MAX3668EHJ

Laser Drivers Overview

The MAX3668EHJ is a complete +3.3V laser driver designed for SDH/SONET applications with data rates up to 622Mbps. It integrates automatic power control (APC) circuitry and accepts differential inputs. The device operates on a supply voltage range of 3.14V to 5.5V, with a maximum specified supply voltage of 3.3V in some contexts, and draws an operating supply current of 38 mA. It is housed in a TQFP-32 package.

Laser Drivers Feature Summary

• Integrates automatic power control circuitry for stable laser operation
• Accepts differential input signals for high-speed modulation
• Designed specifically for SDH/SONET optical communication standards

Laser Drivers Applications

• SDH/SONET fiber optic transceivers
• FTTx applications
• SFP module implementations

Laser Drivers Procurement Notes

Verify component status as the MAX3668EHJ is listed as obsolete by the manufacturer. Confirm availability through authorized distributors or secondary markets if sourcing for production. Ensure compatibility with existing design specifications before procurement, considering potential end-of-life implications for long-term support.

Laser Drivers Selection Notes

Select this component for legacy SDH/SONET designs requiring integrated APC and differential input handling at 622Mbps. Evaluate the TQFP-32 package constraints against board space requirements. Consider the obsolete status when planning for future maintenance or expansion, potentially evaluating newer generation drivers from the same family if available.

Laser Drivers Part Context

Part of the MAX3668 series from Maxim Integrated, focusing on laser drivers for optical communications. This specific model targets the 622Mbps speed class, bridging lower-speed OC-12/STM-4 requirements. It represents a solution for compact, low-voltage optical transmission systems common in earlier generation telecom infrastructure.

Laser Drivers Replacement Considerations

Public confirmed substitute part numbers are not explicitly provided in the source material. Consult Analog Devices documentation for direct replacements within the MAX3668 family or updated generations suitable for SDH/SONET applications.