Contents
1 Introduction to Noise-Aware PLL Design Flow.............................................................. 3
2 Downloading GPDK180.................................................................................................. 5
3 Before Starting................................................................................................................. 7
4 Integer-N PLL design flow.............................................................................................. 9
4.1 Creating a CMI Model for the VCO/Divider................................................................ 9
4.2 Creating a Model for the PFD/CP............................................................................... 20
4.3 Simulating an Integer-N PLL...................................................................................... 28
5 Fractional-N PLL Design Flow ..................................................................................... 47
5.1 Creating a CMI Model for the VCO/Divider.............................................................. 47
5.2 Creating a Model for the PFD/CP............................................................................... 54
5.3 Simulating a Fractional-N PLL................................................................................... 54
Noise Aware PLL flow FAQ............................................................................................ 63