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

help with proper noise source in Cadence

Status
Not open for further replies.
M

msmahani

Newbie level 3
Joined
May 12, 2009
Messages
4
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,315
Hello All

I am simulating a mixer in cadence and for measuring its NF I am using PSS+PNOISE.

in Pnoise setting, for setting input and output we have options of voltage source and probe for output. The former option takes into account the noise added by port's internal resistor itself while the latter does not.

The results differ by 3-4 dB which is higher for the voltage source.

I tried the PNOISE analysis for a simple Pi type resistive attenuator and compared the results of both cases with noise analysis in SP. PNOISE simulation results with Probe option for output coincides with NF from SP.

Now My question is which one is correct or which will be seen during the measurement?

Thanks,
Mohammad
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top