The Lecroy LW420A is a dual-channel arbitrary waveform generator delivering 400 MHz bandwidth for precise synthesis of complex signal patterns. Built-in processor, graphical display, and internal storage via hard disk and floppy drive enable interactive waveform creation and rapid deployment across test, measurement, and simulation workflows.
Technical Specifications
Signal Generation
• Dual-channel architecture with independent outputs
• 400 MHz bandwidth
• Sample clock: 6 kHz to 400 MHz with 1 Hz resolution
• Sample clock accuracy: 500 mV); 2% ±15 mV (<500 mV)
• Feature placement and single-point resolution: 100 ps
• SSB phase noise: < -90 dBc/Hz @ 10 kHz offset (10 MHz sine reference)
Arbitrary Waveform Memory
• Standard: 256k points per channel
• Optional: 1M points per channel
• Minimum segment length: 64 points
• Fast switch group sequence: < 11 ms waveform switching with auto-advance and external trigger capability
– Key Features
Waveform Generation
• Standard functions: sine (1 Hz–100 MHz), square (1 Hz–50 MHz), triangle (1 Hz–25 MHz), ramp (1 Hz–25 MHz), pulse (20 ns minimum period), DC
• Equation editor for custom waveform creation
• Waveform math functionality for advanced signal manipulation
• Segment linking: 512 links (256k memory) or 2048 links (1M memory)
Signal Control & Synchronization
• External 10 MHz reference input (rear panel BNC): 400 mV p-p to 5 V p-p into 50 Ω
• 10 MHz reference output: 1.6 V (high) / 0.2 V (low) into 50 Ω
• Optional 8-bit digital output (TTL/ECL) synchronized with Channel 1, with dedicated digital editing mode
Waveform Management
• Import from digital oscilloscope or floppy disk
• Internal hard disk and floppy drive for storage and transfer
• Continuous playback with sequence-triggered advance
– Typical Applications
Precision signal synthesis for component characterization, circuit simulation, sensor stimulus, protocol compliance testing, and high-speed communication system validation.
