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Frequency & Timing Modules

Synchronization Module

PFM – Phase/Frequency Meter Module

High-resolution phase comparison for atomic clocks and timing systems

  • Femtosecond-level phase resolution
  • Fully digital architecture
  • Continuous 5 – 100 MHz input frequency range
  • Real-time comparison between any selected input channels
  • OEM 3U Eurocard module for seamless system integration
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Details

Description

High-resolution phase comparison for atomic clocks and timing systems

PFM requires no analog mixing and is ideally suited for the precise characterization and comparison of ultra-stable atomic clock signals.

It provides real-time measurement of phase, frequency offset, and stability across a continuous 5 MHz to 100 MHz input frequency range. The fully digital architecture directly samples each input and processes the data in an FPGA, while software-defined virtual channel pairing enables flexible real-time comparison of all signals, including non-harmonically related frequencies.

 

Applications

Tech Specs

ADEV measurement floor

<4E-14 @1s, <1E-14 @10s, <2E-15 @100s, <1E-15 @1000s, <1E-15 @10000s

Input signal frequency

Sine wave [5 MHz – 100 MHz], any frequency in this range

Number of inputs

4 x SMA type, any combination of two out of four input channels (i.e. 6 virtual channels) reported

Measurement rate

1 Hz (ADEV) & 10 Hz (phase)

Control system interface

Telnet & web GUI (HTTP)

Form factor

3U Eurocard

Rack-mount housing

3U, 19″, 4 slots, available separately