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Altera_Forum
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18 years ago

DSP/Interpolation/FIR/Spectrum... =]

Hi all! Here's a brief description of my application: -> I'm using a Stratix II FPGA to generate data samples and send them to an external DAC. -> Data is generated at rates from 1MSPS to 3...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

A classic DSP problem......

Have a look at Lagrange interpolators. I think these may only work when you need to change rates by a small amount though.

From my experience if CICs dont work then you have to just go up and down with lots of FIRs until you get your performance required, or change the spec.