Agilent / Keysight 83495A clock recovery module

The Agilent/Keysight 83495A is a clock recovery module that extracts clock signals from high-speed optical and electrical data streams for digital communication systems. It performs clock recovery and data regeneration, enabling accurate timing measurements, synchronization, and signal integrity analysis. The module integrates with Agilent 86100-series and 83480A Digital Communications Analyzers to function as a multi-rate reference receiver and generate trigger signals for waveform characterization and compliance testing.

Technical Specifications

• Optical: 9/125 µm fiber (1000–1600 nm), 62.5/125 µm fiber (750–680 nm)


• Electrical: 3.5 mm male connectors Data Rate & Clock Recovery


• Continuous clock recovery: 9.953 Gb/s to 11.32 Gb/s


• Supports 10 Gb Ethernet with Forward Error Correction (FEC)


• Phase-Locked Loop (PLL) bandwidth: user selectable, 300 kHz to 4 MHz


• Recovered clock output divide ratio: 1 to 16 (≤7.1 GBd), 2 to 16 (7.1–13.5 GBd); output limited to ≤3.2 GBd Triggering


• Three selectable trigger modes: narrow loop bandwidth, wide loop bandwidth, direct triggering from incoming data Data Regeneration


• Regenerated data output available at front panel ESD Sensitivity


• Input circuits susceptible to electrostatic discharge; static discharge protection required on all front- and rear-panel electrical connectors

Key Features

• User-selectable PLL bandwidth enables jitter spectrum control for standards compliance


• Flexible output divide ratio supports multi-rate operation


• Direct data regeneration for triggering and reference signal generation


• Multiple trigger options optimize performance across varying signal conditions

Typical Applications

• Optical and electrical communication component and system characterization


• Signal integrity and timing measurement in high-speed digital systems


• Device compliance testing requiring multi-rate reference receivers


• Waveform triggering and clock extraction in serial data analysis

Compatibility & Integration Integrates with Agilent 86100A/B-series, 83480A-series, and 54750-series modules within Agilent 86100-series and 83480A Digital Communications Analyzers.