发明名称 |
Delta sigma modulating apparatus |
摘要 |
A first second- or higher-order delta sigma modulator and a second second- or higher-order delta sigma modulator having a notch characteristic are cascaded together, and a delayed signal of the output of the first delta sigma modulator and a differential signal of the output of the second delta sigma modulator are added together. The amount of feedback from the output portion to the input portion of the first delta sigma modulator and the amount of feedback from the output portion to the input portion of the second delta sigma modulator are made the same.
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申请公布号 |
US2005088327(A1) |
申请公布日期 |
2005.04.28 |
申请号 |
US20040973254 |
申请日期 |
2004.10.27 |
申请人 |
MATSUSHITA ELETRIC INDUSTRIAL CO., LTD. |
发明人 |
YOKOYAMA AKIO;KOBAYASHI HITOSHI;INUKAI FUMIHITO |
分类号 |
H03M3/02;H03M3/00;(IPC1-7):H03M3/00 |
主分类号 |
H03M3/02 |
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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