Use this electronics calculation for a first-pass component, converter, signal, motor, or sensor estimate when the stated operating conditions and units match the device data.

Signal frequency

Required number input.

Jitter RMS

Required number input.

Calculate the signal-to-noise ratio ceiling imposed by sampling clock aperture jitter. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Jitter-limited SNR

The resulting jitter-limited snr returned as a number.

• Signal-integrity estimates depend on edge rate, channel loss, impedance discontinuities, termination, encoding, equalization, clock recovery, jitter decomposition, crosstalk, connectors, vias, and receiver masks. Aggregate budgets must use compatible statistical or worst-case conventions.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check the result against the current datasheet and worst-case operating corners, then verify the circuit or measurement with simulation and bench testing where failure matters.

• Quantization SNR

  Calculate the theoretical signal-to-noise ratio limit of an ideal quantizer in decibels.

• SNR Linear

  Calculate the linear signal-to-noise power ratio from signal and noise powers.

• ADC Aperture Jitter Snr Limit

  Estimate the aperture-jitter-limited SNR for a sinusoidal ADC input as −20 log10(2πfinput tjitter); this is only the jitter contribution.