求讨论:
I2S 接口的音频功率放大器的THD如何测量?
Roman Wang:
直接的方式,用AP的PSIA接口输出MCLK,BCLK,LRCLK,DATA,如果有控制板,同样可以用光纤,同轴或者模拟输入。
keyway tnbo:
没有 AP的使用方式
(1)使用逻辑分析仪截取 I2S 资料转TXT或是word
(2)使用Labview 分析
https://decibel.ni.com/content/docs/DOC-14221
no no3:
下载 Realtime Analyzer
================================DSSF3 Version 5 ——————————–Ver.5.0.2.xby Yoshimasa Electronic Inc.================================**************************************************About version 5.0.2.x**************************************************This version includes all updates of DSSF3 until September 2003. (DSSF3 is our best sound measurement/analysis software and is frequently updated.)Modification from version 5.0.1 is as follows.Users of DSSF3 version 5 can online update to version 5.0.2.x freely. Now, DSSF3 LIGHT can be purchased from PayPal.11 July 2003Phase meter was added to the FFT analyzer.
Carter Liu:
回复 Roman Wang:
请问各位,若是用TAS5706EVM2(配合MC57xxPSIA使用)来测试TAS5706的THD+N 该如何测试呢?