The HP/Agilent 54754A is a differential and single-ended TDR/TDT module for high-speed signal integrity characterization. It performs Time Domain Reflectometry and Time Domain Transmission measurements across both differential and single-ended configurations, enabling precise analysis of impedance discontinuities, propagation delay, and interconnect performance. The module integrates with compatible mainframe oscilloscopes to deliver comprehensive impulse and transmission testing for high-speed digital design and advanced material evaluation.
## Technical Specifications
• **Measurement Modes:** Differential TDR, single-ended TDR, differential TDT, single-ended TDT
• **Channels:** Two 18 GHz electrical channels with 3.5 mm male connectors
• **Bandwidth:** 12.4 GHz or 18 GHz selectable per channel; 2.5 GHz trigger channel
• **Vertical Resolution:** 12 bits (15 bits with averaging)
• **Vertical Accuracy:** 0.4%
• **Characteristic RMS Noise:** 0.25 mV at 12.4 GHz; 0.5 mV at 18 GHz
• **Maximum Input Signal:** ±2 Vdc
• **Step Generators:** Two built-in generators supporting 1-port, 2-port common mode, and 2-port differential configurations
• **Edge Speed:** User-selectable
• **S-Parameter Measurement:** Supported with mainframe firmware revision A.06.01 or later and Option 202
• **Calibration:** Built-in TDR/TDT calibration
• **Distance Resolution:** Approximately 1.5 mm in air with 40 GHz probes and normalization (rise time limited)
## Key Features
• Dual-channel 18 GHz architecture for simultaneous differential and single-ended measurements
• Automatic and manual TDR/TDT measurement modes
• Advanced waveform processing: FFT, histogram, waveform math, eye pattern, and statistical analysis
• Limit testing capability for production validation
• 12-bit vertical digitization with optional 15-bit averaging mode
## Typical Applications
• Signal integrity analysis in high-speed interconnects
• Impedance discontinuity detection and characterization
• Differential pair measurements and validation
• PCB material and transmission line characterization
• Propagation delay measurement and analysis
## Compatibility & Integration
The 54754A integrates with the following mainframe oscilloscopes: Agilent/Keysight 54750A, Agilent/HP 83480A, Agilent/HP 86100A/B/C, and Agilent/HP 86100D.
