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rfLib ACPR source usage
I'm attempting to use the ACPR_source block as an input to my circuit. I have baseband I and Q files for a modulated waveform, sampled at 30.72MHz. I'm encountering a problem that I believe is due to...
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Does anyone ever meet this error in your simulation?
Hi all,My transition simulation is from 0 to 2us, but a error occurs in the 1.5 us as "spectre - 7031 SST2 error invalid control value".Anyone can help? Thanks a lot~~~
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Issue about the transistor sizing of the last stage for loading pin...
Hi,I am designing padframe of the technology IBM7RF on IC614. Since my circuit will have a output signal at 1 GHz, I have to consider the capacitance from chip package to PCB which could be over 100pF...
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What is the USE of No of Harmonics/maxacfrequency if one does simulation for...
Dear All, Can anybody please tell "What is the USE of No of Harmonics/maxacfrequency if one does simulation for IIP3/P1dB" in PSS analysis.
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Cadence simulate ring oscillator's output in frequency domain (continuous wave)
Hi,Could anyone please help me with this question? I need to simulate my ring oscillator's output in frequency domain, showing a continuous spectrum waveform as it can be seen from spectrum analyzer...
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Working with DC sweeps and OP
Hi all,I know it's not appealing to write one's first post in an RF focused group talking about DC but please bare with me :)I am interested in plotting some MOS DC parameters like gm, gmoverid, Cgg,...
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Using .PWL for Input waveform for doing PSS (shooting method) & Pnoise
Dear All,I was trying to simulate my circuit (using PSS/PNOISE) which has mixer for downconversion.The clock for the mixers are coming from another circuit block.When I simulate with my clock source...
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How to simulate Phase Noise of the clock at rising edge and falling edge...
Dear all,I am trying to measure the phase noise of my circuit output clock at rising edge and falling edge separately.I am able to measure the overall phase noise of the clock using PSS/PNOISE but...
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PSS analysis Vs Transient Simulation
hiiiiii I have designed a Push pull power amplifer to deliverd a 500uwatt power to 50 ohm antenna.the problem what i ma facing is that- when i am doing transient simulation and plotting the power at 50...
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Phase noise to phase jitter for square waves
Hi,I'm simulating a free running oscillator for jitter and I have the following question:I have to run a "PNOISE - sources" simulation in order to recieve phase noise, since I have to filter the phase...
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Showing more Number of opPointLabelSet in CDF for DC Op point Annotation
Hi friends,I want to see more number of Transitor DC parameters (vgs,vdsat,gm,vth,gds,vds,id....etc) in Schematic editor using Results--> Annotation-->DC Operating Points.But CDF edit is only...
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Using Montecarlo simulation for finding Rise and fall tile of a SETTLING...
Dear All,I want to do MONTE_CARLO simulation for my circuit for finding rise time and fall time.The output is settling after 800u s.I have to do some pre-processing before finding the last expression....
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PSP analysis for calculating capacitance looking into the drain of the nfet_rf
Hello All,I am trying to calculate the value of the capacitance looking into the drain of the transistor using Y11 parameters( imaginary part). The problem I am getting is " I get a resonant peak" ....
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GaN HEMT Models for Spectre
Are there any GaN HEMT models available for RFIC design using Cadence ADE? What is the best option to create a new HEMT model to be used for RFIC design using Cadence ADE?
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No Insufficient Memory Promble in PSS/Pnoise simulation
Hi,I have some promblems on VCO Post-simulation of PSS and Pnoise. The Frequency of the VCO is 20GHz. When I simulate the schematic, everything is good. But when I comes to Post-simulation, there will...
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sensitivity analysis on SP simulation?
Hello, Has anyone investigated to extend the spectre sensitivity analysis ( ac, dc) on sp simulation at a fixed frequency? Regards
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Does anyone ever meet this error in your simulation?
Hi all,My transition simulation is from 0 to 2us, but a error occurs in the 1.5 us as "spectre - 7031 SST2 error invalid control value".Anyone can help? Thanks a lot~~~
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How to print two PNOISE outputs into files using OCEAN script
Dear All,I have to print the Two PNOISE Outputs ( You may see the Pnoise analysis command below in the code) into a file using ocean script.But the below script is not able to write into the file. It...
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Ron of nmos in Cadence for deep triode region of operation
Hey,Can anyone help me with plotting the on resistance of nmos transistor in Cadence when we do dc analysis. I am trying to understand how ron changes with Vgs voltage. How do we do this plot. Any help...
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Executing multiple statements inside if-else command in OCEAN
Dear All,I need to implement something like below:-Is it possible to do so in OCEAN ? if( statement is true) Execute---statement-1 Execute---statement-2 Execute---statement-3 else...
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