Dynamic Range Rechner
Berechnen Sie system dynamic range aus maximum signal level und noise floor. Find equivalent ADC bits.
Dynamic Range
90.0 dB
Dynamic Range vs Maximum Signal Level
Formel
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
Lösungsbeispiel
Receiver with max signal +10 dBm and noise floor -80 dBm.
- 01Dynamic range: 10 - (-80) = 90 dB
- 02Equivalent bits: (90 - 1.76) / 6.02 = 14.7 bits
- 03A 16-bit ADC would cover this range
Häufig Gestellte Fragen
What limits dynamic range?
The noise floor sets the lower limit, and compression/clipping sets the upper limit. Both analog and digital stages contribute.
How does dynamic range relate to SFDR?
Spurious-Free Dynamic Range (SFDR) measures from the signal to the largest spurious component, not the noise floor. SFDR is always less than or equal to DR.
Can I extend dynamic range with AGC?
Automatic Gain Control extends the effective input range but does not improve instantaneous dynamic range.
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