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TMUXHS4412: 差分开关的DC损耗,延迟问题

Part Number: TMUXHS4412

您好,我在做serdes 14.592Gbps环回ATE测试,由于TX RX lane数量不对等,需要用到switch来切换。通过IL指标选出1款比较合适的switch,是TMUXHS4412。有两点问题想请您帮忙确认一下。 1)serdes是DC coupling,关注走线上Vcm的损耗,请问可以帮提供switch的DC 损耗参数吗? 2)serdes是差分对,对PN SKEW有要求,看到datasheet上提供了f=1 GHz的tSK_INTRA为4ps,请问PN SKEW随频率变化吗,可以帮提供14.592Gbps速率下的PN SKEW吗。 感谢!