As we know, the number 1 LPF in schematic is the well known circuit. 4 c5 y! `; T# r x% }9 w, `3 F " f" T4 A; i" a+ Q But some application is like the number 2 LPF in schematic. Any commetions about it ? 6 u" e2 H( q- \7 A3 E3 u% w$ z% ^1 G( v+ s1 n. |
Any discussion is appreciated.