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 model PLL Fractional N Syntesizer

Status
Not open for further replies.
S

saw86

Member level 2
Joined
Jul 29, 2007
Messages
47
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,288
Activity points
1,588
Hello Everyone I try to model Fractional n pll with AWR Microwave Office my uestion is how can I model fractional n PLL synthesizer with AWR Schematic section not VSS ANyone know please help me

thanks in advance
 

saw86 said:
how can I model fractional n PLL synthesizer with AWR Schematic section not VSS
Click to expand...

You really want to model it at transistor level (MWO circuit simulation) instead of block level (VSS system simulation)?
 

not really I just want to model analog device's PLL in schematic section. I have s parameter result of it and is there any block define p1dB phase noise loop filter ,phase detector, frequency divider...I am just thinking it's possible or not

Mr. Muehlhaus
 

saw86 said:
is there any block define p1dB phase noise loop filter ,phase detector, frequency divider...I am just thinking it's possible or not
Click to expand...

These elements are in the "system blocks" palette, so I think you will need the VSS license to use them.

 

Ok thnaks for the info MR. Muehlhaus I will check on that
 

I recommend you to simulate your Fractional Synthesizer in Matlab Simulink.There are tons of scripts and modelling block in it..
 

Ok Bigboss I think I must try to figure out how to import matlab script into the awr mwo schematic

Thanks bigboss for the info
 

saw86 said:
Ok Bigboss I think I must try to figure out how to import matlab script into the awr mwo schematic

Thanks bigboss for the info
Click to expand...
You don't have to use MW Office ( of course you can use but not necessary )
You should "MatLab Simulink" to predict the characteristics of a Fractional PLL.Simulink is a Matlab tool and it's designed for system/behavioural/general purpose system simulations.
VSS has also very fine simulation design guide for PLLs, it's of course also used..
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top