请教关于“CS43198”的滤波器

wanyug

请教个问题～～

CS43198 的 Filtering Options 部分介绍了几种滤波器模式，

For PCM/TDM mode, the following interpolation filtering options can be selected:

• Fast roll-off and slow roll-off interpolation filter options.
• In each option above, both low-latency and normal phase-compensation filtering options can be used.
• Nonoversampling (NOS) mode is provided, which minimizes the internal digital processing. Once NOS mode is set,
the settings on the above two options are ignored.

请问谁知道那个“normal phase-compensation filtering” 是怎么个原理啊？还有和“low-latency” 比较有什么特点呢？


谢谢。