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为何NI 5620的上截止带宽是36MHz?
硬件: Modular Instruments>>RF Measurement Devices
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问题: 耐奎斯特定理说明了可以精确传递的信号频率最高是采样率的一半。是否因为最高采样率是64MS/s，所以上截止带宽是32MHz?
解答: 这个产品设计的平坦通带为5MHz-25MHz。使用的带通滤波器具有缓慢滚降特性，-3dB带宽为36MHz, 这就是产品的这个参数的出处。
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报告日期: 09/05/2001
最近更新: 07/25/2005
文档编号: 2D4CMFV2