How to avoid the Dead-Zone in PFD of PLL

[schwang1970]

pfd dead zone

Hi All
Did anyone can tell me how to avoid the dead-zone problem in PLL design?and can
supply some material about this topic?
Thank you a lot !

 

[rfsystem]

dead zone pll

Discussed in very detail!

 

[jecyhale]

Hi All
Did anyone can tell me how to avoid the dead-zone problem in PLL design?and can
supply some material about this topic?
Thank you a lot !

use a delay to generate a narrow pluse.

Please refer the Design of Analog CMOS Integrated Circuits of Razavi