Agilent/Keysight U7242A

The Keysight U7242A is a USB 3.0 test fixture that provides direct access to transmitter and receiver measurement points for compliance and pre-compliance testing. Designed with SMA connectors for oscilloscope and J-BERT integration, the fixture supports both single-ended measurements per USB 3.0 specification and differential measurements via InfiniiMax active differential probe connections. It enables characterization of active bus signaling for USB 3.0 and USB 2.0 traffic, transient and steady-state power analysis, and device current measurement breakout.

The fixture includes dedicated test sections for host and device TX/RX paths, mid-bus probing for active traffic monitoring, and power probing capability. All Far End (TP1) electrical measurements - including unit internal, SSC slew rate, template, peak-to-peak differential output voltage, RMS random jitter, and maximum deterministic jitter tests - require this fixture. Direct SMA connections enable straightforward signal routing to measurement instruments, while integrated probing points facilitate debug and verification testing on USB 3.0 devices, hosts, and hubs across upstream and downstream ports.

Technical Specifications

• Transmitter test point access with single-ended measurement capability per USB 3.0 specification


• Receiver validation and pre-compliance testing support


• Differential measurements via InfiniiMax active differential probe connections


• USB 3.0 transient and steady-state power probing


• Device current measurement breakout


• Mid-bus probing section for active bus traffic and state measurement


• Host TX and RX test sections


• Device TX and RX test sections

Key Features

• Direct SMA connections for straightforward, precision measurements


• Compatible with Keysight Infiniium Series oscilloscope transmitter measurements


• Compatible with Keysight J-BERT receiver jitter tolerance signal injection


• Signal accessibility for USB 3.0 devices, hosts, and hub upstream/downstream ports


• InfiniiMax active differential probe compatibility for active bus characterization

Typical Applications

• USB 3.0 transmitter and receiver pre-compliance testing


• Far End (TP1) electrical compliance measurements


• Active bus traffic debugging and verification


• Power transient analysis on USB 3.0 designs

Compatibility & Integration Required for use with the Keysight U7243A USB 3.0 Electrical Compliance Test Application. Enables all Far End test modes including unit internal, SSC slew rate, template, peak-to-peak differential output voltage, RMS random jitter, and maximum deterministic jitter characterization.