MAX3877EHJ+T

Overview

The MAX3877EHJ+T is a clock and data retiming integrated circuit designed for SONET/SDH applications. It operates with a TTL input and CML output, supporting a maximum frequency of 2.488 Gbps. The device features an internal PLL and supports differential input/output signals within a single circuit configuration. It functions on a supply voltage range of 3V to 3.6V and is rated for operation between -40°C and +85°C. The component is housed in a 32-TQFP-EP (5x5) package with an exposed pad for surface mount installation.

Feature Summary

• Clock/data retiming IC optimized for SONET/SDH main-purpose applications
• Supports 2:02 input-to-output ratio with TTL input and CML output
• Features internal PLL and differential input/output capabilities
• Operates at frequencies up to 2.488 Gbps

Applications

• SONET/SDH network infrastructure equipment
• High-speed digital communication systems requiring clock recovery
• Data retiming interfaces for optical or electrical transmission links

Procurement Notes

Verify the specific suffix EHJ+T against official Analog Devices documentation to confirm pinout, lead finish, and RoHS compliance status. Confirm availability through authorized distributors as this part number may have limited stock or be subject to allocation constraints.

Selection Notes

Select this component when a dedicated clock/data retimer with an internal PLL is required for SONET/SDH signals. Ensure the system design accommodates the 3V to 3.6V supply voltage and the thermal requirements of the 32-TQFP-EP package for continuous operation at high data rates.

Part Context

This device belongs to the family of timing and synchronization solutions from Analog Devices/Maxim Integrated. It serves as a specialized interface solution for maintaining signal integrity in high-speed serial data streams, distinct from general-purpose clock generators or standard logic buffers.

Replacement Considerations

Consult official manufacturer substitution guides for verified alternatives. Generic cross-references should be avoided due to specific interface requirements such as TTL/CML conversion and precise frequency specifications.