摘要：常用的音频系统使用模拟开关切换低级别的输入或调整音频过滤器的特点。选择合适的模拟开关，可以帮助优化系统的总谐波失真（THD），在设计师的成本预算。Maxim > App Notes > AUDIO CIRCUITS SWITCHES AND MULTIPLEXERS Keywords: analog switches, THD, audio filter, on-resistance distortion, flatness, linearity impedance Feb 23, 2001 APPLICATION NOTE 730 Minimizing Total Harmonic Distortion Contributed by Analog Switches in Audio Systems Abstract: Analog switches are commonly used in audio systems to switch low-level inputs or adjust audio filter characteristics. Selecting the proper analog switch can help optimize the total harmonic distortion (THD) of a system within the designer's cost budget. Analog switches are commonly used in audio systems to switch low-level inputs or adjust audio filter characteristics. Selecting the proper analog switch can help optimize the total harmonic distortion (THD) of a system within the designer's……