Continue to Site

Welcome to EDAboard.com

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.

Register Log in

how to increase frequency range of DLL?

Status
Not open for further replies.
N

newbie_1

Member level 3
Member level 3
Joined
Sep 27, 2005
Messages
54
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
1,739
hi,

i wanna design a DLL with the lock range of 100Mhz to 600Mhz while the power is 1v, how can i make the range so wide since the power supply is only 1v? can anybody give me any help, and share me some papers?

thanks
 

Typical DLL range is limited to 2-3 for bias current controlled or supply controlled VCRO. You have to concider an additional 2-3 range for temp, process spread and supply.

Higher ranges ar typical derived by switching. So oscillator ring lenght is increase and phase resolution too. Switching factor is typical 2.
 

so what does "DLL range is limited to 2-3" mean?

rfsystem said:
Typical DLL range is limited to 2-3 for bias current controlled or supply controlled VCRO. You have to concider an additional 2-3 range for temp, process spread and supply.

Higher ranges ar typical derived by switching. So oscillator ring lenght is increase and phase resolution too. Switching factor is typical 2.
Click to expand...

Added after 2 minutes:

and it will be hard to get wide lock range since control voltage is less than 1v, that is too low adjust range here, so try dual loop with coarse loop and fine loop
 

    N

    newbie_1

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top