TDA1305T CMOS 数模比特流转换器集成了上采样滤波器和噪声整形器,在正常速度模式下,可将 1f s 输入数据的过采样率提高到 96f s(f sys = 192f s)或 128f s(f sys = 256f s)。在双倍速度模式下,1f s 输入数据的过采样率提高到 48f s(f sys = 384f s)或 64f s(f sys = 256f s)。此过采样与 5 位 DAC 一起,通过简单的一阶模拟后置滤波即可实现波形平滑和带外降噪所需的滤波。
瞬态事件的光学成像在其实际发生时间内具有令人信服的科学意义和实际优点。1出现在二维(2D)空间中,并在飞秒(1fs¼10-15s)上发生到微秒(1μS¼1TO-6 s)的时间尺度,这些瞬态事件反映了生物学中许多重要的基本机制。2 - 4但是,许多瞬时现象是不可重复或难以再现的。示例包括自发的突触活动,在不同温度下的5纳米颗粒的发光寿命,6和活组织中的光散射。7在这种情况下,需要大量可重复实验的常规泵 - 探针方法是不可应用的。同时,泵 - 探针接近使用复杂设备的光子到达的时间,以在空间或时间上执行耗时的扫描。在这些情况下,即使瞬态现象可再现,这些
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