Lesson 7 – Executing the DAC Distortion Test
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The INFO column shows the type and origin of the resulting
harmonic frequencies. The harmonics for two fundamentals are
calculated according to:
Harmonics Calculation for 2 Fundamentals
Abbrev. Meaning Formula for 2 Fundamentals
F Fundamentals (generated
signal frequencies)
F1 , F2
D 2 2nd order distortion 2 * F1 , 2 * F2
D 3 3rd order distortion 3 * F1 , 3 * F2
I 2 2nd order intermodulation | F1 ± F2 |
I 3 3rd order intermodulation | F1 ± 2 * F2 |, | 2 * F1 ± F2 |
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