Test Voices

- June 28, 2012

Members of the test industry step up to share their insights, observations, and questions.


PAM4, error correction bring 400GbE test challenges

  • 10.12.2017

Now that 400 gigabit Ethernet is a reality, engineers will have to deal with forward error correction brought on by the need for PAM4 modulation across eight lanes of data traffic.Read More...

Keeping old equipment alive

  • 08.23.2017

When an old HP 204D audio oscillator isn’t working, a new component source comes to the rescue for a same-day fix. Read More...


Can we accept autonomous vehicles with autonomous bugs?

  • 08.07.2017

Are the many bugs in today’s high-tech cars an indication of what may impede the widespread introduction of self-driving cars? Read More...


My NO/NC misassumption reminder

  • 12.27.2016

A trivial repair reminded me that making assumptions can often cause problems ranging from trivial to tricky in debug and repair situations. Read More...

Why does this year have an extra second?

  • 12.14.2016

International timekeepers have decreed that the atomic clock is due a leap second. Read More...

What DFT history teaches us

  • 08.03.2016

An EDN article from 1988 shows the state of design for test at that time, now see how it has evolved. Read More...

MAX232: The classic IC lives on since 1988

  • 07.28.2016

Maxim Integrated introduced the MAX232, a single 5V powered RS-232 line driver and receiver in 1988 and it's still used in new designs today. Read More...


Three predictions on the state of signal integrity

  • 05.05.2016

Signal integrity evangelist Eric Bogatin makes three predictions on high-speed signals based on DesignCon 2016.Read More...


Take scan test out of the critical path

  • 03.24.2016

Design for test and pattern recognition are shifting left, moving up in the IC design cycle. Read More...

The age of gravitational wave astronomy has begun

  • 02.25.2016

The discovery of gravitational waves that Einstein predicted is not only a scientific accomplishment, but a measurement accomplishment.Read More...


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