Forum Discussion
Altera_Forum
Honored Contributor
10 years agoDC 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...
Altera_Forum
Honored Contributor
10 years agoAre you probing the analong signal directly on DAC output pin?
I guess that data conversion daughterboard is supposed to generate audio outputs which are usually AC coupled; if you test the signal after the final audio stage you'd get waveforms similar to those you describe