The filters of FIGURE 4(a) to (c) where designed using a commercial software package (http://focus.ti.com/docs/toolsw/folders/print/filterpro.html)
Write a report (of approximately 750 words) that discusses and compares the design of each filter in terms of their performance, circuit topology, application and any other relevant characteristics. You may for example attempt to relate the choice of component values to the filters performance
The Attempt at a Solution
So far I have found that each of the circuits contain both a 1st order and second order filter cascaded to form a 3rd order filter. I am now looking at the graphs shown to analyse the data such as frequency response / phase response of each circuit.