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发表于 2019-10-16 16:33:00
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本帖最后由 zjzju 于 2019-10-16 17:12 编辑
我看过这段话，觉得有意思就转过来：
The lowest jitter clock you can ever get is a reallygood crystal oscillator that puts out the frequency you want(or an integer multiple) directly.
The greatest common denominator between 44.1kHz and 10MHz for instance is 100Hz. It is exceedingly dificult to make a synthesizer with such a ratio that doesn't have significant jitter products at 100Hz intervals. If the aim of the undertaking is to minimize jitter, bringing in a 10MHz laboratory standard is a surefire way of making things much more complicated and much more expensive.
您可以获得的最低抖动时钟是一个非常好的晶体振荡器，它可以直接输出您想要的频率（或整数倍）。
在44.1kHz和10MHz之间的最大公分母为100Hz。 制造这样一种比例的合成器非常困难，该比例在100Hz的间隔内没有明显的抖动产物。 如果这项工作的目的是使抖动最小化，那么引入10MHz实验室标准就是使事情变得更加复杂和昂贵。
以上是来自专业厂的产品白皮书。
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