Hi,
I was confused by some transient simulation results of two PLLs.
The two PLLs,  PLL 1 and PLL 2, of the same bandwidth, based on ring VCO. Initially they operate at frequency f1, and then both hop to f2.  To switch (f2-f1) in frequency, the control voltage of the VCO in PLL 1 varies ⊿V1, while that in PLL 2 is ⊿V2, and ⊿V1<⊿V2.
Someone says since the two have the same bandwidth, PLL 1 and PLL 2 will relock to f2 in the same time.  But it seems that the same bandwidth actually means the  same‘slew rate’of the VCO control voltage.  That is, if ⊿V1<⊿V2, then PLL 1 will relock faster than PLL 2.  
What is the problem in this analysis?

Hello Keikei,

I am sorry but I really do not understand the problem.
As you describe both PLLs, they are identical, aren´t they ?