88 DESIGN007 MAGAZINE I MAY 2020
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This Month in Design007 Magazine:
Design Economics With Kelly Dack
E
Andy Shaughnessy recently
spoke with Kelly Dack—CID,
CID+, and a PCB designer and
instructor who has worked in
the design and manufacturing
segments over the years. Thanks
to his background, Kelly provides an intriguing
viewpoint on cost-aware design and the philos-
ophy of design economics in general.
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Beyond Design: Transmission Line
Termination
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Whenever a signal meets an
impedance variation along a
transmission line, there will
be a reflection, which can se-
riously impact signal integrity.
By understanding the causes of
these reflections and eliminating the source of
the mismatch, a design can be engineered with
reliable performance. Barry Olney looks at how
to effectively terminate transmission lines.
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Mentor Video: Get To Know DDRx,
SerDes, and PDN Tools
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This digital theater presentation demonstrates
how HyperLynx contains full, automated pre-
and post-route design flows for DDRx, SerDes
channel, and power delivery network (PDN)
design, with workshops that guide you through
the process to get you up and running quickly.
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Lightning Speed Laminates:
Understanding Dk Data Key to
Cost-aware Design
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In the development stages of a
circuit for a new PCB applica-
tion, there are usually several
iterations to the circuit. These
many changes can be costly,
and it is not uncommon for a
project to have 4–8 changes before it can be re-
leased to the market. According to John Coon-
rod, one item that can substantially reduce the
number of changes and the associated costs is
the use of a good circuit simulation software.
John Coonrod
Kelly Dack
Barry Olney
