Allegro is PCB design software by Cadence.

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How to carry out signal integrity simulation with IBIS models

I need to determine if there will be high speed effects on the clock signal. I have not done such a simulation before. I have the IBIS models of the circuit components involved. I think I still need ...
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14 views

How to move multiple symbols in Allegro?

Can I select multiple symbols in Allegro and drag them? They are all on the top layer and I just need to move them to make space for another component.
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26 views

Is it possible to edit gerber file using allegro?

I want make some corrections in gerber file. Is it possible using allegro? Or is any other better method to do it?
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60 views

How to fix line to line spacing error in Allegro?

I have a line to line spacing error in Allegro. I don't know how to fix it. If I make the width of the trace smaller, it gives me a line to width error. And I also don't understand Why I get this ...
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25 views

Fixing “L W” drc error in allegro?

How do I fix an "L W" DRC error in allegro? I know that this indicates a problem with the line width but I don't know how to fix it. I am routing traces to a component that is very small and when two ...
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51 views

Removing a board outline in allegro?

In allegro, is it possible to remove or re-size the board outline after I have laid out all my parts?
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45 views

Problem with circuit cam, can't view my top layer?

I have a circuit laid out in allegro and I'll be milling it out on a board router. I'm using Circuit Cam to produce the files needed for the board router. I have three layers, a top layer, a bottom ...
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26 views

Allegro: How do I view the identifiers of all my components?

I'm using Allegro PCB editor to layout a board for a circuit that I'll be cutting out on a board router. In allegro PCB editor I just imported the netlist and I used quickplace to automatically place ...
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1answer
71 views

Pad with 4 pins in allegro cadence (orcad)

Sorry for silly question, but how to draw pad with four pins? It's not just a custom shape of pad, it has 4 pins. Thanks
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101 views

Pin numbering in OrCAD?

I'm getting another error in OrCAD when I try to create the netlist. When I try to create the netlist I get this warning: ERROR(ORCAP-36022): Pin number missing from Pin "DRIVE" of Package ...
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127 views

How to fix my warning in OrCAD?

I'm doing a schematic on OrCAD and when I did the Design Rules Check I got a warning that says: Checking Electrical Rules WARNING(ORCAP-1608): Net has no driving source N30274 I have a fairly ...
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180 views

How do I overlap wires in OrCAD capture without having the two wires have a node?

I'm doing a schematic for this in OrCAD capture CIS. In laying out my schematic I need to draw one wire going through another wire, but not necessarily intersecting with it via a node. When I drag a ...
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1k views

How to convert files from Cadence to Eagle CAD?

Is there any free software that can convert Cadence files (.dsn, .opj, .brd) into Eagle CAD files (.brd, .sch)?
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1k views

Where is Cadence's Allegro Design Entry HDL 16.5 Snap o Grid Option?

I am looking for the snap to grid option? Any idea how to enable it? I did try looking on Cadence forums and documentations, but I did not find anything. Also any idea how I can move ...
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690 views

H-bridge output filtering

I'm driving A4952 motor driver with about 25khz PWM signal, with a simple coil connected as a load between OUT1 and OUT2. VBB is variable, testing with 15V but changing it doesn't alter the results. ...
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1answer
290 views

Programmatically generate padstacks for Cadence Allegro

I am laying out a complex board, with many components. One of the steps is to create padstacks for the footprints of each component. It turns out I have (nearly only) two types of padstacks to ...
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680 views

PCB footprint of Xilinx Kintex 7 FPGA [closed]

I am laying out a board with a Xilinx Kintex 7 FPGA (serial number XC7K70TFBG676). The first step is to create a footprint of the FPGA for my layout tool, the Cadence Allegro PCB Editor. Does Xilinx ...
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2answers
55 views

Why does the data sheet for A1362 have conflicting procedure to program sensitivity?

This data sheet shows two different ways to program the sensitivity of the A1362 on pg. 18 2nd paragraph under "Hold Mode" says "Powering the VCC supply automatically causes the device to enter the ...
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2answers
701 views

First time PCB layout recommendations [closed]

I have been assigned the task of laying out an A4-sized 10-layer PCB board using Allegro. Someone else is doing the schematics, which I will receive soon (all I know now is that the board contains an ...
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194 views

What is the proper way to set the offset and sensitivity parameters for Allegro A1362 so MSP430 properly digitizes them?

What is the proper way to set the offset and sensitivity parameters for Allegro A1362 Programmable Linear Hall Effect Sensor so that TI MSP430 5528 properly digitizes them? Using observed values of ...
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2k views

Library of footprints for Cadence Allegro / PCB Editor

I keep having to design my own footprints for Cadence Allegro / PCB Editor even for standard parts. There are lots of libraries for schematic capture symbols but I am having trouble finding ...
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1answer
218 views

Allegro: plotted artwork only has hatched pads

I am trying to find my way around Cadence Allegro. My aim is to make a PDF file with the copper mask. I made a schematic with capture, created a PCB layout with Allegro PCB Designer and created ...