DESIGN ANALOG RC-ACTIVE 2ND-ORDER AUDIO LOW PASS FILTER (LPF)

Abstract

The electronic filters are considered as a very impartment element of electronic circuits . These filters have a basic rule in electronic and communication devices and systems.

         Using these filters  , the correct decisions can be taken depending on the applications which it have been used for it. These decision which have been done may have relations with frequency, amplitude, type of signal and the function of applications. In this research RC-active 2nd-order Low Pass Filter (LPF) is designed for low frequency (audio frequency) passing. This filter is designed and simulated using EWB technique. The simulation results obtained from implementation this designed filter is nearly identical with the results obtained from theoretical analysis approximately. These results mean that the designed filter is passed the test successfully