发明名称 |
DIGITAL AUDIO AMPLIFIER, AUDIO SYSTEM INCLUDING THE SAME, AND METHOD OF AMPLIFYING AN AUDIO SIGNAL |
摘要 |
<p>A digital audio amplifier, an audio system including the same and a method of amplifying an audio signal that can reduce switching noise interference generated in a pulse width modulator are provided. The digital audio amplifier includes a selection circuit, a digital signal processor and a pulse width modulator. The selection circuit selects one of an audio data signal and a digitized broadcasting signal to output a digital input signal. The digital signal processor samples the digital input signal using one of a plurality of oversampling frequencies based on a local oscillator output signal and a separation signal to output a sampled digital signal. The pulse width modulator performs a pulse width modulation on the sampled digital signal.</p> |
申请公布号 |
KR20060041033(A) |
申请公布日期 |
2006.05.11 |
申请号 |
KR20040090386 |
申请日期 |
2004.11.08 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM, IL JOONG;LEE, JEOUNG IN |
分类号 |
H03F3/217;H04H20/88 |
主分类号 |
H03F3/217 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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