基于TIADC的高速、高带宽信号采集系统  

High Speed and High Bandwidth Signal Acquisition System Based on TIADC

作　　者：余国良 陆霄 李居强 孟祥冬 孙晓冬[1] YU Guoliang;LU Xiao;LI Juqiang;MENG Xiangdong;SUN Xiaodong(China Electronics Technology Group Corporation No.58 Research Institute,Wuxi 214035,China)

机构地区：[1]中国电子科技集团公司第五十八研究所,江苏无锡214035

出　　处：《电子与封装》2022年第11期42-47,共6页Electronics & Packaging

基　　金：辽宁省科技厅联合开放基金机器人学国家重点实验室开放基金(2021KF2205)。

摘　　要：对基于国产现场可编程门阵列(FPGA)和时间交织模数转换器(TIADC)的信号采集系统进行了研究,分析了TIADC应用过程中的硬件设计问题,考虑了噪声、抖动、频谱泄露等因素对信号采集系统性能的影响,并基于最小二乘法完成了TIADC通道失配误差的标定和校准。对设计的信号采集系统进行了动态性能测试,测试结果表明,设计的信号采集系统采样率达到10 GSa/s,实时采样带宽达到4 GHz。The signal acquisition system based on domestic field programmable gate array(FPGA) and time interleaved analog to digital converter(TIADC) is studied. The hardware design problems in the application of TIADC are analyzed. Influences of noise, jitter, spectrum leakage and other factors on the performance of the signal acquisition system are studied. The calibration and alignment of TIADC channel mismatch errors are completed based on least square method. Dynamic performances of the designed signal acquisition system are tested. The results show that the sampling rate of the designed signal acquisition system reaches 10 GSa/s, and the real-time sampling bandwidth reaches 4 GHz.

关 键 词：TIADC FPGA 并行采样 高速、高带宽 

分 类 号：TN409[电子电信—微电子学与固体电子学]