两种远距离时钟传输方式的性能比较

摘要

主要比较了在KM2A电子探测器原型样机读出电子学前期预研阶段中的两种远距离时钟传输方式的性能，介绍了基于Rocket IO高速串行数据收发模块和DS92 LV16芯片的串并转换原理。分别测试了两种时钟传输方式的发送时钟和恢复时钟的相位关系，并对测试结果进行了比较。%It has designed a electronic system which receive data from electronic detector of KM 2A though dis-tance optical fiber transmission .KM2 A is a lord array used on a large high altitude air cluster observatory ( LHAASO) .Also do the test to compare the high speed data collecting module integrated in FPGA with the SerDes commercial chip;Test the phase relationship between transmit and recovery clock by two kinds of optical clock transmission , and compare the test result .