Keysight introduces logic analyzer that captures high data rates

September 9, 2014. Keysight Technologies today introduced a high data-rate state-mode logic analyzer (up to 4 Gb/s) for validating simultaneous read and write DDR4 traffic across all byte lanes captured from a DDR4 DIMM operating at data rates of more than 2.5 Gb/s.

The Keysight U4154B logic analysis system merges three modules to help memory design engineers accelerate turn-on and debugging of DDR2/3/4 and LPDDR2/3/4 memory systems. The system provides reliable data capture, precise triggering and a portfolio of validation and performance tools.

The U4154B combines a state capture speed of 4 Gb/s with the ability to reliably capture data on the industry’s smallest eye openings, as small as 100 ps by 100 mV. These capabilities allow engineers to measure the increasingly fast digital signals used in emerging technologies and validate and troubleshoot their designs with confidence.

“The need for reliable measurements and analysis becomes more critical as DDR4 and LPDDR4 memory speeds continue to increase,” said Dave Cipriani, vice president and general manager of Keysight’s Oscilloscope and Protocol Division. “The new U4154B logic analyzer helps our customers continue to innovate by providing visibility into their high-speed memory systems.”

The new instrument is driven by a 64-bit software application that allows users to take full advantage of all memory installed in their 64-bit operating systems.

The Keysight U4154B is an AXIe-based logic analyzer module. Associated probes and analysis software provide essential capabilities for engineers working with DDR and LPDDR memory systems, high-speed application-specific integrated chips, analog-to-digital converters, and field-programmable gate arrays operating at speeds up to 4 Gb/s.

Timing zoom provides simultaneous state and timing measurements with 80-ps timing resolution and 256-K-sample memory depth, which gives designers more insight into problems by allowing simultaneous state and high-resolution timing measurements over a 20-us time span. The industry’s highest trigger sequencer speed (2.5 GHz) gives engineers the ability to trigger reliably on sequential events on high-speed signals without having to give up triggering flexibility.

At high speeds, signal integrity validation becomes critical for reliable performance. Validating signal integrity on all channels of a DDR or LPDDR system with an oscilloscope can be very time consuming. The eye-scan capability of the U4154B allows a quick overview of signal integrity on all signals of a DDR or LPDDR system in a fraction of the time it takes using alternative methods.

Software and probes for the U4154B logic analyzer help engineers complete their tasks.

The Keysight B4622B DDR2/3/4 and LPDDR/2/3/4 protocol compliance and analysis toolset automates measurements on bus traces to help engineers quickly identify protocol problem areas and obtain an overview of system performance.

Keysight and channel partner FuturePlus Systems offer a broad range of probing solutions compatible with the U4154B, including DDR2/3/4 BGA probes and interposers as well as Keysight soft-touch probes for midbus probing.

The U4154B logic analyzer module is compatible with Keysight’s M9502A two-slot and M9505A five-slot AXIe chassis. Multiple modular systems can be combined for time-correlated measurements on multiple buses in a system.

The new Keysight U4154B logic analyzers can be ordered today with a starting price of $89,288 for 136 channels, including chassis and probe cables, not including probes. Shipments will begin in October.The FS2510 DDR4 DIMM interposer requires the FS1070 modification kit for operation at more than 2.5 Gb/s.




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