hhq414
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Hi all,
There is a sigma-delta pll. When the divide ratio is integer and sdm (with dither) is on, the tested phase noise profile is fluctuating largely. But when the divide ratio is fractional, the fluctuation is very small. What's the reason?
There is a sigma-delta pll. When the divide ratio is integer and sdm (with dither) is on, the tested phase noise profile is fluctuating largely. But when the divide ratio is fractional, the fluctuation is very small. What's the reason?