wave is too low it will appear as DC for some of the time so the transformers will saturate and you will get a strange sort of sawtooth.

There is no way of producing DC from these boards. Nor any way of producing a low frequency square wave.