GND

0.1µF

0.1µF

AUDIO PRECISION

S

D

10

NŸ

V p-p

IN

21

MUX36S08, MUX36D04

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SBOS705A – JANUARY 2016 – REVISED JANUARY 2015

Product Folder Links: MUX36S08 MUX36D04

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8.12 THD + Noise

The total harmonic distortion (THD) of a signal is a measurement of the harmonic distortion, and is defined as the

ratio of the sum of the powers of all harmonic components to the power of the fundamental frequency at the mux

output. The on-resistance of the MUX36xxx varies with the amplitude of the input signal and this results in THD

when the drain pin is connected to a low-impedance load. Total harmonic distortion plus noise is denoted as

THD+N. Figure 36 shows the setup used to measure THD+N of the MUX36xxx.

Figure 36. THD+N Measurement Setup