Behavioral modeling of switched-capacitor Sigma-Delta modulators

被引:280
作者
Malcovati, P [1 ]
Brigati, S
Francesconi, F
Maloberti, F
Cusinato, P
Baschirotto, A
机构
[1] ACCO Microelettron SRL, I-27100 Pavia, Italy
[2] Univ Pavia, Dept Elect, I-27100 Pavia, Italy
[3] Texas Instruments France, F-06270 Villeneuve Loubet, France
[4] Univ Lecce, Dept Innovat Engn, I-73100 Lecce, Italy
来源
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS | 2003年 / 50卷 / 03期
关键词
analog-digital conversion; discrete-time systems; sigma-delta (Sigma Delta) modulation;
D O I
10.1109/TCSI.2003.808892
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
This paper presents a complete set of blocks implemented in the popular MATLAB SIMULINK environment, which allows designers to perform time-domain behavioral simulations of switched-capacitor. (SC) sigma-delta (SigmaDelta) modulators. The proposed set of blocks takes into account most of the SC SigmaDelta modulator nonidealities, such as sampling jitter, kT/C noise, and operational amplifier parameters (white noise, finite dc gain, finite bandwidth, slew rate and saturation voltages). For each block, a description of the considered effect as well as all of the implementative details are provided. The proposed simulation environment is validated by comparing the simulated behavior with the experimental results obtained from two actual circuits, namely a second-order low-pass and a sixth-order bandpass SC SigmaDelta modulator.
引用
收藏
页码:352 / 364
页数:13
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