LeCroy 9109 Arbitrary Function Generator

The LeCroy 9109 is a dual-channel arbitrary function generator delivering precise waveform generation from DC to 25 MHz. Built around a 50 MSa/sec sampling engine with 128 Kbyte waveform memory (64K points per segment), the 9109 generates standard waveforms - sine, square, triangle, pulse, ramp, and DC - alongside user-defined arbitrary waveforms with 5 nsec point-to-point time resolution. Analog output ranges from 20 mV to 10 V (10 Vp-p into high-Z, 5 Vp-p into 50 Ω) at 8-bit resolution.

Dual 8-bit TTL or ECL digital outputs deliver latched data synchronized to waveform generation, supporting up to 200 Mbytes/sec in single-channel mode and 100 Mbytes/sec in dual-channel mode. Channel summing - internal or external - enables composite waveform control and up to 9-bit effective resolution. Five operating modes, sequence file storage for hundreds of generation commands, and flexible triggering (manual, external BNC, GPIB/RS-232 bus, or front-panel control) make the 9109 suitable for R&D, quality control, and automated test environments.

Technical Specifications

• Channels: 2


• Sampling Rate: 50 MSa/sec


• Record Length: Up to 64,000 points per segment; 128 Kbyte waveform memory with segment linking for longer waveforms


• Analog Output Voltage: 20 mV to 10 V (10 Vp-p into high-Z; 5 Vp-p into 50 Ω)


• Analog Output Resolution: 8-bit


• Frequency Range: DC to 25 MHz


• Standard Waveforms: Sine, Square, Triangle, Pulse, Ramp, DC


• Arbitrary Waveform Time Resolution: 5 nsec per point minimum


• Digital Outputs: Dual 8-bit TTL or ECL (via 20-pin connectors)


• Digital Data Rate (Single Channel): Up to 200 Mbytes/sec


• Digital Data Rate (Dual Channel): Up to 100 Mbytes/sec

Key Features

• User-defined waveform generation with fine point-to-point control


• Internal and external channel summing with independent amplitude control


• Built-in output smoothing filters


• TTL outputs with complementary clock, 75 Ω series resistors, dual TTL load drive capability


• ECL outputs with differential data and clock lines, 470 Ω internal pulldowns


• Sync outputs for synchronized operation


• Sequence file storage for complex multi-waveform automation


• Five operating modes

Triggering & Control

• Trigger sources: Manual (front panel), External (BNC, 50 Ω), Bus (GPIB/RS-232), Control Panel


• External trigger slope: Selectable (positive or negative threshold)

Typical Applications Research and development, product qualification, manufacturing test automation, signal integrity analysis, and component characterization requiring arbitrary or standard waveform generation with synchronized digital outputs.