发明名称 Feedforword Sigma-Delta Ad Converter with an Optimized Built-In Filter Function
摘要 The present invention relates to a receiver apparatus, analog-to-digital converter apparatus, and method of converting an analog input signal into a digital output signal, wherein an additional direct feedforward path is introduced to compensate for peaking of feedforward structures while preserving frequency selectivity of the feedforward topology. In particular, the direct feedforward path (72) is provided with a scaling by a direct feedforward coefficient (ao) greater than zero and less than one. As a result, overshoot or peaking of classical feedforward topologies can be suppressed while providing interferer immunity, anti-aliazing effects and loop stability.
申请公布号 US2008309535(A1) 申请公布日期 2008.12.18
申请号 US20060096210 申请日期 2006.12.04
申请人 NXP B.V. 发明人 LE GUILLOU YANN
分类号 H03M3/02 主分类号 H03M3/02
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