Features:

• Four independent direct digital synthesizer (DDS) frequency sources allow smooth variation of waveform scan rates without requiring waveform table reloads
• Four versatile, memory-table-driven waveform generators scan up to 65,536 discrete points per waveform at up to 15 MHz point step rate
• Versatile wave memory partitioning allows waveform read/write operations concurrent with wave generation, so multiple waveforms can be loaded and selected in real time
• 32-bit frequency resolution and 16-bit amplitude resolution
• Per-channel divisors allow simulation of fractional 'gear-ratio' waveshapes
• Continuous-play (non-repetitive waveform) modes available
• Output frequency, amplitude, phase, and DC offset are smoothly alterable in real time
• Channels may operate independently or may be synchronized within a module or across multiple modules, up to 16 modules, 64 channels, in a single VME crate
• Output stage analog summing allows mixing of up to four generated waveforms, plus one user-supplied waveform/external analog input
• Onboard microprocessor performs macro commands: complex waveshape building, Fourier synthesis, pulse train generation, sweeping, and test functions
• Programmable waveform sweep, jump and triggered burst mechanisms allow realtime waveform control
• Programmable lowpass filters are provided to smooth discrete sample points

Description:

The V375 is a versatile VME four-channel arbitrary waveform generator. The module architecture was designed in cooperation with major aircraft engine and power systems manufacturers to provide the features needed for accurate simulation of real-world sensor inputs.

The module is ideal for:

• simulation of sensor signals from complex rotating machines

• generation of pure and distorted polyphase AC waveforms, with all waveshape parameters (frequency, amplitude, phase, distortion components) smoothly variable in real time

• generation of complex pulse trains with realtime control of relative pulse positions and amplitudes

• shake table, servo, or actuator drive

The V375 builds on the success of its predecessor, the V370, by extending the output bandwidth to 300 kHz and adding four inputs for user waveforms to sum into the channel outputs. A new burst mode allows software or external input to trigger generation of one or more waveform cycles.