/technologies/fpga-group/b/blog/posts/the-art-of-fpga-design-season-2-post-23Implementing the First and Second Order All Pass Sections with DSP Primitives We are almost there now. We have the LWDF IIR filter architecture, which is much better then the classic biquad cascade: It is made out of two parallel all pass path...en-USTelligent Community 12