ADN2805ACPZ-500RL7

Overview

The ADN2805ACPZ-500RL7 is a 1.25 Gbps Clock and Data Recovery (CDR) IC designed for SONET/SDH applications. It features a patented clock recovery architecture that locks to NRZ serial data without requiring an external reference clock. The device accepts CML differential inputs and provides LVDS differential outputs for recovered clock and data. Operating on a single 3.0 V to 3.6 V supply, it consumes approximately 390 mW of power. The component includes an I²C interface for configuration and status monitoring, housed in a compact 32-lead LFCSP package.

Feature Summary

• Locks to 1.25 Gbps NRZ input data automatically without external reference clock
• Differential CML input and LVDS output interfaces
• Integrated I²C interface for register access and control
• Loss-of-lock indicator with configurable static mode

Applications

• GbE line cards
• SONET/SDH systems

Procurement Notes

Verify the specific ordering suffix -500RL7 corresponds to the reel packaging format required for assembly. Confirm the manufacturer is Analog Devices Inc. and check for RoHS compliance details in the official datasheet before procurement. Ensure the 32-LFCSP-WQ package dimensions match the PCB footprint design.

Selection Notes

Select this component when a 1.25 Gbps CDR solution is needed for SONET/SDH or Gigabit Ethernet applications. Ensure the system supports CML input levels and LVDS output requirements. Verify that the 3.3 V single-supply operation aligns with the board's power distribution network. Consider the 32-lead LFCSP package size for space-constrained designs.

Part Context

This part belongs to the ADN2805 series of clock and data recovery ICs from Analog Devices. It is specifically engineered for high-speed serial data retiming at 1.25 Gbps. The device integrates a delay-locked loop and phase-locked loop to minimize jitter peaking, making it suitable for signal regeneration in telecommunications infrastructure.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.