Signal Processing & DSP
Basic
RC Time Constant
Time for an RC circuit to charge to ~63% of final value.
Formula
Live Calculator
MembersVariables
τTime constant (s)
RResistance (Ω)
CCapacitance (F)
Example
R=10kΩ, C=100µF: τ = 1 s
Did You Know?
After five time constants a capacitor is considered fully charged (over 99%).
Share this formula
More in Signal Processing & DSP
View allNyquist Rate
IntermediateSample at least twice the highest frequency to avoid aliasing.
FFT Bin Frequency
AdvancedFrequency represented by the k-th bin of an N-point FFT.
Frequency Resolution
IntermediateSpacing between adjacent FFT bins.
Signal-to-Noise Ratio
BasicRatio of signal power to noise power, in decibels.
Quantisation SNR
AdvancedBest possible SNR (dB) of an ideal b-bit converter.
Decibel (Power Ratio)
BasicExpress a power ratio in decibels.