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Altera_Forum's avatar
Altera_Forum
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16 years ago

Output amplitute from an NCO

Am i right in thinking that the output amplitutde from the NCO is not constant over different frequencies?
Altera_Forum's avatar
Altera_Forum
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16 years ago

The NCO IP has a frequency independent amplitude. Have you an idea, how it should perform different? I don't.

If you're referring to a particular hardware platform, e.g. a development board, it would be a good idea to mention the board and the frequency range of your test, too. If it's e.g. a DSP board or a Terasic ADDA board, the have a transformer coupled output with an about 400 kHz to 1 MHz lower edge, it can be easily seen from schematic (and even by looking at the board, if you miss the schematic).