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.


















