AD807A-155BRZRL

Overview

The AD807A-155BRZRL 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 consumption. The device features a 2 mV input sensitivity and recovers a 155.52 MHz clock with 2.0 degrees RMS jitter. It meets CCITT G.958 STM-1 Type A and Bellcore OC-3 requirements without requiring an external crystal.

Feature Summary

• Integrates quantizer, signal level detector, PLL clock recovery, and data retimer in a single package
• Acquires frequency and phase lock on random or scrambled data without preamble or external crystal
• Patented phase detector virtually eliminates pattern jitter
• Provides adjustable signal level detect threshold with electrical hysteresis to prevent chatter

Applications

• SONET OC-3 fiber optic receivers
• SDH STM-1 regenerator applications
• Low-cost 155 Mbps fiber optic transceiver modules
• Telecommunications network interface equipment

Procurement Notes

Verify the specific suffix BRZRL indicates reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. Ensure the component matches the REV.B datasheet specifications for STM-1/OC-3 compliance. Check for ESD sensitivity handling requirements during storage and assembly.

Selection Notes

Select this component for designs requiring integrated clock recovery and retiming at 155 Mbps. It is suitable for systems needing low jitter performance and high input sensitivity. Consider the 16-lead SOIC package constraints and single-supply operation requirements. Verify compatibility with PIN diode preamplifier combinations for the front end.

Part Context

The AD807 series provides complete receiver functions for high-speed optical communications. The AD807A-155 variant is specifically tuned for the 155.52 MHz standard used in SONET and SDH networks. It replaces discrete solutions by combining analog front-end processing with digital clock recovery logic.

Replacement Considerations

Public confirmed substitutes include the AD807A-155BR and AD807A-155BRRL. These variants share identical electrical characteristics and functionality, differing primarily in shipping packaging format rather than device performance.