Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
charch pump has a very critical role in a pll design.
the basic parts of the pLL are as follows:
O- comparator(PFD) -> Loop Filter ->VCO---
^_________ frequency divider________|
actually, the charge pump is part of the loop filter.
it charges/discharges the capacitor(filter) according...
there are many types of smps: flyback, forward, buck boost, etc...
designing an smps is not as easy as designing a linear power supply.
i recommend you read a book by Pressman, it's all about smps. Sorry i forgot the title.
i think when u want to improve the psrr, you want to decrease it?
like decrease psrr from -30db to -60 db, right?
btw, when u mentioned increasing the channel length, which mos is it?
the current mirror/differential pair/load?
my understanding is that when u increase the channel width of the...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
