发明名称 |
SIGMA-DELTA CONVERTER NOISE CANCELLATION |
摘要 |
Embodiments provide apparatuses, systems, and methods to convert an analog signal input into a sigma-delta digital output at a high sampling rate and correct for noise components of the digital output. An analog filter coupled to a sigma-delta converter accepts a noise-shaped analog signal from the sigma-delta converter to attenuate signal components of the noise-shaped analog signal at a plurality of folding frequencies associated with a sampling rate of a low-speed Analog-To-Digital (ADC) to produce a filtered output. The low-speed ADC is coupled to an output of the analog filter and samples the filtered output of the analog filter at a sampling rate slower than the high sample rate to output an ADC digital output. Other embodiments may be described and claimed. |
申请公布号 |
WO2010036601(A3) |
申请公布日期 |
2010.07.01 |
申请号 |
WO2009US57649 |
申请日期 |
2009.09.21 |
申请人 |
INTEL CORPORATION;LAKDAWALA, HASNAIN;KRISHNAMURTHY, SOUMYANATH |
发明人 |
LAKDAWALA, HASNAIN;KRISHNAMURTHY, SOUMYANATH |
分类号 |
H03M3/00;H03M1/02;H03M3/02 |
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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