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.

error in calculating phase noise in TSPICE

Status
Not open for further replies.

surma

Newbie level 4
Newbie level 4
Joined
Apr 25, 2014
Messages
7
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Visit site
Activity points
46
I m designing a three stage ring oscillator in LT spice and getting a error in phase noise analysis

i use the syntax and getting error below:

Error on line 826 : .noise n1 v1 dec 100 100 500
Bad .noise syntax: .noise V(<out>[,<ref>]) <src> <oct, dec, lin> Npoints StartFreq <EndFreq>
Unknown node in .ic card: "out" -- ignoring
Fatal Error: Syntax error in .NOISE command.

designed oscillator tuning range 800MHz to 11000 MHz.

Thanks!
 

Maybe you really want a transient based simulation and a .tnoise
analysis? I don't think small signal analysis is appropriate to a
large signal, ring oscillator design.

Your error message indicates it wants V(n1,v1) as an argument,
not n1 v1 - might look at the docs for examples.
 
  • Like
Reactions: surma

    surma

    Points: 2
    Helpful Answer Positive Rating
thanks... it works

noise is given in the µV/Hz½ unit ...plz tell me how to convert it into dbc/hz
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top