发明授权
US06975255B1 Random interleaving dither for sigma-delta analog-to-digital converters
有权
用于Σ-Δ模数转换器的随机交错抖动
- 专利标题： Random interleaving dither for sigma-delta analog-to-digital converters
- 专利标题（中）： 用于Σ-Δ模数转换器的随机交错抖动
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申请号： US10947039申请日： 2004-09-21
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公开(公告)号： US06975255B1公开(公告)日： 2005-12-13
- 发明人: Weibiao Zhang
- 申请人： Weibiao Zhang
- 申请人地址： US TX Dallas
- 专利权人： Texas Instruments Incorporated
- 当前专利权人： Texas Instruments Incorporated
- 当前专利权人地址： US TX Dallas
- 代理商 Abdul Zindani; W. James Brady, III; Frederick J. Telecky, Jr.
- 主分类号： H03M1/20
- IPC分类号： H03M1/20 ; H03M3/04
摘要：
A dithering method is provided for sigma-delta converters in a deep-submicron process. The dither is a random interleaving of quantizer thresholds levels. The random interleaving dither is more effective than previous static dither methods to remove idle channel tones of sigma-delta analog-to-digital converters (ADC). The dither is easy to implement and takes less area than other dynamic dither methods.
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