发明名称 |
Pop and click reduction using DAC power up and power down processing |
摘要 |
An audio amplifier generates an output to a load, in which a digital-to-analog converter drives the amplifier during powering up and powering down the amplifier. The digital-to-analog converter controls the amplifier to ramp the voltage at the output at a predetermined rate to reduce rapid voltage changes from being sent to the load during the powering up or powering down sequence.
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申请公布号 |
US7254244(B2) |
申请公布日期 |
2007.08.07 |
申请号 |
US20030628827 |
申请日期 |
2003.07.28 |
申请人 |
SIGMATEL, INC. |
发明人 |
HENSON MATTHEW BRADY;FELDER MATTHEW D. |
分类号 |
H03F99/00;H03F1/14;H03F1/26;H03F1/30;H03G3/10;H03G3/34;H04B15/00 |
主分类号 |
H03F99/00 |
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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