Asynchronous Sigma-Delta modulator based on the charge pump integrator

被引：2
|
作者：
Koscielnik, D. [1 ]
Miskowicz, M. [1 ]
机构：
[1] AGH Univ Sci & Technol, Dept Elect, Krakow, Poland
来源：
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE MIXED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS | 2006年
关键词：
time encoding; asynchronous Sigma-Delta modulation; charge-pump;
D O I：
10.1109/MIXDES.2006.1706575
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：
The concept of the asynchronous Sigma-Delta modulator based on the charge pump integrator is discussed in the paper. The configurations of the charge pump either with bipolar, or with unipolar controlled current sources are presented. The benefits of a use of the charge pump to provide the integration is emphasized. The conditions for the input signal reconstruction from the timed sequence on the modulator output are derived. The design of the charge-pump-based modulator model, based on classical solutions of the bipolar technology, is exemplified.
引用
收藏
页码：234 / +
页数：2
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