Test Happens - Teledyne LeCroy Blog

Test Happens.

13 September 2018

Decision Feedback Equalization

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Figure 1: DFE filter output is based on a linear combination of previous bit decisions In debugging high-speed serial links , one must b...
30 August 2018

The Causes of Ground Bounce and How To Avoid It

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Figure 1: This cross section of a 100-MHz microstrip transmission line shows us how a return path should look We've been discussing...
29 August 2018

A Walk-Through of Ground-Bounce Measurements

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Figure 1: The trigger pulse from the MCU is one clock cycle in width In earlier posts in this series, we've explained what ground b...
16 August 2018

More on Quiet-Low I/O Drivers and Ground Bounce

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Figure 1: To configure an I/O driver as a quiet-low line, its output is connected directly to Vss on the die Ground bounce can plague...
07 August 2018

About Ground Bounce and How to Measure It

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Figure 1: Shown are five I/O drivers within a package driving signal lines on a PC board Designing and/or troubleshooting a system wit...
23 July 2018

Feed-Forward Equalization

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Figure 1: FFE creates a number of delayed versions of the input signal that are then added back to the signal with proper weights In a...
17 July 2018

Continuous Time Linear Equalization

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Figure 1: A CTLE implementation at the receiver end of a serial-data channel seeks to boost higher frequencies while not boosting noise an...
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