MAX3872AETJ+T

Overview

The MAX3872AETJ+T is a multirate clock and data recovery (CDR) integrated circuit designed for SONET/SDH applications. It operates with a maximum frequency of 2.67 GHz and accepts CML differential inputs, providing CML differential outputs in a 1:2 ratio. The device functions within a supply voltage range of 3V to 3.6V and supports an operating temperature range from -40°C to +85°C. Packaged in a 32-TQFN (5x5 mm) exposed pad configuration, it integrates PLL functionality for precise timing recovery.

Feature Summary

• Multirate Clock and Data Recovery (CDR) with limiting amplifier
• Supports SONET/SDH standards with input/output CML signaling
• Maximum operating frequency of 2.67 GHz
• Integrated Phase-Locked Loop (PLL)

Applications

• SONET/SDH network interfaces
• Ethernet synchronization equipment

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix ETJ corresponds to the 32-TQFN package and tape-and-reel shipping format. Check current availability status as this product line may have limited stock or end-of-life implications.

Selection Notes

Select this component when designing systems requiring high-speed CDR for SDH/SONET protocols. Ensure the design accommodates the 3V to 3.6V power supply requirement and the thermal dissipation needs of the 32-TQFN package. Verify that the system interface matches the CML input and output specifications.

Part Context

This part belongs to the MAX3872A series of clock and data recovery ICs. It is functionally related to other members like the MAX3873A, which shares similar SONET/SDH capabilities but differs in package type and pin count.

Replacement Considerations

Check for direct cross-reference models within the Analog Devices portfolio. Verify compatibility of electrical parameters such as CML levels and supply voltage before substituting.