Keysight (Agilent) 81112A Pulse Pattern Generator Module, 3.8V, 330 MHz

The Keysight (Agilent) 81112A is a pulse pattern generator output module engineered for high-speed digital circuit testing and characterization. Operating at up to 330 MHz with output levels to 3.8 Vpp, this module installs in the Keysight 81110A mainframe to deliver dual-channel pulse and pattern generation with precise timing control. The 81112A supports multiple waveform types - pulse, NRZ, RZ, DNRZ, and PRBS patterns up to 14 bits - making it suitable for demanding test environments requiring glitch-free parameter adjustment and selectable edge transition times.

Technical Specifications

• Maximum Frequency: 330 MHz


• Maximum Data Rate: 330.00 Mbps


• Output Voltage: 10 mVpp to 3.8 Vpp into 50 Ω


• Output Impedance: 50 Ω


• Level Window: −2.0 V to +3.8 V


• Output Accuracy: ±2%


• Output Resolution: 10 mV


• Transition Time: 800 ps or 1.6 ns (selectable)


• Period Range: 3.03 ns to 999.9 s


• Pulse Width Range: 1.515 ns to (period − 1.515 ns)


• Variable Delay Range: 0 ns to (period − 3.03 ns)


• Double Pulse Delay Range: 3.03 ns to (period − width − 1.5 ns)


• Timing Resolution: 3.5 digits


• Pattern Depth: 16 kbit per channel


• Maximum PRBS Pattern: 14


• Output Connectors: Differential BNC


• Power Consumption: 170 VA

Key Features

• Dual-channel operation when installed in 81110A mainframe


• Selectable waveform modes: pulse, burst, and pattern


• Self-calibration for improved timing accuracy


• Triggerable or internal PLL operation


• Glitch-free changes to delay, frequency, transition time, width, and delay cycle


• PRBS, NRZ, RZ, and DNRZ pattern support

Typical Applications High-speed digital circuit validation, serial data pattern generation, timing characterization, and protocol compliance testing.

Compatibility & Integration Designed exclusively for integration with the Keysight 81110A Pulse Pattern Generator mainframe. Dimensions: 89 mm H × 426 mm W × 521 mm D. Weight: 21 lb. Requires 100–240 VAC ±10%, 50–60 Hz power input.