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July 2025
778994-02
NI 778994-02, 16 Bidirectional LVDS Channels, 400 Mb/s, PXI-6562 LVDS Digital Waveform Generator/Analyzer
Actual item may vary if no part number is provided on quote request.
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Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments 778994-02 LVDS Digital Waveform Generator/Analyzer
The National Instruments 778994-02 (PXI-6562) is a high-speed PXI digital waveform generator/analyzer designed for demanding digital test and measurement applications. Built as a 3U, single-slot PXI module, the 778994-02 provides direct connectivity to LVDS digital devices and supports both SDR (Single Data Rate) and DDR (Double Data Rate) operation. The module features 16 bidirectional LVDS channels, with independent per-channel direction control available in SDR mode, making it well suited for complex bidirectional bus testing and high-speed digital interface validation.
The 778994-02 supports data rates of up to 400 Mb/s in DDR mode and provides a maximum clock frequency of 200 MHz. Its clock range extends from 48 Hz to 200 MHz, with support for both burst and continuous operation. To accommodate demanding waveform-generation and analysis applications, the module is available with 2 Mb, 16 Mb, or 128 Mb of onboard memory per channel. This substantial memory capacity allows users to store large numbers of digital patterns and complex waveform sequences, reducing reliance on the host system during test execution.
In addition to its high-speed digital capabilities, the 778994-02 provides advanced triggering and pattern-sequencing functions for executing complex test programs and waveform sequences. Start, Pause, Reference, and Script Advance trigger functions provide precise control over test execution, while trigger and event signals can be routed through PFI, PXI backplane triggers, and PXI STAR triggers. These capabilities make the PXI-6562 well suited for integration into synchronized, multi-instrument test systems.
The National Instruments 778994-02 is designed to provide precise timing during high-speed digital acquisition, with typical channel-to-channel generation skew of ±215 ps at frequencies of 25 MHz and above. This timing performance helps maintain accurate signal alignment when capturing and validating high-speed digital interfaces. The module also supports the NI-HSDIO driver, providing access to the necessary programming, calibration, and instrument-control functionality for development environments including LabVIEW, LabWindows/CVI, and .NET.
For waveform development and system diagnostics, the 778994-02 is compatible with the NI Digital Waveform Editor and NI Measurement & Automation Explorer (MAX). The Digital Waveform Editor provides an interactive environment for creating and editing digital waveforms, while MAX offers configuration and diagnostic capabilities for PXI-based instrumentation.
The PXI-6562 also incorporates National Instruments' System Management Controller (SMC) architecture, allowing it to be synchronized with compatible NI digitizers and waveform generators. This enables the development of high-pin-count, low-skew test systems for complex electronic validation applications. With its combination of high-speed LVDS I/O, flexible clocking and triggering, onboard memory, waveform sequencing, and PXI system integration, the National Instruments 778994-02 provides a versatile solution for advanced digital test and measurement applications across industries such as aerospace, defense, and consumer electronics.
| Model Name | PXI?6562 |
|---|---|
| Part Number | 778994?02 |
| Part Type | PXI LVDS digital generator/analyzer |
| Form Factor | 3U, single?slot PXI module |
| I/O Channels | 16 bidirectional LVDS (per?channel direction in SDR) |
| Max Data Rate (DDR) | 400 Mb/s |
| Max Clock Frequency | 200 MHz (internal/external) |
| Clock Range | 48 Hz to 200 MHz, burst or continuous |
| Onboard Memory | Up to 128 Mb/ch (2, 16, or 128 Mb options) |
| Generation Skew | ±215 ps typ. (≥25 MHz) |
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