This calculator determines the key parameters of a quartz crystal oscillator, including the series resonance frequency, parallel resonance frequency, and quality factor. It helps analyze crystal behavior in RF and oscillator circuit design.
PINCH OFF VOLTAGE – pinch off voltage in jfet
Formulas
Fs = 1 / (2 * π * √(Ls * Cs))
CMOS PMOS NMOS (nmos pmos and cmos)
Fp = 1 / (2 * π * √(Ls * ((Cs * Cp) / (Cs + Cp))))
Q = (2 * π * Fs * Ls) / Rs
IS THERE ANY DIFFERENCE BETWEEN PHOTODIODE AND…
Formula Explanation
- Fs: Series resonance frequency depends on the inductance and series capacitance.
- Fp: Parallel resonance occurs due to interaction of series and parallel capacitances.
- Q: Quality factor represents how efficiently the crystal stores energy.
Example
Input: Ls = 0.03 H, Cs = 0.02 pF, Cp = 5 pF, Rs = 10 Ω
Result: Fs ≈ 6.50 MHz, Fp ≈ 6.51 MHz, Q ≈ 122,000
Who uses it
Ideal for RF designers and electronics engineers optimizing crystal oscillators for timing, filters, and frequency control circuits.