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smooth dft
Hi,I am using ADE-XL and am doing DFTs. I would like to know if I can get a smoothed DFT by for instance making a moving average with a couple of given points (let's say 10) ? as I would need to...
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fsdb file not refreshed during simulation
Hi,I have ADE output format set to fsdb, and planned to read waveform from spectre transient simulation from a waveform viewing tool.The issue is that I waveform doesn't show while simulation is...
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Netlister's subcircuit naming convention
Hi everybody,I just stumbled upon a case where the netlister generated subcircuit names as `subckt libraryname_cellname_cellviewname port_list` instead of the usual `subckt cellname port_list` in the...
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ADE L plotting error: vector::_M_range_check
I face annoyingly often the problem that ADE does not plot any results, while CIW reports the error "The wsReloadCommand command generated an exception vector::_M_range_check.". The problem is...
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CMOS inverter PAC output
Hi everyone,I'm simulating a basic CMOS inverter driven by an ideal squarewave at frequency say 1GHz. Inverter output is a squarewave too. With a PSS I can see its spectrum and it's of course made of...
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Noise spectral density of an amplifier
Dear Sir,This to enquire about the procedure to measure the noise spectral density of an amplifier at the output in Virtuoso ADE.Regards,Subhajit
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Unit of self_gain in BSIM4(V4.5)
Hello,I am characterizing a BSIM4 MODEL (V4.5). In my variable mapping, I have different dc parameters to be mapped and one of them is self_gain with the unit of rall. When I run the code, I get an...
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Graphics woes while working remotely from home
I'm working from home doing IC layout, so there's a lot of random, complex graphics on my monitors at any given time. I have also heavily edited my display.drf file to give me all the colors I like....
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liberate error messages doc.
LIB-1008 LIB-500 LIB-501 LIB-711 LIB-8 LIB-800 LIB-906 LIB-907 LIB-933 LIB-940 LIB-942 943 966search in cdnshelp, no result.
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Exporting Cell Count and Cell Layers to text file
Dear All,I have to export the logic cell counts, types, their co-ordinates with different layer into a text file from the gds file. Can you please suggest how to start?
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Is it possible to pour a plane in Virtuoso?
I have a design that comprises an array of cells that each contain an isolated stack of VDD! and VSS! vias. The cells are made such that they already do correctly hook themselves up to VDD! and VSS!...
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Verilog-A control of temperature?
Is it possible to control temperature as a dynamic parameter not through `paramset` or other dynamic parameter related arguments to `tran` but via Verilog-A? The reason I'm asking is I have an setup...
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PSS sweep in ADE-XL
I had an ADE-L state, what I would like to move into ADE-XL to do corner simulations. My problem is that the PSS's sweep can not be set in ADE-XL. My PSS has some tstab, and I would like to avoid...
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Importing HSPICE .sp file and .lib libraries into Cadence Virtuoso
Hi,I am developing library file for the transistor model and .sp file to run the file and would like to import this into Virtuoso so that I can work on circuit level. Please help me importing SPICE...
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VCO design problem
Hi all,I am having a strange problem in designing my VCO.The problem is: When I use this kind of biasing and sweep my ideal capacitor to change the frequency, freq varies but VCO output swing changes...
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Parameters in hierarchical schematics
Hello,I am making a hierarchical schematic, where at the lowest layer I have an inverter, with the multiplier set to pPar("M") so I can scale the gm of the inverter. From 6 of these inverters, I made a...
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ViVA XL export to vcsv failed
Exporting a waveform into a vcsv file returns the error:The wsSaveTraceCommand command generated an exception basic_string::_S_construct null not valid.Only the first row of the vcsv file is created...
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Extracting 1dB bandwidth from parametric sweep-DFT results
Hi all,I am using ADE assembler.I ran transient simulation and swept the input frequency (Fin) of the circuit. And I use Spectrum Measurement to return a value of the fundamental tone magnitude...
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how to add section info to extsim_model_include?
i had encountered error message like this before. but in liberate, i did not find the entry to input section info.
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VHDL-AMS std and ieee libraries not found/empty
I'm trying to set up a VHDL-AMS simulation, so I made a new cell, selected the vhdlamstext type, and copied some example from the web. But when I hit the save and compile button, I first got the...
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