Cadence® system design and verification solutions, integrated under our System Development Suite, provide the simulation, acceleration, emulation, and management capabilities.
System Development Suite Related Products A-Z
Cadence® digital design and signoff solutions provide a fast path to design closure and better predictability, helping you meet your power, performance, and area (PPA) targets.
Full-Flow Digital Solution Related Products A-Z
Cadence® custom, analog, and RF design solutions can help you save time by automating many routine tasks, from block-level and mixed-signal simulation to routing and library characterization.
Overview Related Products A-Z
Driving efficiency and accuracy in advanced packaging, system planning, and multi-fabric interoperability, Cadence® package implementation products deliver the automation and accuracy.
Cadence® PCB design solutions enable shorter, more predictable design cycles with greater integration of component design and system-level simulation for a constraint-driven flow.
An open IP platform for you to customize your app-driven SoC design.
Comprehensive solutions and methodologies.
Helping you meet your broader business goals.
A global customer support infrastructure with around-the-clock help.
24/7 Support - Cadence Online Support
Locate the latest software updates, service request, technical documentation, solutions and more in your personalized environment.
Cadence offers various software services for download. This page describes our offerings, including the Allegro FREE Physical Viewer.
Get the most out of your investment in Cadence technologies through a wide range of training offerings.
This course combines our Allegro PCB Editor Basic Techniques, followed by Allegro PCB Editor Intermediate Techniques.
Virtuoso Analog Design Environment Verifier 16.7
Learn learn to perform requirements-driven analog verification using the Virtuoso ADE Verifier tool.
Exchange ideas, news, technical information, and best practices.
The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information.
It's not all about the technlogy. Here we exchange ideas on the Cadence Academic Network and other subjects of general interest.
Cadence is a leading provider of system design tools, software, IP, and services.
Do I need to turn on an option or options to allow resistor, which is modelled by the ahdl code, to generate noise in noise simuation in ADE environment?
I just simply injecting a current from an ideal current source to that ahdl modelled resistor but I cannot get any 4KTR noise.
I did try to replace that resistor by an resistor from analogLib and run noise sim, I can successfully get the 4KTR noise.
You'd need to use the white_noise function in VerilogA to do this. Look at the Verilog-A Language Reference manual and search through for white_noise - where it's described there's even an example of how you'd code the 4KTR noise.
In reply to Andrew Beckett:
The code is provided and I do check it has the white_noise function there, but I still get ZERO noise output. This makes me think of what I miss in the whole process.
Any hint or information you need?
In reply to eesm:
I am running "noise" analysis. I am using Spectre and the version is 10.1.1.441.isr25 32 bit.
In the analog form, where can I see the noise is explicitly switched off?
I've attached the Simulation->Options->Analog (Main Tab, scrolled to the bottom). Note that this is only in IC615 (I think). If nothing is selected, all noise sources will be on.
As I said, it's unlikely this is it though. Probably best if you contact customer support and then you can send them your example netlist (say). Or maybe you can post it here (assuming it's yours to post and is not somebody else's IP).