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Altera_Forum's avatar
Altera_Forum
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17 years ago

data conversion HSMC: max. DAC sampling rate?

Hi, I'm trying to use the DAC (on the Stratix III DSP Kit) with a sampling rate of 240MHz, but the signals at the chip are very bad and it seems that the DAC samples the data incorrectly and t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

You may try this simple test first(to exclude your data being the cause):

inject two alternating + values directly at 240MHz and check that you get correct output (e.g. two lines spectrum at +120MHz).

I will take it that your data is at 240MHz(sample rate)