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Altera_Forum
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11 years ago

FIR and CIC MegaCores Altogether

Hi, I have instantiated FIR II MegaCore as a Pulse-Shaping and upsampling by 8 filter, now I want to use CIC MegaCore after FIR to interpolate the signal... I didn't use Back Pressure feature in...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Before committing yourself further may I ask why you don'y use RRC for all your interpolation without the need for CIC.

You will need higher taps but interpolation plus clk ratio will help reduce mults considerably.