The Agilent/Keysight 4352A is a high-performance spectrum analyzer engineered for frequency-domain signal analysis and VCO/PLL characterization. Operating across 10 Hz to 3 GHz, it functions in dual modes—Signal Analyzer for laboratory design evaluation and VCO Tester for production-line high-speed measurements. The instrument serves as the core component of the 4352S test system, delivering phase noise measurements to -157 dBc/Hz at 1 MHz offset with 801 measurement points spanning 100 Hz to 10 MHz offset in 7.4 seconds per sweep.
Technical Specifications
• Frequency Range: 10 Hz to 3 GHz
• Phase Noise Performance: -157 dBc/Hz typical at 1 MHz offset
• Frequency Transient Resolution: 50 Hz
• Frequency Transient Time Resolution: 12.5 microseconds
• Measurement Points: 801 points from 100 Hz to 10 MHz offset
• Measurement Sweep Time: 7.4 seconds per 801-point sweep
• Internal DC Power Supplies: Ultra-low noise architecture
– Key Features
• Dual operating modes—Signal Analyzer and VCO Tester—for design and production environments
• Carrier lock multi-mode PLL technology enables automatic carrier locking during phase noise measurements
• Dedicated firmware optimized for VCO and PLL parameter evaluation
• Provides and controls all test signals: DC control voltage, DC power supply, and 1 kHz modulation
• Comprehensive measurement suite: RF power, frequency, phase noise, frequency transient, spectrum, DC power consumption current, and FM deviation
– Typical Applications
• Local oscillator evaluation in RF wireless communications equipment
• Voltage-Controlled Oscillator (VCO) characterization
• Phase-Locked Loop (PLL) testing and validation
• Production-line VCO/PLL parameter screening
– Compatibility & Integration
The 4352A integrates with a low-noise signal generator to form the complete 4352S test system. Frequency range extends to 26 GHz with the HP 71707A Microwave Downconverter option.
