Observations Concerning the Generation of Spurious Tones in Digital Delta-Sigma Modulators Followed by a Memoryless Nonlinearity

被引：18

作者：

Hosseini, Kaveh ^{[1
]}

Fitzgibbon, Brian ^{[2
,3
]}

Kennedy, Michael Peter ^{[2
,3
]}

机构：

[1] Cypress Semicond Inc, Cork, Ireland

[2] Natl Univ Ireland Univ Coll Cork, Dept Elect & Elect Engn, Cork, Ireland

[3] Natl Univ Ireland Univ Coll Cork, Tyndall Natl Inst, Cork, Ireland

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2011年 / 58卷 / 11期

基金：

爱尔兰科学基金会;

关键词：

Delta-sigma modulation; fractional-N frequency synthesizer; nonlinear distortion; N FREQUENCY-SYNTHESIZERS; NOISE; PLL;

D O I：

10.1109/TCSII.2011.2164960

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In mixed-signal systems, nonlinear distortion due to nonideal analog circuitry can act on quantized digital sequences, giving rise to spurious tones. In this brief, generation of spurious tones in digital delta-sigma modulators, followed by memoryless nonlinearity, is investigated. Inherent modulator periodicity that persists even with the use of least-significant-bit dither is identified.

引用

页码：714 / 718

页数：5

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