Calculateur de Largeur de Piste PCB — Formule
## Nyquist-Shannon Sampling Theorem
### Formula
**f_sample >= 2 x f_max**
The minimum sampling rate must be at least twice the highest signal frequency to avoid aliasing. In practice, sample at 2.5x or higher and use an anti-aliasing filter.
### Formula
**f_sample >= 2 x f_max**
The minimum sampling rate must be at least twice the highest signal frequency to avoid aliasing. In practice, sample at 2.5x or higher and use an anti-aliasing filter.
Exemple Résolu
Audio signal with 20 kHz maximum frequency, 2.5x oversampling.
- Nyquist rate = 2 x 20 = 40 kHz (minimum)
- Practical rate = 2.5 x 20 = 50 kHz
- Sample period = 1000 / 50 = 20 us