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.
I am using a capacitive load in charge pump in CADENCE h035 technology. But when I am creating charge pump symbol and using it in other circuit its showing errors while simulating (runs upto 1% and the spectre error) I know its due to the load at the output port of Charge pump but I dont know how to use it or replace it because that output capacitance is very important.
Please suggest me something.
Thanks in advance.
I would respectfully ask you to read the forum guidelines. A few points:
But this kind of thing is all in the guidelines.
In reply to Andrew Beckett:
In reply to Mushir:
No circuit was attached, and you didn't show the error...
I pasted the circuit schematic but I dont have any idea why its not showing in the post. It went through some moderation also before getting posted. I am new to this forum so I am not sure what is the problem with it.
Use the Options tab at the top of the page to attach a picture (e.g. a png file) rather than trying to paste in an image.
I have attached the screenshot of the circuit scematic and error screen.
This is the error screen
It's still not really enough to go on. Presumably the convergence difficulty is caused by some numerical instability in the circuit - and without seeing the data, it's going to be very hard to debug (you didn't mention which device makes the difference). Usually small timesteps are caused by discontinuities in the device models, combined with large component values (or negative component values). I see you have a 500pF cap there, which is large (for IC) but not immense. There appear to be some 50uF capacitors too - but maybe that's just the resolution of the image - driving these with a 10u/0.5u transistor seems a bit hopeful.
Maybe you should contact customer support? Then we can properly look at your data, maybe.