Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic 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

Simulation of flicker noise

Status
Not open for further replies.

rajanarender_suram

Full Member level 4
Joined
Jan 20, 2006
Messages
215
Helped
22
Reputation
44
Reaction score
9
Trophy points
1,298
Activity points
2,375
How to simulate flicker noise in MOSFETs using Cadence?(looking for setup)
 

lavitaebelle

Member level 4
Joined
Jan 26, 2006
Messages
75
Helped
24
Reputation
48
Reaction score
12
Trophy points
1,288
Activity points
2,131
Firstly you need to be sure the model you are using has flicker noise modelled.

Do the usual noise analysis from say 0.1Hz to a high frequency. Zoom in the low frequency portion of the Noise Spectral Density(NSD) and see the noise behaviour. You can use the noise summary if you are using spectre. If the flicker noise is modeled, you will see the NSD dropping from 0.1Hz to a few 100Hz or Khz and then becoming flat.
 

rajanarender_suram

Full Member level 4
Joined
Jan 20, 2006
Messages
215
Helped
22
Reputation
44
Reaction score
9
Trophy points
1,298
Activity points
2,375
Thanks but i need a setup such that only flicker noise is dominant, so that i can say the total noise i got in the analysis is flicker noise only.
 

lavitaebelle

Member level 4
Joined
Jan 26, 2006
Messages
75
Helped
24
Reputation
48
Reaction score
12
Trophy points
1,288
Activity points
2,131
the noise corner frequency tells you what dominates at what frequency. Below the corner frequency flicker noise dominates and after that thermal noise.

If you are looking for an automated setup, you can ask the simulator to find the thermal noise spectral density first, which is fairly constant over the entire bandwidth of measurement. So large frequency noise is thermal noise. Then subtract this NSD from the total NSD. The remnant will give you an idea of flicker noise and also corner frequency.

Not sure if this is exactly what you are looking for.
 

Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top