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Cadence Hotfix error
Ā Hello,While installing Cadence version 6, we have installed all the necessary packages successfully and we can open the schematic environment evenĀ but the hotfixes of Assura 141 and IC616 are giving...
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Noise correlation simulation in pnoise
Ā Hi,1. I am using IC6.1.6-64b.500.1 and my simulator version is 10.1.1.296.isr18 64 bit2. I am simulating a basic downconversion mixer as shown in attached figure. I want to know the correlation...
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Smith Chart Bug
Somehow when you add label in Smith Chart Plot window, it's really difficult to move label marque on smith chart and sometimes impossible to edit label captions.Hope someone fixes it in next release.
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Spectre temperature coefficient oddness
We have a tool that makes subcircuit models of passive components (an integrated inductor in this example).Ā It can now produce models that have temperature dependence, and in that case the output...
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oscillation frequency estimate using harmonic balance
Ā Hi,Ā I am working on a crystal oscillator.Ā I want to estimate frequency pulling over temperature caused by circuit (excluding crystal).Ā I am looking at something around 0.01ppm/C level or less.Ā It...
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Phase Noise and S-Parameters
Hi all,I am simulating a VCO using an S-parameters inductor. I have the lumped elements pi-model fitted with it.When I run PSS, transient, DC and so on, I get results almost fully compatible between...
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Problem in running RFworkshop examples
Hi,I tried running some examples in RFworkshop. But while running simulation in ADE using readymade saved states I get the following error:Ā ERROR (SPECTRE-15): Unable to run circuit preprocessor...
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IC6 Monte Carlo - How to delete a few points from the final results
Hi,Does anyone know how to delete certain points from the final output of a Monte Carlo run and redraw a histogram for example?I've run a Monte Carlo with 100 point or so, but 2 values are unbelievable...
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Please help! RFDE simulation error
Hi All,I am using rfde to simulate a circuit with transformers and self designed inductors. However, when I'm doing post layout simulation using ADSsim of RFDE, I got a warning which says "Warning...
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Extract parasitic capacitance of MOSFET
Hi everyone,I tried to extract parasitic capacitance of MOSFET. I use Cadence IC615, in ADE L: Result -> Annotate -> Show parasitics. And what I see is:Error* hdbGetLibName: argument #1 should be...
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VCO jitter measurement in transient analysis and pnoise analysis
Hai sirĀ Ā Ā Ā Ā I am simulating Ā active inductor VCO with free running frequency of 5GHz in 65nm technology.Ā Ā Ā Ā Ā version IC 6.1.3Ā Ā Ā Ā Ā using transient analysis (enabled transient noise) the...
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SpectreRF - How does it work?
Hi,I am struggling so long with SpectreRF, getting heavy convergence issues and results which are unexplainable.I do not really understand how it works and there is no documentation whatsoever - which...
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ERROR (OSSHNL-524) while using nport
I am using IC6.1.6-64b.500.1 and my simulator version is 10.1.1.296.isr18 64 bit.When I simulate old circuits (designed inĀ IC6.13) containing analogLib/nport componentĀ I get this error:"ERROR...
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EVM simulation using envlp analysis
Hi,I am trying to simulate EVM of a MUX based QPSK modulator as shown in attached figure. There are 4 1VpeakĀ sines at 5GHz with phases 0, 90, 180, 270. The select switch of the MUX is controlled by...
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Model Parameters as "output" expressions
Instead of printing model parameters, can we create an expression in ADE-L or ADE-XL to display value of the associated model parameter in output field ?
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Understanding pnoise PSD: a simple test with resistors
Hello,I would like to understand the pnoise simulations.Triggered by the Cadence Application note "Jitter Measurements Using Spectre RF", I tried to do a pnoise simulation on a simple circuit. I...
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Infotimes
Infotimes = [. . .]I know you can use this to plot at individual points e.g: Infotimes = ["10u" "20u" "50u"], how about range ?
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PSS and HB vs. Transient having touchstone models from HFSS
Hello every oneI have designed a 100GHz oscillator and in order to see how much power it can produce I run different analyses. The issue is that the output voltage is quite different when I use...
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Noise Summary at infopoints ?
Can we get noise summary for individual infopoints when running pnoise analysis ?Thanks.
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Adding two PAC sources with differnt frequency range/ sweep for a PAC analysis
Dear All,I want to excite a LPTV system with two PAC sources with separate frequency range.For example:-I have an LO frequency "Fc". PSS has been done with Beat frequency of "Fc".Now I want to do a PAC...
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