What is Dithering and why it is used?
https://ortenga.net/asic/#what-is-dithering-and-why-it-i

What is Dithering and why it is used?

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发布日期: 2025年3月1日
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Dithering is a technique of reducing spurious unwanted signal which are unavoidable due to design architecture.

By modulating the unwanted spurious signal with wide band noise, the spurious signal can be reduced by several dB and in some cases suppressed below noise floor.

It is analogous to putting out fire by fire.

Dithering has applications in PLL, DSM, ADC, and DAC where spurious signals are number of one challenge for operational success.

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