一种可重构流水线ADC的设计  

Design of reconfigurable pipeline A/D converter

作　　者：陈振宇[1] 王立志[1] 杨勇[1] 

机构地区：[1]空军工程大学理学院,陕西西安710051

出　　处：《现代电子技术》2012年第12期146-148,共3页Modern Electronics Technique

摘　　要：对多标准无线通信系统中的A/D转换器进行了研究,根据无线通信系统的特点,构建了一个新型可重构流水线A/D转换器结构,该A/D转换器的可重构功能是通过在低分辨率下关断子级流水线来实现的。转换器的系统指标为6～14b,从而可以在保证不影响ADC性能的前提下,引入新颖的可重构控制以进一步降低功耗。最后对改进的可重构流水线ADC进行了性能仿真。The A/D converter in the multi-standardwireless communication system is studied in this paper. According to the multi-mode characteristics of the wireless communication system, the structure of a new reconfigurable pipeline A/D con- verter was built. The reconfiguration function of the A/D converteris was mainly achieved by powering off the sub-stage pipe- line in low resolution modes. The systematic index of the converter is 6~14 b. In this condition, a novel reconfigurable con- trol can be introduced to reduce the power dissipation without deteriorating the ADC performance. The simulation of the reconfigurable pipeline A/D converter was performed.

关 键 词：多标准无线通信系统 流水线A/D转换器 可重构控制 性能仿真 

分 类 号：TN710-34[电子电信—电路与系统]