实测DS90UB927的时钟是12.48Mhz,对手件为926,在测试FPDLINK的jitter时发现其指标超过0.35UI,但是眼图和MAP工具测试都是OK的,想问下如何解决该问题?
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实测DS90UB927的时钟是12.48Mhz,对手件为926,在测试FPDLINK的jitter时发现其指标超过0.35UI,但是眼图和MAP工具测试都是OK的,想问下如何解决该问题?
您好!
JITTER是在FPDLINK上测试的。926的眼图是在CML引脚测试的。