利索-全球专利检索

  1. 登录
  2. 注册
发明授权
CN1825127B 量化由信号路径的阻抗变化引起的定时误差的方法和装置 有权 转让

量化由信号路径的阻抗变化引起的定时误差的方法和装置
摘要：
在一个实施例中，多个信号被顺序驱动到一个信号路径上。这些信号中的每个信号具有由触发器边沿和传感器边沿所限定的脉宽，并且这些信号中的至少一些具有不同的脉宽。在驱动每个信号之后，在该信号的传感器边沿的定时上或该定时附近对该信号采样，以刻画该信号的传感器边沿的特征。然后，分析对应于不同信号的传感器边沿特征，以量化由信号路径的阻抗变化所引起的定时误差。
摘要（英）：

In one embodiment, a plurality of signals are sequentially driven onto a signal path. Each of the signals has a pulsewidth defined by a trigger edge and a sensor edge, and at least some of the signalshaving different pulsewidths. After driving each signal, the signal is sampled at or about a timing of the signal's sensor edge to thereby characterize the signal's sensor edge. The sensor edge characterizations corresponding to the different signals are then analyzed to quantify a timing error induced by an impedance variation of the signal path.

公开/授权文献
0/0