AD807A-155BRRL

Overview

The AD807A-155BRRL is a fiber optic receiver with quantizer, clock recovery, and data retiming capabilities. It operates at 155 Mbps for STM-1/OC-3 applications. Key electrical parameters include a supply voltage range of 4.5 V to 5.5 V, power consumption of 170 mW, and input sensitivity of 2 mV. The device features a nominal center frequency of 155.52 MHz, output jitter of 2.0 degrees RMS, and an upper -3 dB bandwidth of 180 MHz.

Feature Summary

• Integrated PLL-based clock recovery and data retiming without external crystals
• Factory-trimmed VCO center frequency ensures reliable frequency acquisition
• Patented phase detector minimizes pattern jitter
• Adjustable signal level detect threshold with hysteresis

Applications

• SONET OC-3 fiber optic receivers
• SDH STM-1 fiber optic receivers
• STM-1 Regenerator Type A systems
• Low-cost 155 Mbps optical communication links

Procurement Notes

Verify the specific suffix BRRL indicates the 2500-piece reel packaging option when sourcing. Confirm the operating temperature range matches the -40°C to +85°C specification for industrial environments. Ensure ESD precautions are observed during handling due to device sensitivity. Cross-reference the manufacturer part number with official Analog Devices documentation to validate authenticity.

Selection Notes

Select this component for high-speed optical applications requiring integrated clock recovery. The single-supply operation simplifies power design compared to dual-supply alternatives. Consider the damping factor capacitor value for loop stability and acquisition time requirements. Evaluate the PECL-compatible outputs against downstream logic interface needs.

Part Context

This device belongs to the AD807 family of fiber optic receivers designed for 155 Mbps data rates. It combines quantization, level detection, and retiming in a single 16-lead SOIC package. The AD807A variant extends the commercial grade to industrial temperatures. It serves as a core building block for SONET/SDH compliant optical networking equipment.

Replacement Considerations

Public confirmed substitutes are not available in the provided source material. Verify compatibility with existing PCB layouts if considering alternative receivers from other manufacturers. Check if pin-out differences require schematic modifications.