发明名称 Audio system with power-on/off noise suppression and audio amplifier thereof
摘要 An audio system with power-on/off noise suppression and an audio amplifier thereof are disclosed. The audio system includes a front stage circuit and an audio amplifier. The front stage circuit is powered by a first supply voltage and outputs an audio signal. The audio amplifier amplifies the audio signal to drive a load. When a level of the first supply voltage drops below a threshold, the audio amplifier is disabled.
申请公布号 US7482866(B2) 申请公布日期 2009.01.27
申请号 US20070671471 申请日期 2007.02.06
申请人 HIMAX ANALOGIC, INC. 发明人 WU KUO-HUNG
分类号 H03F1/14 主分类号 H03F1/14
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