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lp2bs.m
function [at,bt,ct,dt] = lp2bs(a,b,c,d,wo,bw)
%LP2BS Lowpass to bandstop analog filter transformation.
% [NUMT,DENT] = LP2BS(NUM,DEN,Wo,Bw) transforms the lowpass filter
% prototype NUM(s)/DEN(
lp2hp.m
function [at,bt,ct,dt] = lp2hp(a,b,c,d,wo)
%LP2HP Lowpass to highpass analog filter transformation.
% [NUMT,DENT] = LP2HP(NUM,DEN,Wo) transforms the lowpass filter
% prototype NUM(s)/DEN(s) wit
ex3052.m
wp=0.2*pi;ws=0.3*pi;Rp=1;As=15;
T=1;
OmegaP=wp/T;
OmegaS=ws/T;
ep=sqrt(10^(Rp/10)-1);
Ripple=sqrt(1/(1+ep*ep));
Attn=1/(10^(As/20));
% Analog Butterworth Prototype Filter Calculation:
[cs,ds]=
ex3054.m
wp=0.2*pi;ws=0.3*pi;Rp=1;As=15;
T=1;
OmegaP=wp*T;
OmegaS=ws*T;
ep=sqrt(10^(Rp/10)-1);
Ripple=sqrt(1/(1+ep*ep));
Attn=1/(10^(As/20)); % Stopband Attenuation
% Analog Butterworth Prototype Filt
ex3053.m
wp=0.2*pi;ws=0.3*pi;Rp=1;As=15;
T=1;
OmegaP=wp*T;
OmegaS=ws*T;
ep=sqrt(10^(Rp/10)-1);
Ripple=sqrt(1/(1+ep*ep));
Attn=1/(10^(As/20)); % Stopband Attenuation
% Analog Butterworth Prototype Filt
drawskoa.m
function dr = drawskoa(x0 ,y0 ,dx ,ds ,F ,R)
% drawskoa.m Draw Sallen-Key 1 biquad (for drawsk2b.m)
% 3:46 22/2/99
%
% Album of Analog Filter Realizations
%
% Authors: Dejan V.
mod812
;REV. 1.7 February 2002
;ADuC812 Apps, Analog Devices Inc.
P0 DATA 080H ;PORT 0
SP DATA 081H ;STACK POINTER
DPL DATA 082H ;DATA POINTER - LOW BYTE
DPH DATA 083
dio.c
/*dio.c*/
/*8-bit analog and digital I/O program*/
/*uses MAX158 ADC*/
#include
#include
#include
#include
/* used for the CONTROL port with C3* held h