Organize Computation for a 2.5 Gsps Data Stream in 2 Phases - 2023.2 English

Vitis Tutorials: AI Engine

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2023.2 English

For a single-rate filter, a 2.5 Gsps input sample rate also means a 2.5 Gsps output sample rate. Because the input stream is separated into two (even, odd) streams, the output stream must be split the same way.

Take a look at how y0 is computed:


If the data stream is split into two phases, it can be seen that the coefficients also have to be split into two phases.


Also take a look at how y2 is computed: