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公开(公告)号:US07724165B2
公开(公告)日:2010-05-25
申请号:US12175220
申请日:2008-07-17
申请人: Che-Min Lin , Chiao-Min Chen , Kuo-Hsiung Wu
发明人: Che-Min Lin , Chiao-Min Chen , Kuo-Hsiung Wu
IPC分类号: H03M1/10
CPC分类号: G01R31/3167
摘要: An audio codec and a BIST method adapted for the audio codec are provided. The BIST method includes the following steps. A first channel digital-to-analog converter (DAC) of the audio codec converts a test signal into an analog signal. A first channel analog-to-digital converter (ADC) of the audio codec converts the analog signal into a digital signal. Use a second channel DAC of the audio codec and a second channel ADC of the audio codec to calculate the magnitudes of a plurality of spectral components of the DFT of the digital signal. Determine whether the audio codec passes the test according to the magnitudes of the spectral components.
摘要翻译: 提供了适用于音频编解码器的音频编解码器和BIST方法。 BIST方法包括以下步骤。 音频编解码器的第一通道数/模转换器(DAC)将测试信号转换为模拟信号。 音频编解码器的第一通道模拟 - 数字转换器(ADC)将模拟信号转换为数字信号。 使用音频编解码器的第二通道DAC和音频编解码器的第二通道ADC来计算数字信号的DFT的多个频谱分量的幅度。 确定音频编解码器是否根据频谱分量的大小通过测试。
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公开(公告)号:US20100017691A1
公开(公告)日:2010-01-21
申请号:US12175220
申请日:2008-07-17
申请人: Che-Min Lin , Chiao-Min Chen , Kuo-Hsiung Wu
发明人: Che-Min Lin , Chiao-Min Chen , Kuo-Hsiung Wu
CPC分类号: G01R31/3167
摘要: An audio codec and a BIST method adapted for the audio codec are provided. The BIST method includes the following steps. A first channel digital-to-analog converter (DAC) of the audio codec converts a test signal into an analog signal. A first channel analog-to-digital converter (ADC) of the audio codec converts the analog signal into a digital signal. Use a second channel DAC of the audio codec and a second channel ADC of the audio codec to calculate the magnitudes of a plurality of spectral components of the DFT of the digital signal. Determine whether the audio codec passes the test according to the magnitudes of the spectral components.
摘要翻译: 提供了适用于音频编解码器的音频编解码器和BIST方法。 BIST方法包括以下步骤。 音频编解码器的第一通道数/模转换器(DAC)将测试信号转换为模拟信号。 音频编解码器的第一通道模拟 - 数字转换器(ADC)将模拟信号转换为数字信号。 使用音频编解码器的第二通道DAC和音频编解码器的第二通道ADC来计算数字信号的DFT的多个频谱分量的幅度。 确定音频编解码器是否根据频谱分量的大小通过测试。
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