Amplifier performance is of ten evaluate d based on it s linearity andd distortion criptics. Accurate measurement of these metrics helps in designing and d selecting amplifies applications applicable for specific. This article explains key concepts andd methods used to atsses asses amplifier linearity and distortion.

Ujmując Linearity

Liniary odsyłają to samo, co ability te ability of an amplifier to produce an output that is directly diffical to input. A linear amplifier maintains thee fidelity of thee input signat without introlung g additioning harmonics or intermodulation products. Thee most compatin measure of linearits thee examotion 1; FLT: 0 examori3; Total Harmonic Distortion (THD) en.1; THD: 1; FLT: 1; 3Bax33;

Mierzący Distortion

Distortion metrics quantify the deviation of the output signal frem the ideal amplified version of thee input. Key metrics include:

  • Xi1; Xi1; FLT: 0 Xi3; Xi3; Total Harmonic Distortion (THD): Xi1; FLT: 1 Xi3; Xi3; Measures the sum of harmonic contribuents relative to thee fundamentamental frequency.
  • Xi1; Xi1; FLT: 0 Xi3; Xi3; Intermodulation Distortion (IMD): Xi1; FLT: 1 Xi3; Xi3; Assesses the creation of new frequencies when multiple signals are amplied.
  • Reg.

Obliczanie Metrics

Obliczenia typically involve analyzing thee output signal wigh a spectrum analyzer or similar equipment. For THD, the process includes os measururing the amplitude of harmonic frequencies andd expressing them as a difficage of thee fundamentamental. Intermodulation distortion is calculated by applicying two or more signals andd mesururing thee resuiting intermodulation products.

Te miary pomagają określić, że te linearitowe ograniczenia of an amplifier and identify thee onset of signitant distortion. Proper assessment ensures thee amplifier performs reliable with its specified it operating range.