发明名称 |
CONTINUOUS-TIME OVERSAMPLED CONVERTER HAVING ENHANCED IMMUNITY TO NOISE |
摘要 |
An apparatus includes a clock source and an oversampled continuous-time digital-to-analog converter. Noise signal is added to the clock signal as the clock signal is generated and/or routed. The oversampled continuous-time digital-to-analog converter includes a sigma-delta modulator to perform noise shaping on input data samples and provide intermediate data samples; a filter to filter the intermediate data samples and generate filtered samples, the filter having a transfer function that has a stop band at a frequency range that includes the frequency of the noise signal or a component of the noise signal; and a continuous-time digital-to-analog converter to convert the filtered samples to an output analog signal.
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申请公布号 |
US2012188107(A1) |
申请公布日期 |
2012.07.26 |
申请号 |
US201113337143 |
申请日期 |
2011.12.25 |
申请人 |
ASHBURN, JR. MICHAEL A.;GEALOW JEFFREY CARL;FERGUSON, JR. PAUL F. |
发明人 |
ASHBURN, JR. MICHAEL A.;GEALOW JEFFREY CARL;FERGUSON, JR. PAUL F. |
分类号 |
H03M1/12;H03M1/66;H03M3/02 |
主分类号 |
H03M1/12 |
代理机构 |
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主权项 |
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地址 |
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