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.

Clock frequency (Hz)

Required number input.

PWM frequency (Hz)

Required number input.

Compute the PWM resolution in bits from the clock frequency and the PWM frequency. 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]

PWM resolution (bits)

The resulting pwm resolution returned as a number.

• PWM averages assume a defined waveform, period, amplitude, load response, and switching convention. Resolution, timer clock, dead time, minimum pulse width, quantization, filtering, and nonlinear loads affect the realized output.
• 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.

• NCO Frequency Resolution

  Numerically controlled oscillator frequency step for a given clock and phase accumulator width.

• Direct Digital Synthesis Frequency

  DDS output frequency from an integer tuning word, system clock and phase accumulator bit width.

• Memory Latency from Cycles

  Convert a latency measured in clock cycles to nanoseconds using a clock frequency in hertz. Ensure the cycle count and frequency refer to the same clock domain.