The Keysight 53220A is a 350 MHz universal frequency counter/timer engineered for high-precision measurements across R&D, manufacturing, and service environments. Two 350 MHz input channels deliver 12-digit/second frequency resolution and 100 picosecond time interval resolution, with an optional third channel extending capability to 6 GHz or 15 GHz. The instrument combines rapid measurement speed—up to 75,000 frequency readings/sec and 90,000 time interval readings/sec—with comprehensive acquisition functions including frequency, period, pulse width, rise/fall time, duty cycle, phase, and totalize measurements.
Technical Specifications
Measurement Performance
• Frequency range: 10 Hz to 350 MHz baseband; optional Channel 3 extends to 6 GHz or 15 GHz
• Frequency resolution: 12 digits/second
• Time interval resolution: 100 ps minimum single-shot: 100 µs
• Sensitivity: 20 mVrms (DC to 100 MHz), 40 mVrms (above 100 MHz)
• Gate time: 100 µs to 1000 s
• Input impedance: 1 MΩ parallel <25 pF or 50 Ω (switchable), AC or DC coupling
Measurement Functions
• Frequency, frequency ratio, period, single period, burst carrier frequency, pulse repetition frequency (PRF), pulse repetition interval (PRI), time interval, rise/fall time, duty cycle, phase, and totalize
Data Acquisition & Display
• Measurement speed: 75,000 readings/sec (data logging capacity)
• 4.3-inch color graphical display with trend plot, strip chart, and histogram views with markers
• Built-in math analysis and statistics with colored limit lines for pass/fail indication
• Non-volatile memory: 75 MB storage capacity (up to 5M readings)
• USB Flash and 1M reading memory
– Key Features
• Two standard 350 MHz channels plus optional third channel for extended frequency coverage
• High-speed dual-channel measurement capability at up to 90,000 readings/sec (time interval)
• Real-time graphical analysis with customizable markers and limit lines
• Automatic data logging to onboard non-volatile memory
• Fast LAN data transfer: 1M readings in 2 seconds
– Connectivity & Integration
• LXI Class C compliant
• LAN (Ethernet), USB (I/O and memory), and GPIB interfaces
• BenchVue software included for instrument control and test automation
