发明名称 |
A Sigma-Delta (SD) Analog-To-Digital Converter (ADC) structure incorporating a direct sampling mixer |
摘要 |
<p>A sigma-delta analog-to-digital converter offers advantages such as noise shaping and high frequency operation. However, a sampling circuit needed to provide a highly oversampled discrete-time sample stream with low noise characteristics is difficult to design and implement. The present invention provides a sigma-delta mixer 300 with such a sampling circuit 310. The present invention discloses a sampling circuit using switched capacitors 307, 308, and 309 with low noise characteristics and at the same time is capable of providing a highly oversampled discrete-time sample stream.</p> |
申请公布号 |
EP1724929(A1) |
申请公布日期 |
2006.11.22 |
申请号 |
EP20060117965 |
申请日期 |
2003.10.17 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
STASZEWSKI, ROBERT B;FENG, CHEN;KHURRAM, MUHAMMED;DIRK, LEIPOLD |
分类号 |
H03M3/02;H03M3/00;H04B1/10 |
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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