DS1802双数字音频电位的音频特性报告

摘要：本文件的目的是提供一个考试的DS1802双数字potentiomter的音频特性。测试电路开发与抽头点之间，通道间匹配，或两个电位器雨刷器，总谐波失真（THD） ，互调失真（IMD）和串扰之间的跟踪测量绝对错误的目标。

Application Note 88
Audio Characterization Report for the
DS1802 Dual Digital Audio Potentiometer
www.dalsemi.com
PURPOSE
The purpose of this document is to provide an examination of the DS1802 Dual Digital Potentiometer’s
audio characteristics. Test circuits were developed with the goal of measuring absolute error between tap
points, inter-channel matching or tracking between the two potentiometer wipers, total harmonic
distortion (THD), intermodulation distortion (IMD), and cross-talk. Additionally, data is provided for
mute levels for each potentiometer, as well as active and standby current as a function of temperature a