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.

Input Tone Dbm (dBm)

Required number input.

Fundamental Output Dbm (dBm)

Required number input.

Third Order Output Dbm (dBm)

Required number input.

Input third-order intercept extrapolated from two-tone fundamental and intermodulation output levels. 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]

Input Ip3 Dbm (dBm)

The resulting input ip3 dbm returned as a number.

• RF gain, noise, compression, intercept, mismatch, sensitivity, and link calculations require consistent impedance, bandwidth, frequency, reference plane, temperature, modulation, and cascade ordering. Datasheet values at different conditions cannot be combined without correction.
• 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.

• LNA Input IP3

  LNA input third-order intercept extrapolated from two-tone fundamental and third-order intermodulation levels.

• Mixer IP3

  Extrapolate the third-order intercept point of a mixer from one tone level and its measured third-order intermodulation product.

• IP3 From Two Tones

  Compute the output third-order intercept point as IP3(dBm) = P(dBm) + (P(dBm) - IM3(dBm)) / 2 from a single tone level and its IM3 product.