【摘要】 由于早期推出的套片中没有最小相位滤波,故国际国内研制地震数据采集器都采用了DSP滤波抽取方案(简称通用方案)。随着电子技术日新月异的发展,有条件采用CirrusLogicg公司推出的新一代套片CS3301、CS5371/72、CS5376A设计地震数据采集器。该套片方案与通用方案相比优点如下:专用性能好,电路简洁,同步性能好,噪声低,滤波速度快,研制周期短等。本文对由套片方案研制出的24位地震数据采集器及优点进行详细论述。更多还原

【Abstract】 Without minimum phase filtering in early matching chip,Earthquake Data Acquisition Device adopted the plan of DSP filtering decimate(the general plan).With the fast developing of electronic technique,we can use new matching chip of Cirrus Logicg CS3301、CS5371/72、CS5376A to develop the Earthquake Data Acquisition Device.The matching chip plan’s advantages to general plan are as follow:good specialty,succinct electric board,good synchronization,lower noise,fast filtering,short developing term and so on.In this paper,the emphasis is to introduce the 24-bits Earthquake Data Acquisition Device developed with the matching plan and it’s advantages.更多还原