What is a good value?
Lower (more negative) is better. -60dB is better than -40dB. Values closer to 0 indicate high interference.
Calculator
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Analysis
Interpretation of the current calculator output
Enter values to see detailed analysis and insights.
How to Use
Step-by-step instructions
- 1Enter the voltage of the aggressor signal (source of noise).
- 2Enter the voltage measured on the victim line (induced noise).
- 3The calculator will show the crosstalk in dB.
Crosstalk Ratio
Calculates the magnitude of interference relative to the source signal strength in decibels.
dB = 20 × log₁₀(Vvictim / Vaggressor)Variables:
VvictimVoltage induced on victim lineVaggressorVoltage on aggressor lineExample
Signal Interference
Inputs:
Aggressor:5 V
Victim:0.05 V
Steps:
- 1.Ratio = 0.05 / 5 = 0.01
- 2.dB = 20 * log10(0.01) = 20 * -2 = -40 dB
Result:
-40 dB