Téma: Spektrum
Vážení guruové,
lze nějak usuzovat na kvalitu zesilovače ze spektra Fourierovy analýzy?
Tady je výsledek pro 20 kHz a plný výkon:
FOURIER COMPONENTS OF TRANSIENT RESPONSE V(OUT)
DC COMPONENT = 1.156595E-02
HARMONIC FREQUENCY FOURIER NORMALIZED PHASE NORMALIZED
NO (HZ) COMPONENT COMPONENT (DEG) PHASE (DEG)
1 2.000E+04 2.845E+01 1.000E+00 -2.635E+00 0.000E+00
2 4.000E+04 9.535E-03 3.352E-04 -6.784E+01 -6.257E+01
3 6.000E+04 5.360E-03 1.884E-04 6.753E+01 7.543E+01
4 8.000E+04 1.120E-03 3.936E-05 1.379E+02 1.485E+02
5 1.000E+05 9.920E-04 3.487E-05 -1.036E+02 -9.041E+01
6 1.200E+05 6.947E-04 2.442E-05 4.827E+00 2.064E+01
7 1.400E+05 1.138E-03 4.001E-05 3.572E+01 5.417E+01
8 1.600E+05 5.760E-05 2.025E-06 -6.847E+00 1.423E+01
9 1.800E+05 6.247E-04 2.196E-05 -1.032E+02 -7.951E+01
10 2.000E+05 1.450E-04 5.099E-06 3.787E+01 6.422E+01
TOTAL HARMONIC DISTORTION = 3.915775E-02 PERCENT
Je to použitelný nebo blbý?