Calculateur de Fréquence d'Horloge — Formule

What is Dynamic Range?

Dynamic range is the ratio between the largest and smallest signals a system can handle, expressed in decibels.

Formula

DR (dB) = Max Signal Level - Noise Floor

Equivalent Bits = (DR - 1.76) / 6.02

The equivalent bits tell you the ADC resolution needed to digitize this range. Each bit adds about 6 dB of dynamic range.

Examples

  • CD audio (16-bit): 96 dB
  • Professional audio (24-bit): 144 dB theoretical
  • FM radio: ~70 dB
  • Human ear: ~120 dB

    • Exemple Résolu

    Receiver with max signal +10 dBm and noise floor -80 dBm.

    1. Dynamic range: 10 - (-80) = 90 dB
    2. Equivalent bits: (90 - 1.76) / 6.02 = 14.7 bits
    3. A 16-bit ADC would cover this range