Keysight Technologies' Method of Implementation Guide Now Supports PCIe 3.0 Impedance, Return Loss Tests Using ENA Network Analyzers


Step-by-Step Document Simplifies Cable Compliance

SANTA ROSA, Calif., July 13, 2015

Keysight Technologies, Inc. (NYSE: KEYS) today announced the availability of its Method of Implementation (MOI) guide for PCIe 3.0 Transmitter/Receiver (Tx/Rx) Impedance and Return Loss Tests (Hot TDR/RL) using the ENA Series network analyzer's enhanced time domain analysis option (E5071C-TDR). The guide details procedures for time and frequency domain measurements and is used with a test package, such as Keysight's state file, to simplify compliance testing and setup.

With the increase in bit rates, impedance matching has become all the more critical due to its significant impact on the eye diagram opening/closing. One unique approach to overcoming this challenge is to evaluate the impedance of PCIe 3.0 active devices (Tx/Rx) under their power-on and operating state to quantify multiple reflection effects. This hot TDR/hot return loss measurement provides engineers new insight into signal integrity issues and assures a device's performance in multi-gigabit rates.

"Keysight MOIs are available for a number of different high-speed digital applications, such as USB, DisplayPort and Ethernet," said Akira Nukiyama, vice president and general manager, Keysight's Component Test Division, Kobe. "Our newest addition to this list, the PCIe 3.0 MOI, is just one more example of how we are working to give our customers the functionality they need to address any high-speed measurement challenge."

The PCIe 3.0 MOI for use with the E5071C-TDR is available now at An image of the new ENA Series network analyzer's enhanced time domain analysis option is available at

About ENA Option TDR

The E5071C ENA-TDR is an application embedded in the ENA network analyzer that provides a one-box solution for high-speed serial interconnect analysis. The software delivers three breakthroughs for signal integrity design and verification: 1) simple and intuitive operation, 2) fast and accurate measurements simultaneously in the time domain (TDR/TDT) and frequency domain (S-parameter), and 3) ESD robustness for reduction of maintenance cost.

About Keysight Technologies

Keysight Technologies (NYSE:KEYS) is a global electronic measurement technology and market leader helping to transform its customers' measurement experience through innovations in wireless, modular, and software solutions. Keysight's electronic measurement instruments, systems, software and services are used in the design, development, manufacture, installation, deployment and operation of electronic equipment. The business had revenues of $2.9 billion in fiscal year 2014. Information about Keysight is available at

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Janet Smith, Americas
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