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Ok so I'm back with cadence unfortunately... so I remade my circuit, I do the tran analysis, its oscillating around 1.2GHz which is great but for some reason I can't do a damn PSS analysis... I keep getting this error for my MOSFET's:
ERROR (SPCRTRF-15177): PSS analysis doesn't support...
well that's a bit harsh... I'm only seeking advice here... maybe someone else can provide feedback if you don't want to help... thank you for your feedback so far but I think I'll try @Audioguru suggestion and hope for better frequencies...
So I've tried your suggestion and used a step pulse for vdd (1.2V) and got a oscillation frequency of ~16GHz and a phase noise of -68 dBc/Hz...
Is this normal? I think there is something wrong...
The inverters have 120nM and 100nM each...
HAHAHAHAHAHAHAA OMG I've almost died of laughter! I'm far from professional, I'm just a poor student just starting out to learn engineering... there is very much information that I have to assimilate and put together by myself...
Anyway I'll try your suggestions from post #6 and come back with...
I need to do a PSS analysis to determine the frequency of oscillation and the influence of parameters such as supply voltage, temperature or load capacitance over the oscillation frequency, a transient analysis for the simulation of the circuit and a PNOISE analysis to determine the phase noise...
yeah... I totally forgot about that... anyway
Cadence Virtuoso is giving me a headache, its so clunky and I can't even find parts that I see in online tutorials...
Can someone recommend a great FREE circuit simulator? One in which I can easily manage the three analysis I've mentioned in post #1.
Hello Forum! I need some guidance. Please follow the screenshots in the attachments.
So first I made the schematic for the inverter, then I've setup the symbol for it and using that symbol I've quickly put together a 3 stage ring oscillator. I've got here using information found on google...
Hello! Can someone point me to some detailed matlab tutorials that can help me with my assignment? Or a few explanations would be much appreciated.
IIR filter Butterworth method
Fpas s=9kHz, Fstop=11kHz, Apass=1dB, Astop=25dB and Fs=40kHz
IIR filter analog prototype
H(s)=...
Hello! Can someone point me to some detailed matlab tutorials that can help me with my assignment? Or a few explanations would be much appreciated.
IIR filter Butterworth method
Fpas s=9kHz, Fstop=11kHz, Apass=1dB, Astop=25dB and Fs=40kHz
IIR filter analog prototype
H(s)=...
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