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Pll Design
PLL Type 2 Design with Extra Pole  
This tool calculates PLL loop components. This algorithm is simple, in that it leaves the charge pump current sizing to the user. In practice the loop filter resistor is sized for the phase noise requirement, which in turns leads to a charge pump current requirement. The bandwidth is sized to suppress fractional-N noise or reference spur noise, which is dependent on phase noise requirements. The sizing also does not account for variation in Kv.

PLL Loop Filter Design Program.  
PLL Loop Filter Design Program.

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WEB TOOLS
PLL 2nd order loop filter design program:
Enter LG, CP current, Fr, Fout, and BW, program outputs filter values and divider ratio
PLL Loop Filter Design Type 2 with Extra Pole:
This tool calculates PLL loop components of Type 2 PLL with extra pole


MATHCAD/MATLAB
Second order PLL Mathcad design routine:
Analysis of a second-order PLL with passive filter and current-mode phase detector
Second order PLL Mathcad design routine (pdf):
.pdf file of second-order PLL routine
Third order PLL Mathcad design routine:
Analysis of the charge-pump-based third order PLL
Third order PLL Mathcad design routine (pdf):
.pdf file of third order PLL routine
Third order boosted PLL Mathcad routine:
Analysis of a third order PLL boosted with a higher CP current for faster settling time
Third order boosted PLL Mathcad routine (pdf):
.pdf of third order boosted PLL routine
Third order, switched resistor, boosted PLL:
Analysis of a third order PLL in which the filter resistor is switched during the "boost" mode of operation
Third order, switched resistor, boosted PLL (pdf):
.pdf of switched-resistor, boosted, third order PLL
Crystal oscillator routine:
Mathcad routine analyzes a crystal's equivalent circuit