基于CS套片的低噪声数据采集系统设计

Drive Design for Digital Filter Chip CS5376A Based on FPGA

针对微弱信号的低噪声采集应用需求,采用美国Cirrus Logic公司的针对地球物理应用的24位数据采集套片CS5376A、CS5372A和CS3301A,基于FPGA技术,开发了一种同步、低噪声数据采集系统。给出了系统的总体设计方案。详细介绍了数字滤波芯片CS5376A的接口逻辑设计和软件设计。

For the application demand of acquiring weak signals with a low-noise requirement, a data acquisition system with char-acteristics about synchronization and low noise is developed, based on the FPGA technology and the 24-bit data acquisition set ofCS5376A、CS5372A and CS3301 A designed by CIRRUS LOGIC company in America for Geophysical applications. The overallsystem design scheme is illustrated, and the interface logic design and software design of the digital filter chip CS5376 A is intro-duced in detail.