DynamicSignals / GaGe CompuGen 3250 High-Speed Digital Output ISA Module

The DynamicSignals/GaGe CompuGen 3250 is a high-speed digital output ISA module that generates complex waveforms and digital patterns with precise timing and flexible control. It delivers 32 bits of parallel digital output clocked up to 50 MHz, supporting arbitrary waveform generation, digital pattern simulation, and hardware-retriggerable burst operations. On-board pattern memory accommodates up to 8 Meg × 32 bits, while selectable internal clocking (50 MHz, 25 MHz, 10 MHz, 5 MHz) and optional external clock input (DC to 50 MHz) enable deterministic signal generation. Multiple output modes - endless looping, multi-shot, and one-shot - combined with internal and external triggering, adapt the module to continuous test scenarios, repetitive pattern sequences, and pulse-echo measurements. TTL/CMOS output levels drive high-impedance loads to 5 V and 50 Ω loads to 3.5 V using four parallel 74FCT162245 drivers for extended current capability.

Technical Specifications

Digital Output: 32 parallel bits with 1 clock output and 1 SYNC signal

Output Voltage: 0–5 V into 1 MΩ; 0–3.5 V into 50 Ω load

Output Logic Levels: TTL/CMOS

Clock Frequency: Internal selectable at 50 MHz, 25 MHz, 10 MHz, or 5 MHz; external input DC to 50 MHz maximum

Maximum Sample Rate: 50 MHz (20 ns per sample)

Memory Depth: 256K to 8M samples (32-bit words)

Timebase Stability: Crystal-controlled on-board oscillator

External Clock Requirements: Minimum 10 ns positive or negative pulse width

Power Consumption: 20 W @ +5 V

Key Features

High-current output drivers for direct load interfacing

Endless looping, multi-shot, and one-shot generation modes

Hardware re-triggerable operation for burst pattern generation

Internal software triggering and external TTL trigger input

Selectable trigger edge (rising or falling)

Typical Applications

Arbitrary waveform generation for complex signal synthesis

Digital pattern simulation and validation

Pulse-echo and radar signal generation

System clock and timing signal generation

Control signal sequencing

Compatibility & Integration

ISA bus interface

68-pin MDR connector (3M p/n 10268-55H3VC)