发明名称 |
Sigma delta modulator with distributed prefiltering and feedback |
摘要 |
A separate filter circuit is inserted between the D/A converter and the summing junction in the feedback path of a conventional sigma delta modulator. This additional filter allows control of the quantization noise transfer function profile independently of the forward signal transfer function. By proper tailoring of the transfer functions a third or higher order modulator can be constructed without instability developing.
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申请公布号 |
US5055843(A) |
申请公布日期 |
1991.10.08 |
申请号 |
US19900472706 |
申请日期 |
1990.01.31 |
申请人 |
ANALOG DEVICES, INC. |
发明人 |
FERGUSON, JR., PAUL F.;GANESAN, APPARAJAN;ADAMS, ROBERT W. |
分类号 |
H03G3/02;H03M3/02;H03M7/32 |
主分类号 |
H03G3/02 |
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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