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ADF4360-9 ADIsimPLL does not match with calculations

Question asked by Mag on Feb 15, 2011
Latest reply on Feb 20, 2011 by Mag

Dear all!

Is there any way to know how adisimpll calculate loop filter?

Is there any guide like "Application Note 1001 by National Semiconductor."?

 

 

I am trying to design the loop filter of  ADF4360-9 with next configuration:

 

FrefIN 10,00Mhz

Fvco 144.60

Phase detector frequency: 100KHz

loop bandwith: 10khz

Phase margin: 50 degree

Loop filter: CPP_3C

 

PROBLEM:

 

I used ADISIMpll and i get next configuration Where could i find the equations ADISIMpll use for get this parameters?

 

C1=226pf

r1=13.2k

c2=3.91nF

r2=35.9k

c3=78.7pF

 

BUT i try to calculate by hand  and i get ( i used  book guide "PLL Performance, Simulation, and Design 3rd Edition Dean Banerjee")

 

C1=226pf

r1=14.79k

c2=3 nF

r2=5.1k

c3=510pF

 

 

THANK YOU.

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