指挥控制与仿真Issue(3)：25-29,39,6.DOI:10.3969/j.issn.1673-3819.2015.03.005
单片集成R／D转换及数字处理技术研究与设计
Research and Design on Monolithic Integrated R/D Conversion and Digital P rocessing Technology
陈大科1
作者信息
- 1. 连云港杰瑞电子有限公司，江苏 连云港 222061
- 折叠
摘要
Abstract
This paper introduces the design method of R/D conversion technology and products. A novel Implementation of the digital R/D converter combining digital signal processing technology with sigma⁃delta (Σ-Δ) ADC is established. The typical structure of Σ-Δ ADC is optimized to fit for the requirement of real⁃time data processing. The digital phase sensitive detection is acquired by calculating the cross correlation function of internal synthetic reference sequence and digital signal sequence of Σ-Δ modulator. To realize fast conversion, the digital processing and filtering circuit in ADC are integrated into the type 2 tracking closed⁃loop system. This method can simplify circuit structure and reduce chip size. The RTL code of dig⁃ital integrator and filter are designed in Verilog language. The proposed design is verified by mixed⁃signal simulation. The co⁃simulation method based on MATLAB/Simulink and Cadence is used to analysis convertor output spectrum. Finally, a practi⁃cal circuit for R/D converter is described. The experiments results show that the presented method is effective and the per⁃formances of the R/D convertor come up to the level of the same products from abroad.关键词
数字信号处理/Σ-Δ模数转换/R/D转换/集成电路设计Key words
digital signal processing/Σ-Δ analog-to-digital converter/resolver-to-digital convertor/integrated circuit de-sign分类
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陈大科..单片集成R／D转换及数字处理技术研究与设计[J].指挥控制与仿真,2015,(3):25-29,39,6.
