AD807A-155BRRL7

Overview

The AD807A-155BRRL7 is a fiber optic receiver integrating data quantization, signal level detection, clock recovery, and data retiming for 155 Mbps NRZ signals. It operates from a single +5 V or -5.2 V supply with 170 mW power dissipation. The device features a PLL-based clock recovery with 2.0 degrees RMS output jitter and accepts differential inputs with 2 mV sensitivity. Outputs are ECL/PECL compatible.

Feature Summary

• Integrates quantizer, signal level detect, and PLL clock recovery in a single package
• Acquires frequency and phase lock on random or scrambled data without preamble
• Patented phase detector eliminates pattern jitter for low noise performance
• Provides adjustable signal level detection threshold with electrical hysteresis

Applications

• SONET OC-3 fiber optic receivers
• SDH STM-1 regenerator applications
• High-speed serial data retiming systems
• Fiber optic communication front ends

Procurement Notes

Verify the specific suffix BRRL7 indicates the 7-inch reel packaging format as defined in the ordering guide. Confirm that the A-155 designation corresponds to the industrial temperature range of -40°C to +85°C. Ensure compatibility with existing board layouts for the 16-lead narrow SOIC package. Check for updated revision status against the manufacturer's current documentation.

Selection Notes

Select this component when a highly integrated solution for 155 Mbps NRZ data is required. It is suitable for designs needing low power consumption and minimal external components for clock recovery. Consider the single-supply operation and ECL-compatible outputs for interface simplicity. Evaluate the jitter tolerance requirements against the specified CCITT G.958 compliance.

Part Context

This part belongs to the AD807 family of fiber optic receivers manufactured by Analog Devices. It is designed to replace discrete solutions combining comparators and PLLs. The device simplifies system design by integrating the quantizer and clock recovery functions. It is commonly used in telecommunications equipment requiring standard SONET/SDH interfaces.

Replacement Considerations

The AD807A-155BR is the tape-and-reel equivalent with identical electrical characteristics. Verify pinout compatibility if substituting with other AD807 variants. No direct cross-manufacturer replacements are documented in the provided source material.