Part Number: 778952-01
Model Name: PXI-6541
Type: Digital Waveform Instrument

The National Instruments 778952-01 is a high-performance digital waveform generator and analyzer that belongs to the PXI-6541 model line. Capable of sampling digital waveforms at frequencies up to 50 MHz, this multifunctional device features 32 single-ended digital pins that are compatible with typical transistor-to-transistor logic (TTL) voltage levels, making it suitable for testing and integrating with a variety of digital circuits. The instrument's architecture includes deep onboard memory and per-channel direction control, which facilitate complex triggering and entire pattern sequencing, thereby allowing users to create and manage sophisticated test scenarios across different systems and components. The device supports multiple logic levels of 5.0, 3.3, 2.5, and 1.8 V and is equipped with advanced synchronization capabilities through the Synchronization and Memory Core (SMC), enabling seamless integration with mixed-signal test systems, such as arbitrary waveform generators and digitizers.

A key feature of the 778952-01 is its compatibility with the NI Digital Waveform Editor, an interactive software tool that simplifies the creation and editing of digital waveforms. Users can easily import existing test patterns from spreadsheets or VHDL simulation tools in ASCII or value change dump (VCD) formats. The software’s interactive editing capabilities and graphical visualization streamline the process of adapting waveforms for new devices or testing configurations. Additionally, built-in fill patterns, including count up/down and pseudorandom bit sequences (PRBS), enhance the instrument's utility. Once waveforms are finalized, they can be readily imported into development environments such as NI LabVIEW, LabVIEW SignalExpress, and C, significantly accelerating the testing process.

The 778952-01 is supported by the NI-HSDIO driver software package, which is IVI-compliant and provides comprehensive instrument configuration, control, and calibration features. This versatile driver supports a range of programming environments, including LabVIEW, LabWindows™/CVI™, Measurement Studio, Microsoft Visual C/C++, and .NET (C# and VB.NET), ensuring easy integration into various development and testing workflows.