Eye diagrams can provide insight into the performance of a serial data link. While engineers have used eye diagrams for decades, oscilloscopes continually get new features that increase its value.

An eye-pattern diagram is a good method for quickly visualizing and accurately measuring timing jitter (see the figure, b). Typical communications applications usually seek a BER of about 1 × 10-12.

What we arrive at is the classic “bathtub curve” that is often associated with jitter measurements. The curve relates the receiver's timing margins to the BER based on the signal's jitter. It allows ...

Eye diagram analysis provides a powerful visual tool to assess the quality of high-speed signalling by revealing the cumulative effects of jitter, noise, crosstalk, and other distortions.

The ADS DDR Bus Simulator offers rigorous DQ and DQS eye calculations to arbitrarily low BER levels, including the 1E-16 contour specified by JEDEC.

Anritsu's MP2100A BERTWave series features a single instrument that can conduct 10 Gbit/s BER measurements and eye pattern analysis simultaneously, eliminating the need to use separate instruments.