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跨阻放大器TIA

时间:10-02 整理:3721RD 点击:


为啥眼图的上下沿不对称呢~反而看起来有点像旋转了180度~

不对不对,,,是关于中心线对称

This output should be single-end signal, rising time!=falling time.
BTW differential signal can solve the above problem

这不应该是跟我设置的伪随机序列的trise和tfall有关吗?为什么单端信号上升沿和下降沿的走势不同呢?

dsafsdafsd

Yes, the rising time/ falling time of input PRBS does matter. But the equations of charge/discharge of load cap through resistor to supply/gnd are different{ Vdd*(1-exp(-t/tau1)) @charging, vdd*exp(-t/tau2)@discharging} , generally speaking tau1 != tau2.I don't seize what you want to say. what do you mean by "走势"?

THX,原谅我这个新手的不专业词语,,,“走势”就是说曲线的变化趋势

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