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N4960A Serial BERT 17 and 32 Gb/s

Data Sheets

Product highlights

Full data rate pattern generation and error detection

Integrated clock source with calibrated stress capability

Built-in selection of PRBS and common telecom/datacom test patterns

Fully programmable user-defined patterns

Remote heads place the signal very close to DUT

 

Solving the need for speed… Without breaking your budget

Verifying 100G ethernet or 16GFC transceivers requires a BERT operating beyond 13G. This often results in multiple designers needing to share the one serial BERT in the lab—delaying their characterization, along with the development schedule.

The N4960A BERT has fast transition times and real time BER count updates. In addition, low intrinsic jitter provides continuously settable clock frequencies allowing data rates from 5 to 32 Gb/s rates and from 4 to 17 Gb/s. As a result, high quality signals produce excellent fidelity in the eye for improved measurement accuracy.

The solution is compact—allowing it to be easily transported throughout the lab and manufacturing.

Compact architecture

The N4960A serial BERT system consists of the N4960A clock source/controller plus re­mote pattern generator (N4951A/B) and error detector (N4952A) heads. The controller can operate as a stand alone clock source, with jitter injection, in addition to providing the pre­cision timing and control required for remote pattern generator and error detector heads.

Place signal close to DUT

The concept of remote heads, first introduced with the N4965A multi-channel BERT controller, puts the pattern generation and error detection near the device under test, eliminating long cables which degrade the signal. This is especially important beyond 17 Gb/s.

Choose the complement of stress sources you need

The controller is offered in two versions. The N4960A-CJ0 is the base model and is ideal for many optical serial data applications, providing a single tone of sinusoidal jitter injec­tion. Settable over a wide range of frequencies and modulation depth, it facilitates jitter tolerance testing and general receiver characterization.

Integrated control interface and analysis software

Support for the N4960A serial BERT is included in the N4980A multi-instru­ment BERT software. The base software provides an intuitive user interface and is free of charge. With the base software, you can perform single-channel BER, multi-channel BER with an unlimited number of channels, and bathtub mea­surements. Measurement results can be plotted or saved, as well as complete test setups.

Programmable patterns

For special pattern requirements, pro­grammable patterns up to 8 Mb in length can be easily created with powerful editing tools built into the N4980A multi-instru­ment BERT software. Patterns can then be uploaded into the N4960A serial BERT controller.

The programmable pattern editor is used to create and manage pattern streams. Pattern streams are composed of one or more sub-patterns. Each sub-pattern contains a single pattern definition. Using sub-patterns allows users to break down complex patterns for easier organization.

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