MAX3877EHJ

Overview

The MAX3877EHJ is a clock and data retiming integrated circuit designed for SONET/SDH applications. It features a single circuit with TTL input and CML output, supporting data rates up to 2.488 Gbps. The device includes an internal PLL and operates on a 3V to 3.6V supply voltage within a -40°C to +85°C temperature range. Housed in a 32-TQFP exposed pad package (5x5 mm), it provides differential input/output capabilities for signal integrity.

Feature Summary

• Supports data rates up to 2.488 Gbps for SONET/SDH systems
• Integrates a Phase-Locked Loop (PLL) for clock recovery
• Converts TTL input signals to CML output format
• Operates within a 3V to 3.6V supply voltage range

Applications

• SONET/SDH network equipment
• Clock and data retiming circuits
• High-speed digital communication interfaces

Procurement Notes

Verify the specific suffix EHJ corresponds to the 32-TQFP-EP package and industrial temperature grade (-40°C to +85°C). Confirm availability status as distribution channels may vary. Ensure compatibility with 3V to 3.6V power supplies during integration.

Selection Notes

Select this component when TTL-to-CML conversion is required at speeds up to 2.488 Gbps. The integrated PLL simplifies design by handling clock recovery. Consider the 32-TQFP exposed pad package for thermal management and board space constraints in high-density layouts.

Part Context

This part belongs to the Analog Devices/Maxim Integrated portfolio of timing solutions. It is categorized under Application Specific Clock/Timing ICs, specifically targeting synchronous optical networking standards. The TQFP package facilitates surface-mount assembly.

FAQ

What is the maximum data rate supported by the MAX3877EHJ?

The device supports a maximum data rate of 2.488 Gbps.

Does the MAX3877EHJ include a PLL?

Yes, the integrated circuit includes a Phase-Locked Loop (PLL) for clock recovery and retiming.

What are the input and output logic families?

The MAX3877EHJ accepts TTL inputs and provides CML outputs.