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关于ADS5263使用的疑惑

Other Parts Discussed in Thread: ADS5263

想用ADS5263做一个波形采集器,有几个疑问:

1.手册上介绍的模拟信号都是AC耦合,请问如何设计电路能做到直流耦合?

2.单端时钟输入和差分时钟输入在性能上有何差别?时钟输入可以不用变压器或时钟buffer芯片,直接接FPGA的LVDS输出吗?是否一定需要隔直电容?

3.多通道工作时,各数据输出通道信号线是否需要作等长度控制?