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Design >> RF Design >> NTF of frac-N PLL divider quantization noise
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Message started by neoflash on Jun 3rd, 2022, 12:07am

Title: NTF of frac-N PLL divider quantization noise
Post by neoflash on Jun 3rd, 2022, 12:07am

I couldn't really figure out why there is a Tref in the noise transfer function of the frac-n divider noise.

Anyway intuitive to understand this a bit better?

Title: Re: NTF of frac-N PLL divider quantization noise
Post by neoflash on Jun 3rd, 2022, 12:09am

This is another diagram showing the same thing.

Is this Tref gain just to scale FFT results properly from sampling?

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