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I2S 音频功率放大器的THD测量问题

Other Parts Discussed in Thread: TAS5706

求讨论:

I2S 接口的音频功率放大器的THD如何测量?

  • 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。

  • 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

  • 下载 Realtime Analyzer

    ================================
    DSSF3 Version 5
    --------------------------------
    Ver.5.0.2.x
    by 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 2003
    Phase meter was added to the FFT analyzer.

  • 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?