发明名称 |
Method and apparatus for digital to analog conversion with reduced noise |
摘要 |
A method and apparatus for digital to analog signal conversions with reduced noise include processing that begins by receiving a digital signal and filtering the digital signal to produce a filtered digital signal. The filtering is tuned to attenuate components of the digital signal having frequencies near one-half the sampling rate frequency and to pass other components of the digital signal having frequencies away from one-half the sampling rate frequency. The filtered signals are then converted to analog signals based on a clock signal having a sampling rate frequency and a voltage reference.
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申请公布号 |
US6147634(A) |
申请公布日期 |
2000.11.14 |
申请号 |
US19980211616 |
申请日期 |
1998.12.15 |
申请人 |
SIGMATEL, INC. |
发明人 |
RANGAN, GIRI N;RYBICKI, MATHEW A |
分类号 |
H03M3/00;(IPC1-7):H03M3/00 |
主分类号 |
H03M3/00 |
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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