Digital Filter Option Offers Both FIR And IIR Filters LeCroy Application Brief No. LAB WM763
Digital Filtering
Digital Filter Option Offers Both FIR And IIR Filters
F3) responses of a Butterworth band pass filter. The user can
The Digital Filter option package
(DFP2) for the WaveMaster
series of oscilloscopes broadens
the offering of filters of the older
DFP option by including infinite
impulse response (IIR) filters in
addition to finite impulse re-
sponse (FIR) filters. IIR filters
allow users to select digital filter
types identical in response to
well known analog filters. As
shown in figure 1, the user can
select Butterworth, Bessel, Che-
byshev, or Inverse Chebyshev
filter configurations. The trace
displays show the impulse re-
……
