Agilent Technologies Inc. has introduced a phase noise application software and options for the digital communications analyser (DCA-J). The software allows phase noise/spectral jitter analysis of clock and data signals over a wide dynamic range of 50 Mb/s to 13.5 Gb/s.
A new optical/electrical module provides optical transmitter test and 40 Gb/s optical compliance test; an advanced amplitude analysis option offers new methods for optical modulation amplitude and relative intensity noise.
These enhancements prove the DCA-J’s leading-edge performance and capabilities as an affordable, comprehensive, easy-to-use sampling scope for optical and electrical applications.
The Agilent 83496B clock recovery module for phase noise/spectral jitter analysis
The multi-rate wide loop bandwidth clock recovery module allows precision waveform measurements with a variety of signals, including spread spectrum clocked. This is the industry’s new phase noise application software, which allows phase noise/spectral jitter analysis of clock and data signals ranging from 50 Mb/s to 13.5 Gb/s.
Many serial bus architectures employ spread spectrum clocking for better signal integrity, known as electromagnetic interference (EMI) management. Hardware clock recovery elements of sampling oscilloscopes have not been able to follow the large amounts of jitter produced with spread spectrum clocks, making meaningful measurements virtually impossible. This has been overcome with the Agilent 83496B.
The 83496B and phase noise application software reveal root causes of jitter through frequency domain analysis, an effective and easy method for detecting jitter sources. Also, the 83496B and phase noise application software can perform the analysis on both clock and data signals, so the root causes of data jitter can be related to system clocks.