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Digital waveform generator/analysers ideal for military

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article image Suitable for functional testing of semiconductor components.

AUTOMATED test engineers and designers now can use National Instruments’ 400Mb/s and 200Mb/s digital waveform generator/analysers to interface to low-voltage differential signalling (LVDS) devices with desktop PCs.

Using LVDS, engineers can transfer data at faster rates with less power and across longer distances, which is not possible with single-ended technologies.

National Instruments’ PCI-6562 and PCI-6561 LVDS digital waveform generator/analysers complement existing NI PXI-6562 and PXI-6561 digital modules and give engineers a solution to LVDS on the desktop.

With the new PCI boards, engineers can create low-cost solutions with existing desktop computers, or they can use PXI modules for rugged, high-channel-count applications.

Both the PCI and PXI devices offer 400Mb/s and 200Mb/s data rates in double-data-rate mode with 200MHz and 100MHz clocks, respectively.

The devices feature 16 LVDS channels, per-channel direction control in single-data-rate mode and programmable data delay.

Engineers also can select from three memory options that include 2, 16 or 128Mb/channel of deep onboard memory.

Because LVDS is differential, it offers high noise immunity and common-mode rejection. The differential nature also permits a small voltage swing while still maintaining high signal integrity.

This low-voltage swing minimises power dissipation and also provides potential for fast data rates in the hundreds of megabits per second.

These features make the PCI-6562 and PCI-6561 digital waveform generator/analysers ideal for military and aerospace ATE applications, such as satellite, surveillance and communications, as well as functional testing of semiconductor components.

The new boards are built on the common Synchronisation and Memory Core (SMC) architecture, so they tightly synchronise with other SMC-based NI modular instruments, such as the 200MS/s PXI digitiser and arbitrary waveform generator.

Engineers can also use the SMC synchronisation technology to build high-channel-count digital systems using multiple LVDS boards.

To quickly create test applications, engineers can integrate the boards with powerful National Instruments software tools such as the LabVIEW graphical development environment, the Digital Waveform Editor for creating and editing test vectors and SignalExpress for quickly acquiring and analysing electronic signals.

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