Posted by Earl Geddes [ 69.209.157.233 ] on June 06, 2005 at 13:24:16:

In Reply to: Parallel Notch Filter Question posted by FredT on May 31, 2005 at 10:15:03:

All simple filter applications like this assume a very low input impedance and a very high output impedance when compared to the impedances of the circuit,. This is true no matter what type of filter it is. When the input and output do not abide by these rules - which is almost all of the time - then the loads become part of the filter and it must be analyzed in a more complex manner.

Replies: