The Keysight E5055A SSA-X Signal Source Analyzer characterizes RF signals from 1 MHz to 8 GHz with exceptional phase noise measurement sensitivity and residual noise analysis. This bench-top instrument delivers phase noise sensitivity to -177 dBc/Hz (typical at 1 GHz carrier, 1 MHz offset) and enables absolute, residual, and cross-correlation phase noise measurements across offset frequencies from 1 mHz to beyond 1 GHz. The analyzer integrates a built-in clean reference source, advanced path delay compensation for residual phase noise accuracy, and two DC voltage channels for VCO characterization and tuning.
Technical Specifications
• RF Frequency Range: 1 MHz to 8 GHz
• Phase Noise Offset Range: 1 mHz to > 1 GHz
• Phase Noise Sensitivity: -177 dBc/Hz (typical, 1 GHz carrier @ 1 MHz offset)
• System Noise Sensitivity: -175 dBc/Hz (typical)
• Cross-Correlation Factor: 1 to 100,000
• Residual Spurious Level: < -50 dBc (carriers < 100 MHz), < -80 dBc (carriers ≥ 100 MHz)
• Level Measurement Uncertainty: ±1 dB to ±1.2 dB across -20 dBm to +15 dBm input range
– Key Features
• Dual-mode phase noise measurement with cross-correlation method
• Ultra-low residual phase noise through internal reference source and path delay compensation
• Option 100 (standard) and Option 200 (4 to 7 dB enhanced sensitivity to ~10 kHz offset)
• Two clean DC and tuning voltage outputs for VCO evaluation
• Full-span spectrum analysis with AM noise and baseband noise measurements
• Frequency, power, and phase transient analysis
• Clock jitter characterization
• Pulsed RF measurement capability (S96325B software)
• Optional two-port vector network analysis for DUT characterization
– Typical Applications
• Oscillator and frequency synthesizer evaluation
• Phase noise and spectral purity assessment
• Clock stability and jitter analysis
• VCO tuning voltage and performance characterization
• Signal source quality assurance and validation
– Compatibility & Integration
The E5055A accepts sinusoidal RF inputs from 1 MHz to 8 GHz. Optional software modules expand measurement coverage for pulsed RF and VNA functionality. Enhanced phase noise sensitivity (Option 200) provides 4 to 7 dB advantage at offsets to approximately 10 kHz.
