ICD Adds Matched Delay Optimization to Stackup Planner


Reading time ( words)

In-Circuit Design Pty Ltd (ICD), Australia, developer of the ICD Stackup and PDN Planner software, has released a Matched Delay Optimization feature for the Stackup Planner. 

Signals propagate at the speed-of-light in free space. However, this speed varies dramatically depending on the surrounding dielectric materials. Each layer, of a multilayer PCB, can have a very different propagation speed. This is particularly important for the latest high-speed DDR3/4 memory devices. The new “Matched Delay Optimization” feature, of the ICD Stackup Planner, allows you to not only match the length of busses, but takes this one step further by automatically calculating the appropriate length required to match the delay exactly. The integrated field solver simulates the flight time, of each signal layer, to quickly give you the results you need to effectively route memory.

ICD.jpg 

“A matched length of 2.3 inches for a DDR3/4 Data lane can produce up to 70ps delta, between signal layers, leaving the timing way outside the required DDR3/4 setup and hold times,” said Barry Olney, CEO. “Designers need to pay strict attention to the signal propagation, on each layer, ensuring the total flight time of the critical signals match, regardless of length. The ICD Stackup Planner now allows you to optimize this delay."

The relative signal propagation is displayed as a bar graph, once the matched length has been set. Selecting “Matched Delay” automatically optimizes the length, of each signal layer, to match the maximum delay. The user can then route the data lane, to the exact delay, in their preferred design tool.

About In-Circuit Design Pty Ltd

In-Circuit Design Pty Ltd, based in Australia, developer of the ICD Stackup and PDN Planner software, is a PCB Design Service Bureau and specialist in board level simulation. Visit www.icd.com.au.

Share

Print


Suggested Items

What Is the Proper Role of App Notes?

07/15/2020 | I-Connect007 Editorial Team
There’s a disconnect in the design segment. Some designers say they follow app notes every time, but a growing number of designers approach app notes with a wary eye. Many of the leading voices in the design community have been advising designers not to rely on app notes without running the numbers first. We decided to ask PCB design instructors Rick Hartley and Dan Beeker to help us shine a light on this issue.

Just Ask Happy: Calculating Trace Temps in a Vacuum

07/07/2020 | I-Connect007 Editorial Team
We asked for you to send in your questions for Happy Holden, and you took us up on it! The questions you've posed run the gamut, covering technology, the worldwide fab market, and everything in between. Enjoy.

Just Ask Happy: PCB Design For EE Undergrads?

07/02/2020 | I-Connect007 Editorial Team
We asked for you to send in your questions for Happy Holden, and you took us up on it! The questions you've posed run the gamut, covering technology, the worldwide fab market, and everything in between. Enjoy.



Copyright © 2020 I-Connect007. All rights reserved.