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TMUX8212 データシート(PDF) 21 Page - Texas Instruments |
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TMUX8212 データシート(HTML) 21 Page - Texas Instruments |
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21 / 32 page ![]() 8.9 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 multiplexer output. The on-resistance of the device varies with the amplitude of the input signal and results in distortion when the drain pin is connected to a low-impedance load. Total harmonic distortion plus noise is denoted as THD+N. Figure 8-9 shows the setup used to measure THD+N of the devices. SELx GND VSELX SX Dx VS Audio Precision VOUT RS RL SW VDD VSS VDD VSS GND 0.1 µF GND 0.1 µF 50Ÿ Other Sx/ Dx pins Figure 8-9. THD+N Measurement Setup www.ti.com TMUX8212 SCDS434A – OCTOBER 2021 – REVISED DECEMBER 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 21 Product Folder Links: TMUX8212 |
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