Hz to PPM Calculator Formula
ppm = (Δf / f₀) × 10⁶
Formula Explanation
The Hz to PPM conversion calculator computes how much a frequency deviates relative to its nominal value in parts per million (ppm). Here, Δf is the frequency variation, and f₀ is the nominal center frequency. By dividing the frequency variation by the nominal frequency and multiplying by one million, the formula expresses the deviation in ppm, which is commonly used in oscillators and RF systems to quantify frequency stability.
Uses of Hz to PPM conversion calculator
This Hz to PPM conversion calculator is useful in:
- Evaluating oscillator performance and frequency stability in RF circuits.
- Characterizing crystal oscillators for timing and synchronization applications.
- Comparing measured frequency deviations with manufacturer specifications.
- Designing precision instruments that require tight frequency tolerances.
- Testing frequency accuracy in communication systems and signal generators.
Formula Example
Suppose a nominal frequency f₀ = 10 MHz and a measured frequency variation Δf = 5 Hz.
ppm = (5 / 10,000,000) × 10⁶ = 0.5 ppm
This result indicates that the frequency deviation is 0.5 parts per million relative to the nominal frequency.