User`s guide

Control System Parts 6

-13

band ripple is 0.1 dB and the minimum stop band attenuation is

50 dB. This will produce a PSpice A/D netlist declaration like

this:

EBANDPASS 5 0 CHEBYSHEV

+ {V(10)} = BP 800 1.2K 2K 3K .1dB 50dB

BANDREJ

The BANDREJ part is characterized by four cutoff frequencies.

The attenuation values, RIPPLE and STOP, define the

maximum allowable attenuation in the pass band, and the

minimum required attenuation in the stop band, respectively.

The BANDREJ part provides one input and one output.

Figure 6-4 shows an example of a BANDREJ filter device. This

is a band reject (or “notch”) filter with the stop band between 1.2

kHz and 2 kHz, and pass bands below 800 Hz and above 3 kHz.

The pass band ripple is 0.1 dB and the minimum stop band

attenuation is 50 dB. This will produce a PSpice A/D netlist

declaration like this:

ENOTCH 5 0 CHEBYSHEV {V(10)} = BR 1.2K 800 3K 2K .1dB 50dB

RIPPLE is the pass band ripple in dB

STOP is the stop band attenuation in dB

F0, F1,

F2, F3

are the cutoff frequencies

ure 6-4

BANDREJ Filter

Part Example