Is there an equation that works out the pll register values from the frequency in MHz for the HMC830 and 833?

Is there an equation that works out the pll register values from the frequency in MHz for the HMC830 and 833?

Please see section 4.12.2.1 in the PLL Operating Guide at http://hittite.com/content/documents/operating_guide/pll_operating_guide_rf_vcos.pdf

Equation 13 calculates the VCO frequency as a function of three PLL register settings:

- R divider stored in Reg 0x02
- Nint stored in Reg 0x03
- Nfrac stored in Reg 0x04

The Nfrac number referenced by EQ13 is a fractional number. You get this by dividing the number in Register 0x04 by 2E24.

Select an output divider setting (stored in VCO_reg0x02[5:0]) such that the HMC830 VCO always operates in the 1500MHz to 3000MHz range. The output divider will always be divide-by 1 when the output frequency falls within the 1500MHz to 3000MHz fundamental operation frequency range of the VCO.The HMC833 includes an output doubler. Output frequencies between 3000MHz to 6000MHz require the doubler on and run the VCO at half the output frequency.

Please see section 4.12.2.1 in the PLL Operating Guide at http://hittite.com/content/documents/operating_guide/pll_operating_guide_rf_vcos.pdf

Equation 13 calculates the VCO frequency as a function of three PLL register settings:

The Nfrac number referenced by EQ13 is a fractional number. You get this by dividing the number in Register 0x04 by 2E24.

Select an output divider setting (stored in VCO_reg0x02[5:0]) such that the HMC830 VCO always operates in the 1500MHz to 3000MHz range. The output divider will always be divide-by 1 when the output frequency falls within the 1500MHz to 3000MHz fundamental operation frequency range of the VCO.

The HMC833 includes an output doubler. Output frequencies between 3000MHz to 6000MHz require the doubler on and run the VCO at half the output frequency.