PHY1071

125Mbps to 2.125Gbps VCSEL Driver/Postamp with Digital Diagnostics

Programmable 2.125G VCSEL Transceiver

Data Sheet (Rev. 1)
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Overview

  • Multirate from 125Mbps to 2.125Gbps
  • VCSEL Driver Output Stage with 16mA max Modulation Drive and 20mA Bias Current
  • Programmable Mean Power Control Loop
  • Temperature-Compensated Modulation Current
  • Integrated Limiting Amplifier with Selectable Swing CML Output to Reduce Radiated Emissions
  • Programmable Receiver Lowpass Filter
  • Integrated LOS Function
  • Digital-Diagnostic Mode Compliant with SFF-8472 Using an External MCU
  • Stand-Alone Mode Where Device Parameters are Loaded from an External EEPROM
  • -40° to +85°C Operating Temperature Range
  • 6mm x 6mm, 36-Pin QFN Package
  • Eye Safety Logic

The PHY1071-01 is a combined VCSEL driver and limiting amplifier with support for digital diagnostic monitoring for use within small form factor modules for Fibre Channel applications.

The transmitter integrates a high-speed output stage with programmable bias and modulation currents, controlled through a 2-wire serial interface. The mean power control loop allows connection in both common cathode and common anode configurations. A loss-of-signal (LOS) detector is included with detection based on either the receiver photo-detector average current or received-signal modulation amplitude.

When used in digital-diagnostics mode, the integrated A/D converters measuring temperature, Tx bias, supply voltage, Rx signal strength and mean power are read through a 2-wire serial interface. An external microcontroller unit (MCU) is used for calibrating real-time diagnostic monitors and alarm generation.

Applications

  • SFF and SFP Modules
  • SONET, Fibre Channel, GbE
PHY1071
125Mbps to 2.125Gbps VCSEL Driver/Postamp with Digital Diagnostics
PHY1071: Outline Block Diagram
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Documentation

Data Sheet 1

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