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Altera_Forum's avatar
Altera_Forum
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14 years ago

DAC/ADC not at full range.

I am using the THDB_ADA daughter card and the DE2-115. I am feeding an NCO output (2Vpp sine wave) from the DAC straight into the ADC through an SMA cable. However, the values registered by the ADC o...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

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I am using the THDB_ADA daughter card and the DE2-115. I am feeding an NCO output (2Vpp sine wave) from the DAC straight into the ADC through an SMA cable. However, the values registered by the ADC only indicate an input value of ~730mV peak to peak, when it should be at full range. Any ideas on what's going on?

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Do you used the Cyclone III with the Daugtercard HSMC? :rolleyes: